Detailed information on the sessions
This is a list of the existing detailed session descriptions.
S1 APPLIED AND ENVIRONMENTAL GEOLOGY |
S1.1 Geohazards in the Nordic and Arctic regions |
Conveners: Þorsteinn Sæmundsson, Reginald Hermanns Scheduled: Wed 10:00–12:00, Wed 14:00–14:30 Posters at display: Poster Session 1, Wed 15:00–16:00 The Nordic countries face a varied spectra of geohazards, spanning from geophysical types such as volcano eruptions and earthquakes in Iceland over to quick clay landslides in Norway and Sweden, rockslides and related displacement waves in Norway and Iceland. In addition, the Nordic countries are exposed to extreme weather conditions, such as storms with high wind speeds, heavy rainfall and fast temperature changes that often result in landslides, flooding and coastal erosion. This session aims at presenting a wide range of geohazard studies in the Nordic countries and Arctic regions, including case studies from various geographical, geological and topographical settings and more general evaluations of geohazards from a Nordic perspective. The session is open for all types of geo and natural hazards present in the region.
TALKS: 1. What did trigger the rockslide in the Askja caldera on the 21st of July 2014? 2. Lime stabilisation of soil in the Vinge urban development area, Denmark 3. Permafrost in steep slopes in Norway 4. Contaminated area instability – the example of Ångerman River, northern Sweden 5. The influence of steep rock walls on the ground thermal regime 6. Wind wave climate of west Spitsbergen - seasonal variability and extreme events 7. The origins of large, coastal, paleo-landslides in central Sweden 8. Ages of rock-avalanche deposits allow tracing the decay of the Scandinavian ice sheet 9. Debris avalanches in western Norway; comparison of geological setting and release mechanisms 10. Drivers and Estimates of Terrain Suitability for Active Layer Detachment Slides and Retrogressive Thaw Slumps in the Brooks Range and Foothills of Northwest Alaska, USA | CANCELLED
POSTERS: Determining snow avalanches, debris flows and rock fall runout distances on an active colluvial fan. Innfjorddalen, Norway Development of an empirical tool to predict rockslide dam heights of future rock slope failures Slush flow thresholds for regional early warning in Norway |
S1.2 Hydrogeology |
Conveners: Kirsti Korkka-Niemi, Jarkko Okkonen, Taina Nystén Scheduled: Thu 10:30–12:00 Posters at display: Poster Session 2, Thu 15:00–16:00 This session focuses on natural or anthropogenic water contamination, including contamination pathways and transmission, monitoring and evaluation, vulnerability and risk assessment as well as remediation of contaminated aquifers. Moreover, this session invites presentations on physical, chemical and ecological measurements and monitoring of interactions between aquifers and both fresh and marine surface water bodies, including application of isotopes and other tracers for improved understanding of flow and transport and interactions between groundwater and surface water.
TALKS: 1. A 3D-model of the Uppsala esker 2. Groundwater vulnerability assessment of shallow low-lying coastal aquifer in south Finland 3. Infrared imaging in assessing ground and surface water resources related to mining development sites, northern Finland 4. Acidity and geochemistry of coarse-grained acid sulfate soil materials in western Finland 5. Adaptation measures for securing good quality and quantity in Finnish groundwater resources 6. Groundwater Checklist - Metadata tool for groundwater protection and interaction
POSTERS: Understanding groundwater-surface water exchange as a tool for groundwater management. Bank storage affected aquifer along the river Kitinen in Sodankylä, Northern Finland |
S1.3 Mining and the environment: Towards socially and environmentally acceptable mining |
Conveners: Veli-Pekka Salonen, Päivi Kauppila Scheduled: Fri 14:00–14:30, Fri 15:00–16:00 Posters at display: Poster Session 1, Wed 15:00–16:00 Geology of metals and human health impacts
TALKS: 1. Characterizing the Aijala copper mine tailings by diverse mineralogical methods 2. Seepage water quality and prediction of waste rock effluents 3. Mobilization of heavy metals in submarine mine tailings 4. Mine Closure Wiki 5. Developing tools for the integration of mining with other land uses 6. Stakeholder engagement practiced by the Geological Survey of Finland in its mineral potential mapping in Southern Finland
POSTERS: Mining environments – GTK's isotope analytical facilities on dissolved elements in water |
S1.4 Geoenergy |
Conveners: Signhild Gehlin, Teppo Arola Scheduled: Thu 14:00–14:30, Thu 16:00–17:30 Posters at display: Poster Session 1, Wed 15:00–16:00 One of the main challenges for the 21st century is a secure, sustainable and economical energy supply. This session aims at providing a holistic approach and view on the different aspects of geoenergy utilization as an example of renewable energy. Contributions from experimental, theoretical, and numerical studies as well as from field to laboratories or natural analogues are welcome. We encourage also to submit abstracts related to experiences in designing all kind of ground source heating and cooling systems.
TALKS: 1. Geoenergy in the Nordic Countries | KEYNOTE TALK 2. Groundwater as an energy resource in Finland 3. ORMEL- Optimal utilization of ground water for heating and cooling in Melhus and Elverum 4. Seasonal storage of heat and cold in the bedrock. 5. Energy systems based on closed loop boreholes in sedimentary areas - development of tools and best practices 6. Detecting and quantifying the influence of natural convection on a thermal response test carried out in a groundwater-filled borehole heat exchanger
POSTERS: Mapping of CO2 Storage Possibilities on the Norwegian Continental Shelf CO2 storage potential of the Norwegian Continental Shelf |
S1.5 Nuclear waste disposal |
Conveners: Elina Sahlstedt, Juha Karhu Scheduled: Wed 16:00–17:30 Posters at display: Poster Session 1, Wed 15:00–16:00 Much effort has been directed to make geological disposal of nuclear waste safe and technically feasible. This session concentrates especially on the geological aspects of nuclear waste disposal in crystalline bedrock. Possible topics may address, for example, the evolution of groundwaters, the effects of glacial isostasy and tectonic risks or the transport properties of uranium and other radioactive isotopes. This session is open to presentations on on-going projects dealing with nuclear waste disposal, but it also gives the possibility to update the information on recent developments in the national projects of geological disposal.
TALKS: 1. Glacial meltwater in the bedrock - identification and reactions | KEYNOTE TALK 2. The effects of the glaciation for deep geological disposal of spent nuclear fuel in crystalline shield rock settings. 3. Deep groundwater evolution in Outokumpu, eastern Finland - from meteoric water to saline gas rich fluid 4. Microscale variation in stable isotope composition of fracture minerals – a key to subsurface processes 5. Modelling of Single Tunnel Crosscutting Fractures in the underground rock characterisation facility ONKALO, Olkiluoto, SW Finland
POSTERS: Measurement and monitoring of geological repository boreholes using terrestrial laser scanner and photogrammetry New 3D modelling approaches in the study of Palmottu fracture patterns |
S1.6 Weathering and Alteration processes of Rocks and Minerals |
Conveners: Henning Dypvik, Vesa Peuraniemi Scheduled: Thu 8:15–10:00 Posters at display: Poster Session 2, Thu 15:00–16:00 Weathering and alteration of Earth materials in the rock cycle provides the substrate and most of the necessary compounds for life. The processes are controlling factors in the near-surface environment where water, rock, air, and life meet in a dynamic interplay; generating soils/ecosystems and shaping landscapes. Weathering is also responsible for generation mineral resources (Al, Fe, Ni, Cu, P, clay minerals), many of which are of vital importance for advanced technologies. In glaciated areas weathering products may constitute an important part in glacial deposits and have an impact in geochemical exploration for ore deposits. Physical-chemical phenomenon are not limited just to surface processes but alteration of buried primary rocks and minerals, often associated with biological agents, may reach the deep subsurface. Understanding the physical-chemical and biological processes that affect the weathering and alteration is important across a large range of problems, from assessing soil sustainability over timescales of human observation, to quantifying feedbacks between climate, weathering and tectonics over billions of years on Earth and beyond. These studies are coming more and more interdisciplinary bridging a broad range of disciplines, from mineralogy to biochemistry. All aspects of weathering phenomena and their research methods are welcome contributions to this session.
TALKS: 1. Altered basement rocks as sediment source and oil reservoir - the southern Utsira High, Norwegian North Sea | KEYNOTE TALK 2. Inventory and characteristics of known saprolite locations in Norway 3. Deep weathering and mineral exploration in Norway 5. Saprolites as mineral resources and significance in geochemical exploration 6. Aluminum phosphate– sulfate minerals as indicator of Neoproterozoic Baltic paleosol paleoenvironment 7. Earth Mars Analogues - Linking experimental and Martian clays
POSTERS: Geochemical changes in a podzolic forest soil caused by mechanical site preparation Neoproterozoic weathering crust of Baltic Basin Deep weathering patterns on the Fennoscandian shield in northern Finland |
S1.7 Environmental geology |
Conveners: Veli-Pekka Salonen, Timo Tarvainen, Peter Österholm, Arto Itkonen Scheduled: Thu 14:00–14:30, Thu 16:00–17:00 Posters at display: Poster Session 2, Thu 15:00–16:00 The session is open all submissions that do not fall into currently identified symposia. Topics may include such as land-use planning, open data issues, geology and health, urban geochemistry, use of unmanned aerial vehicles etc.
TALKS: 1. Sources and controls of organic carbon in subarctic lakes across the Fennoscandian tree line 2. Speciation matters: views on iron and sulfur chemistry in geothermal waters, Iceland 3. Geochemistry in soil and humus, central Norway 4. Current applications in using geochemical baselines 5. The first arsenic guidelines for aggregate production were established in Finland 6. Acid Sulfate Soils in Finland - mapping and environmental risks
POSTERS: Acid sulphate soils along the coast of northern Sweden Tracing the carbon cycle in river systems using the isotopic composition of dissolved inorganic carbon Comparison on humus and soil geochemical baselines in Southern Finland Acid Sulfate Soils in Northern Europe. A preliminary overview Extraction of Natural Stone in Finland - The Best Environmental Practices (BEP) |
S2 ECONOMIC GEOLOGY — TIMELY CONCEPTS AND NEW DEVELOPMENTS |
S2.1 Critical metals — petrology, geochemistry and ore geology |
Conveners: Laura Lauri, Håvard Gautneb Scheduled: Fri 8:30–10:00, Fri 10:30–12:00 Posters at display: Poster Session 2, Thu 15:00–16:00 Critical metals session concentrates on the raw materials defined as critical by the European Commission. These include antimony, beryllium, borates, chromium, cobalt, coking coal, fluorite, gallium, germanium, graphite, indium, magnesite, magnesium metal, niobium, phosphate rock, platinum group metals (PGM), silicon metal, rare earth elements (REE+Y+Sc), tantalum, and tungsten, many of which are known to occur in the Fennoscandian shield. All geological aspects of the critical raw materials are welcome contributions to the session - petrology of the rock units that host them, geochemistry of the metals and minerals that contain them, exploration and ore deposits. The aim is to increase the knowledge on the critical metals and minerals for the future needs.
TALKS: 1. Studies on mineralogy and beneficiation of REE ores | KEYNOTE TALK 2. Transport properties of Nb and Ta in hydrothermal fluids: thermodynamic analysis of hydroxo- and fluoride complexes over a wide range of temperatures and pressures 3. REE mineralisation in Sweden: 222 years of discovery? 4. Critical raw material potential in Finland 5. Quantifying the resource potential of selected end-of life products for five critical metals 6. Critical metals in the mines and dumps of W Bergslagen, Sweden 7. Mineralogy and geochemistry of the apatite vein-type Mushgia Khudag REE-deposit in southern Gobi, Mongolia 8. Scandium deposits and potential in Finland 9. 300 million years of indium-forming processes in A-type igneous environments in the Fennoscandian Shield 10. Graphite deposits of Norway; a review 11. The Nunasvaara graphite deposit, northern Sweden: New geochemical and U-Pb zircon age results for the host greenstones
POSTERS: REE mineralisation in the Olserum area, SE Sweden Thermal and hydrothermal influence of rapakivi igneous activity on Late Svecofennian granites in SE Finland |
S2.2 Fluid and melt processes in the Earth |
Conveners: Gabriel Berni, Thomas Wagner, Erik Jonsson Scheduled: Wed 14:00–14:30, Wed 16:00–17:00 Posters at display: Poster Session 1, Wed 15:00–16:00 Fluid and melt processes play a major role for transport and concentration of metals in hydrothermal, magmatic, magmatic-hydrothermal and diagenetic ore deposits. Understanding such processes is key for the development and validation of ore-forming models, and in turn define new exploration targets. This session will focus on all aspects of fluid and melt processes in the Earth, such as fluid and/or melt inclusions, fluid chemistry and mineral chemistry of ore deposits and their host rocks. Contributions on fluid and melt processes which are not directly related to ore-forming systems are also welcome.
TALKS: 1. Fluid migration and fluid-rock interaction during metamorphism 2. Coupled reaction driven deformation, strain softening and CO2 metasomatism in peridotites from the Reinfjord Ultramafic complex, northern Norway 3. Fluid inclusion LA-ICPMS analysis of ore fluids from the Pampalo orogenic gold deposit, Eastern Finland 4. Au-rich fluid inclusions in gold-bearing quartz from the Kola superdeep borehole (SG-3) 5. Using altered enclaves in the identification of subseafloor replacement processes in VMS systems 6. Age and Mo mineralisation in the Phnom Baseth granite, Cambodia
POSTERS: Hydrothermal alteration and sources of fluids in the Juomasuo Au-Co deposit, Kuusamo Schist Belt, Finland |
S2.3 Geochemical and geophysical exploration methods |
Conveners: Elena Kozlovskaya, Pertti Sarala, Pasi Eilu Scheduled: Wed 10:30–12:00 Posters at display: Poster Session 2, Thu 15:00–16:00
TALKS: 1. The Geochemical Atlas of Sweden ; element background concentrations in till 2. Ultra low-impact geochemical method for greenfield exploration using snow 3. Current trends in geophysical exploration for minerals 4. The origin of internal reflectivity within the Kevitsa intrusion 5. Time-lapse seismic tomography using the data of microseismic monitoring network in Pyhäsalmi mine (Finland)
POSTERS: Geochemistry of the hydrothermally altered rocks in Orijarvi, SW Finland The use of geophysical methods in assessment of natural stone prospects |
S2.4 Precambrian metallogeny |
Conveners: Pasi Eilu, Per Weihed Scheduled: Thu 8:30–10:00, Thu 10:30–12:00 Posters at display: Poster Session 2, Thu 15:00–16:00 This symposium comprises oral and poster presentations on Precambrian metallic ore and industrial mineral deposits, from the Fennoscandian and other shield areas. The presentations may deal with 1) individual deposits and prospects and describe their geological and tectonic features, metal content, isotopic signatures, genesis, exploration potential etc., and 2) embrace whole metallogenic belts and provinces in their ore types and geological evolution. We also welcome presentations which compare entire terranes, such as all or parts of the Fennoscandian shield, with other Precambrian shield areas. Especially, overviews of ore-forming processes in the context of the Precambrian crustal evolution in space and time are expected in this session.
TALKS: 1. Precambrian orogens and their hypozonal orogenic gold ores | KEYNOTE TALK 2. Palokas Prospect: An Exciting new Gold Discovery in the Peräpohja Schist Belt, Finland 3. Tourmaline geochemistry and B-isotopes from the Palokas Au-mineralization, Peräpohja Belt, Northern Finland 4. Re-Os and U-Pb geochronology of the Au-U mineralization at Rompas, Peräpohja Schist Belt, 5. In-situ U–Pb of hydrothermal phosphates by LA–ICP–MS: Dating episodic mineralisation along the Kiistala Shear Zone, Central Lapland Greenstone Belt 6. Poly-phase structural controls on ore deposits in northern Sweden 7. Base Metal Zoning in the Pyhäsalmi Volcanogenic Massive Sulfide Deposit 8. Regional scale prospectivity analysis of Outokumpu mineral district 9. Can polymetallic mineralizations in Hiekkapohja, Central Finland be part of a one porphyritic system? 10. The Circum-Arctic Mineral Resource Project 11. The Barents project
POSTERS: Assessment of orogenic gold resources in Finland Metallogeny of the Precambrian West Troms Basement Complex, northern Norway Mineralogy and geochemistry of indium-bearing polymetallic veins in the Sarvlaxviken area, Lovisa, Finland Mineral chemistry, spectroscopy and parageneses of oxyborates in metamorphosed Fe-Mn oxide deposits, Bergslagen, Sweden Major and trace element analysis of sphalerites from W Bergslagen, Sweden Petrophysics revealing alteration zones of ore deposits Trace element composition of Fe-oxides from Cu-Fe mineralization in the Paleoproterozoic Lätäseno Schist Belt, Finnish Lapland Phyllic alteration-related Cu-Au mineralisation at Raitevarri, Norway Te-Se-Au-Ag-Bi-rich polymetallic vein mineralisation south of Glava, SW Sweden The Palaeoproterozoic Vannareid VMS occurrence in the northern Fennoscandian Shield |
S3 EDUCATION AND OUTREACH |
S3.1 Geoscience outreach |
Conveners: Toni Eerola, Ari Brozinski Scheduled: Fri 9:15–10:00, Fri 10:30–12:00 Posters at display: Poster Session 2, Thu 15:00–16:00 Geologists understand the landscape. To us, the surrounding scenery tells the story of Earth, thus enabling us to understand the inner works of Tellus and hence making us aware of possible threats and challenges that our only home encounters. Alas, for most humans this story remains hidden, making public awareness of geosciences important. Geology helps to understand essential fields to our existence which include climate change, food security and ground water pollution. Additionally geology influences daily lives in unexpected ways, e.g. by providing tools to investigate the availability and access to mineral resources.
TALKS: 1. Geodiversity - A strategic concept in geological outreach | KEYNOTE TALK 2. ProGEO - The European Association for the Conservation of the Geological Heritage 3. The Making of a county - geoheritage mapping in Nordland, Northern Norway 4. Geoheritage - the future potential of Geological Surveys 5. The Geological Narrative 6. Geoparks promotes geological heritage 7. Playing with dimension stones: A geological city walk at the New Performance Turku Festival, Finland 2014
POSTERS: COMING TO TERMS WITH GEODIVERSITY IN NORWEGIAN NATURE MANAGEMENT European Plate Observing System (EPOS) Anthropogenic Hazard — Pyhäsalmi Episode ASPIRING TROLLFJELL GEOPARK – GEOLOGY AND LANDSCAPE AT SØR-HELGELAND AND LEKA, CENTRAL NORWAY |
S3.2 Higher education in geosciences: Experiences, practices and development |
Conveners: Kirsti Korkka-Niemi, Mia Kotilainen, Eila Varjo Scheduled: Thu 8:30–10:00 Posters at display: Poster Session 2, Thu 15:00–16:00 This session highlights examples of both formal and informal educational classrooms as well as laboratory and field experiences. Especially examples of learning on field and via project based courses are valued. Presentations introducing research on teaching and learning are very welcome. Furthermore, we invite discussion on the role of development of teaching and learning methods in educating the future geoscience workforce. We also encourage the students to submit abstracts for posters or oral presentations on topics related to learning experiences.
TALKS: 1. The role of misconceptions in the development of a reliable geological knowledge. ? statistical analysis of the alternative ideas of Earth Science Bachelor students at Uppsala University. 2. GTK Academy for the maintenance of high-grade professional geological survey 3. Educating towards expertise – self-regulated learning methods in geology 4. Experiences of teaching in the Turkana Basin Fieldschool, northern Kenya 5. New Master’s program in Solid Earth Geophysics at the University of Helsinki: Lessons from one year of operation 6. Applied geophysics at Oulu Mining School: challenges and solutions
POSTERS: Does University Entrance Exam Type Predict Student-material ? International Earth Science Olympiad: inspiring a new generation of geoscientists Helping geology students to learn without teachers present |
S4 GEOPHYSICS |
S4.1 Drilling projects |
Conveners: Ilmo Kukkonen, Maria Ask Scheduled: Fri 10:30–12:00 Posters at display: Poster Session 2, Thu 15:00–16:00 The session focuses at different applications of drilling in geosciences. We welcome contributions on drilling-based projects in pure research as well as exploration for mineral and geothermal energy resources. Presentations on results of finished and ongoing as well as planned research drilling projects on-shore and off-shore are accepted in the session.
TALKS: 1. The Collisional Orogeny in the Scandinavian Caledonides (COSC) project: investigating mountain building through drilling of a Paleozoic orogen | KEYNOTE TALK 2. Hydrogeologic testing and sampling at the COSC-1 borehole 3. Orientation of in-situ horizontal stress in Outokumpu, Finland 4. Deep drilling for geothermal energy in Finland 5. Project DAFNE: Deep drilling in the Pärvie postglacial fault system
POSTERS: Helsinki University Kumpula Campus Drill Hole Project |
S5 LITHOSPHERE OF NORTHERN EUROPE |
S5.1 Archean of the Fennoscandian shield: From bits and pieces towards a bigger picture |
Conveners: Perttu Mikkola Scheduled: Fri 8:30–10:00 Posters at display: Poster Session 2, Thu 15:00–16:00 Data concerning individual Archean intrusions, areas, suites and specific events of the Fennoscandian Shield has cumulated significantly during the last two decades. These results do not always fit into the proposed geologic scenarios of the overall development of the area, thus we encourage contributions that refine or redefine the existing areal models. But as also numerous detailed questions still remain unanswered, this session welcomes also contributions of more detailed studies that potentially contribute to the building of the wider geological picture.
TALKS: 1. New insights into the geological evolution of the Archean Norrbotten province, Fennoscandian shield | KEYNOTE TALK 2. Archean evolution of Volgo-Uralia – isotopic constraints 3. Chronostratigraphic aspects of the Archean Suomussalmi-Kuhmo-Tipasjärvi greenstone complex 4. Archean Belomorian collisional orogen: new data and implication for supercontinent reconstuction 5. Deeper meaning of the compositionally diverse Neoarchean magmatism in the Karelia Province?
POSTERS: Magnetotellurics in Northern Finland |
S5.2 Archean-Proterozoic transition |
Conveners: Andrey Bekker, Eero Hanski, Peter Sorjonen-Ward Scheduled: Wed 16:00–17:15, Thu 8:30–10:00 Posters at display: Poster Session 1, Wed 15:00–16:00 The Archean-Proterozoic transition encompasses 500 Ma of Earth history with substantial changes both in endogenic and exogenic regimes, leading to the establishment of the modern-style Earth system. These changes were linked to the cooling of the mantle and environmental perturbations related to the Great Oxidation Event at ca. 2.3 Ga. The time period is characterized with a variety of geological and geochemical phenomena, including changes in the composition of volcanic rocks, disappearance of mass-independent fractionation of sulfur isotopes in sedimentary rocks, widespread deposition of glacial diamictites, marine carbonates with unprecedentedly heavy carbon isotope values, iron formations, and organic-rich shales. The Fennoscandian Shield provides an excellent geological record to study the global events that occurred during the Archean-Proterozoic transition. Contributions on all subjects relevant to advancing our understanding of this exciting stage in Earth history are welcome.
TALKS: 1. Longevity of Archean oceanic environments – insights from the Ilomantsi greenstone belt 2. High-grade metamorphism of the Archean to Palaeoproterozoic gneiss complex in Vesterålen, North Norway 3. Age and Sm-Nd isotopes of Palaeoproterozoic mafic rocks in Finland – evidence for rifting stages and magma sources 4. Paleoproterozoic spherulitic layers in Zaonega Formation, Karelia: new data from OnZap1 5. Petrography and the composition of apatite in the Paleoproterozoic Pilgujärvi Sedimentary Formation 6. Paleoproterozoic carbon isotope excursion: updating the evidence from the Fennoscandian Shield | KEYNOTE TALK 7. Global to continental-scale glaciations and their sedimentary record during the Archean-Proterozoic transition 8. Palaeoproterozoic Earth history: a proposed revision 9. Resolving history of the early Paleoproterozoic time 10. Mo and Os as indicators of atmospheric oxygenation: evidence from Paleoproterozoic black shales at Talvivaara, eastern Finland
POSTERS: |
S5.3 Proterozoic orogens |
Conveners: Mikko Nironen, Svetlana Bogdanova, Steffen Bergh Scheduled: Fri 10:30–12:00, Fri 14:00–14:30, Fri 15:00–15:30 Posters at display: Poster Session 2, Thu 15:00–16:00 Studying the evolution of Proterozoic orogens is a continuous task. Growing amounts of new isotopic, structural and geophysical data as well as analog and numerical modelling necessitate to refine the existing concepts for the individual orogenic belts. Moreover, interpretations of Phanerozoic orogens may generate fresh ideas for their Proterozoic counterparts. Typically, there exist several competing models and the new data may be in favour of either one. Proterozoic orogens also serve as reliable keys for the reconstruction of supercontinents and supercontinental cycles. Since the session covers a wide spectrum of geological research, we invite contributions in various fields of appraising Proterozoic orogens and their role in Earth's evolution.
TALKS: 1. Paleoproterozoic collisional history of northern Fennoscandia | KEYNOTE TALK 2. Gravitational Spreading of the Central Part of the Svecofennian Orogen 3. The Central Russian fold belt: Paleoproterozoic bondary of Fennoscandia and Volgo-Sarmatia, the East European Craton 4. The Precambrian crust in the Baltic Sea region 5. The Danopolonian orogeny: rotation of Baltica between 1.55 and 1.40 Ga 6. Tracing Proterozoic mantle Hf-isotope depletion through coupled zircon U–Pb and Lu–Hf isotopes 7. 1.90-1.88 Ga magmatism in central Fennoscandia: geochemical and Sm-Nd isotopic data from southern Finland 8. Is mafic magmatism a heat source for the high temperature metamorphism in southern Finland? 9. News of the Mauri sandstones
POSTERS: New bedrock geological map and database of Finland 1:1 000 000 The 1.83-1.80 Ga volcano sedimentary sequence in southern Lithuania: origin, evolution and correlation with south-central Sweden Titanite and zircon U-Pb ages from West Uusimaa complex, Finland, and implications to titanite geochronology Trans-Baltic Palaeoproterozoic correlations as a key to the Svecofennian orogeny Sveconorwegian albitites, Bamble Sector, S-Norway – new U/Pb geochronological and stable O-isotopic data 1.86 Ga granites in the Salo area, SW Finland Remnants of pre 1650 Ma sediments in the Western Gneiss Complex, Norway U-Pb SIMS dating of granitoids from eastern Blekinge, southern Sweden |
S5.4 Challenges in isotope dating of Precambrian terrains |
Conveners: Hannu Huhma, Martin Whitehouse Scheduled: Thu 14:00–14:30, Thu 16:00–17:00 Posters at display: Poster Session 2, Thu 15:00–16:00 The first age estimates of Precambrian rocks in Fennoscandia were obtained already half a century ago by Olavi Kouvo and Erik Welin. The results obtained showed a large range of ages and formed the basis for understanding the geological evolution, but many results were also ambiguous and introduced further questions. Since the setup of NORDSIM twenty years ago several problems in dating complex crustal history have been solved, but challenges still remain e.g. with rocks which don't carry zircon. Precise dating using the U-Pb system is still a key for many questions. Recently, large amounts of U-Pb data have been obtained by the ICPMS method, but what is the real precision and accuracy of the method compared to TIMS and SIMS and how should the non-specialist decide which of these complementary methods to use for any given project? Presentations and discussion on this field are welcome.
TALKS: 1. Isotope dating from a Nordic perspective – past, present and some thoughts about the future | KEYNOTE TALK 2. Re-Os and U-Pb gechronology – complementary systems 3. Dating the hidden Archaean bedrock of Kimberly South Africa 4. A new U-Pb baddeleyite age for the Ottfjället dolerite dyke swarm in the Scandinavian Caledonides – a minimum age for late Neoprotero-zoic glaciation in Baltica 5. The Varangerian/Marinoan glaciation in Scandinavia - new age constraints
POSTERS: |
S6 MARINE GEOLOGY |
S6.1 Marine geology |
Conveners: Thomas Andrén, Martin Jakobsson Scheduled: Fri 9:15–10:00, Fri 10:30–12:00 Posters at display: Poster Session 2, Thu 15:00–16:00
TALKS: 1. Marine base maps: Making seabed sediment mapping relevant for all 2. Large scale seafloor classification based on sediment quality guidelines 3. Societal needs and marine geological mapping in Finland - case Pyhäjoki 4. Geo-biointeractions in a fragmented seafloor area, the Eastern Gulf of Finland 5. Paleohighlights of IODP Expedition 347, Baltic Sea Paleoenvironment 6. Unconformities in the stratigraphic division of strata in a formerly glaciated semi-enclosed basin, the Baltic Sea 7. Holocene sedimentation processes in the Ångermanälven River estuary 8. Preliminary results of seabed investigations in the Baltic Sea and the Gulf of Finland 9. Radocarbon dating of Baltic Sea sediments
POSTERS: Seabed substrates and sedimentation rates of the European Seas – EMODnet Geology Long-term trends in coastal hypoxia in the Archipelago Sea of Finland – is it a natural phenomenon? Physical properties of glacial sediments from the Landsort Deep Iron and manganese in coastal sediments of the Gulf of Finland: relevance for methane dynamics Seabed sediment grain size prediction using multibeam backscatter data and spatial regression models |
S7 MINERALOGY |
S7.1 Mineralogy |
Conveners: Olav Eklund, Markku Lehtinen Scheduled: Thu 8:30–10:00 Posters at display: Poster Session 1, Wed 15:00–16:00 We welcome presentations in ore mineralogy, gem minerals including diamonds and indicator minerals, energy minerals, platinum group element minerals, rare earth element minerals, In-Ga-Ge minerals, phosphate minerals, carbonate minerals, Te-Se-Sb-Bi minerals, columbite-tantalite minerals, Li-minerals, meteorite minerals, biominerals, and new minerals .
TALKS: 1. Reconciling modal mineralogy and chemical compositions of a sample 2. The sulphide ores in the Alvdal-Tynset region, SE Norwegian Caledonides 3. Origin of gem and ore minerals obtained in gold sluicing in Finnish Lapland 4. Effects of Microstructures and Mineralogical Variables to the Thermal Shock Resistance of Carbonate Soapstone 5. The mineralogical characteristics that influence the functionality of “The ÅA Route” –carbonation method 6. FennoFlake: a project to find flake graphite ores in the Fennoscandian shield and utilize graphite
POSTERS: The crystal structure of blödite under extreme conditions and its implications to planetary mineralogy Overview of lithium pegmatite exploration in the Kaustinen area Flake graphite occurrences in a high-grade metamorphic region in Sortland (NW Norway) Mineralogy and applications of Sokli vermiculite Synthetic ikaite precipitation simulating conditions in Ikka Fjord, SW Greenland |
S8 PALAEOCLIMATOLOGY AND PALAEOECOLOGY |
S8.1 Palaeoclimatology: New insights from proxy data and palaeoclimate modeling |
Conveners: Aslaug Geirsdottir, Hans Petter Sejrup, Heikki Seppä, Siim Veski Scheduled: Wed 10:15–12:00, Wed 14:00–14:30 Posters at display: Poster Session 1, Wed 15:00–16:00 The climate in the North-Atlantic — Fennoscandian (NAF) region is highly dynamic. The region has experienced significant changes in sea level, ocean circulation, temperature, precipitation, snowfall and glacier extent. Many studies suggest that these changes in the NAF region may affect the global climate system, demonstrated for example by the inception of the Quaternary glaciation in the northern hemisphere, the Heinrich events, and the rapid climate changes during the last termination. This session will bring together contributions that deal with reconstructions and simulations of past climate both in the marine and continental domains based on palaeoclimate model output and proxy archives. Presentations are welcome on topics such as Pre-Quaternary and Quaternary palaeoclimatology, glacial and interglacial temperature patterns, palaeohydrology, abrupt climate changes, and climate-ecosystem interactions. We particularly encourage papers employing data-model comparisons to understand the mechanisms and forcings of past climate changes, comparisons of marine and continental data, and papers focusing on the application of new analytical techniques and novel proxies. We welcome relevant contributions from all parts of the world, but particularly want to support scientists focusing on palaeoclimate studies in the North-Atlantic — Fennoscandian region and in the adjacent regions in North Europe to present their results.
TALKS: 1. Palaeoclimate Modelling of the Late Quaternary: Challenges for the next decade | KEYNOTE TALK 2. Effects of melting ice sheets and orbital forcing on the early Holocene warming in extrattropical Northern Hemisphere 3. Palaeoclimatic indicators of the Holsteinian Interglacial in Eastern Europe in the light of research in the Polish-Belarusian cross border area 4. Past precipitation changes in Finland inferred from annually laminated lake sediments 5. Mid- to late Holocene aeolian activity recorded in a coastal dunefield and lacustrine sediments on Andøya, northern Norway 6. Novel Bayesian models for past climate reconstruction from pollen records 7. The preboreal retreat of the Iceland Ice Sheet (IIS) and Neoglacial landscape destabilization in the Central Highlands, West Iceland 8. Phytoplankton response to the environmental and climatic variability in a temperate lake over the last 14,500 years in eastern Latvia
POSTERS: From eutrophic towards hypertrophic - the story of southern Finnish lakes Re-coring Lake
Kråkenes: a high resolution lake archive of palaeohydrological variability
Plant macrofossil evidence for an early onset of the Holocene summer thermal maximum in northernmost Europe Sokli: a hotspot for climate change research in the North Atlantic region Dinoflagellate cysts as a sea-ice proxy – new insights from the Hudson Bay system Drivers of regional and local boreal forest dynamics during the Holocene Parameter correlations in paleoclimatics - PIXE, PIGE and RBS Major Cooling Intersecting Peak Eemian Interglacial Warmth in Northern Europe 7500 YEARS OF PINE TREE-RING ?13C VALUES FROM NORTHERN FINLAND Climate signals in tree-rings from the Norwegian Stave Churches |
S9 PALAEONTOLOGY — "LIFE ON EARTH" |
S9.1 Life-Earth Processes in Deep Time |
Conveners: Björn Kröger, Aivo Lepland Scheduled: Thu 10:30–12:00 Posters at display: Poster Session 1, Wed 15:00–16:00 Here the Astrobiology and Geobiology Groups should find a forum.
TALKS: 1. Tracing the Evolution of Oxygen on the Archean Earth | KEYNOTE TALK 2. The Ediacaran succession and fauna of the Digermulen Peninsula, northern Norway 3. Local environmental controls on microbial Fe(II)-oxidation in seafloor hydrothermal deposits 4. Microbiological research on the Nornahraun lava field 5. Origin of rod and dumbbell shaped phosphate precipitates in Namibian shelf sediments
POSTERS: The Ordovician reefs of Baltica Ancient ecosystems of crystalline bedrock fractures Magnetostratigraphic framework for the late Miocene mammalian fossils in Maragheh, NW Iran |
S9.2 What is the Anthropocene? |
Conveners: Mikael Fortelius Scheduled: Wed 14:00–14:30, Wed 16:00–17:30 Posters at display: Poster Session 1, Wed 15:00–16:00 Focus on Climate, Ecosystems, Society with a deep time perspective
TALKS: 1. The origin of the Anthropocene? Homo-induced collapse of East African carnivore guild, 2 mya. | KEYNOTE TALK 2. A Tale of Ice and Campfires: Changes in the carnivoran guild of Britain during the Quaternary period influenced by hominids and climate change 3. The chemical composition of the atmosphere in the Athropocene 4. Duality of Anthropocene 5. The Anthropocene; a formal stratigraphical unit, an informal concept, or an interval of Holocene time? 6. A Geologic Turn - Deep Time and Deep Futures in contemporary art 7. Summary
POSTERS: Co-occurrence of pliopithecoid and hominoid primates in the fossil record: an ecometric analysis |
S10 PETROLOGY |
S10.1 Petrology general |
Conveners: Tom Andersen, Tapani Rämö Scheduled: Wed 14:00–14:30, Wed 16:00–17:00 Posters at display: Poster Session 1, Wed 15:00–16:00
TALKS: 1. Enriched continental basalts from depleted mantle melts: the issue of lithospheric contamination | KEYNOTE TALK 2. Mesoproterozoic diabase in Death Valley, California 3. The Pushtashan ophiolite: New Evidences for Iraq Zagros Suture Zone, Kurdistan Region, NE Iraq 4. Magmatic age of the Norra Kärr alkaline complex determined by U–Pb and Lu–Hf isotopes of metasomatic zircon in fenite 5. Pilanesberg, South Africa: The “forgotten” alkaline complex
POSTERS: A general model for carbonatite petrogenesis in shallow alkaline intrusions Naujakasite revisited The stability of wöhlerite in agpaitic nepehline syenite: The effect of oxygen fugacity |
S10.2 Chronicles of petrological processes: In-situ geochemical studies of minerals and melts |
Conveners: Jussi Heinonen, Valentin Troll, Yann Lahaye, Hugh O'Brien Scheduled: Thu 10:30–12:00, Thu 14:00–14:30, Thu 16:00–17:00 Posters at display: Poster Session 1, Wed 15:00–16:00 Minerals and melt inclusions record an archive of magmatic and volcanic processes that are invisible at the whole-rock scale. Recent advances in micro-analytical in-situ techniques (e.g., LA-ICP-MS, SIMS, microdrilling) have revealed considerable trace element and isotopic diversity in crystal populations, individual crystals, and inclusions preserved within them. In-situ geochemical studies of minerals and chilled melts at microscopic scales have thus opened a new realm of detail in deciphering the evolution of igneous systems — up to the scale of the igneous evolution of planetary bodies. We invite contributions from igneous petrologists who have used in-situ geochemical analysis in their research of magmatic systems. We also welcome contributions that concentrate on the development of applications of these methods to frontier problems of igneous processes. The fields of research may also cover, e.g., estimations of pressures and temperatures of magmatic systems, deciphering volatile contents of magmatic inclusions, and determinations of ages of crystal populations. We hope that this session will draw the attention of a large group of forefront igneous petrologists and spur new and integrated studies of igneous systems.
TALKS: 1. Novel isotopic and geochemical applications of Secondary ion mass spectrometry | KEYNOTE TALK 2. Laser ablation Rb/Sr dating by online chemical separation in a reaction cell | KEYNOTE TALK 3. Augite and enstatite standards for SIMS oxygen isotope analysis and their application to Merapi volcano, Sunda arc, Indonesia 4. Composition and evolution of plume melts in the lower crust; Seiland Igneous Province 5. A novel approach to in-situ rutile thermochronology 6. Nano-powder tablets of mineral standards as matrix-matched reference materials for Rb-Sr dating 7. In-situ Sr isotope of plagioclase and its implication in the study of mafic layered intrusions 8. Micro drill sampling in in situ mineral analysis 9. Aillikite and Kimberlite Dike Emplacement as a Climax of Long-lived Magmatism in West Greenland 10. Reconstructing the plumbing system of Krakatau volcano
POSTERS: Chemical evolution of the Luumäki gem beryl pegmatite: Constraints from EPMA and LA-ICPMS mineral composition data Magmatic fractionation and episodic fluid exsolution of the Kymi topaz granite stock, SE Finland: Insights from biotite major and trace element chemistry |
S10.3 Recent developments in metamorphic geology |
Conveners: Pentti Hölttä, Francis Chopin Scheduled: Thu 9:00–10:00 Posters at display: Poster Session 1, Wed 15:00–16:00 The session is focused on recent advances in metamorphic geology, including thermodynamic modeling, microtectonics, numerical modeling, methods for dating metamorphic minerals and events and metamorphism and geodynamics in general.
TALKS: 1. CONTINENTAL CRUSTAL GROWTH AND CONSOLIDATION OF CRUST IN ACCRETIONARY AND COLLISIONAL OROGENS: TRANS-EUROASIAN PALEOZOIC SYSTEM | KEYNOTE TALK 2. Thermodynamics, isochemical and pseudobinary systems: applications to some practical problems including the atmospheric CO2 budged 3. Leucosome distribution method and geochemical melt modelling in Masku migmatites, SW Finland
POSTERS: Metamorphic map of Finland 40Ar/39Ar thermochronology of low-temperature alteration in a flood basalt pile during burial metamorphism |
S10.4 Mafic-ultramafic intrusions and related ore deposits: Petrology and origin |
Conveners: Tapio Halkoaho, Hannu Makkonen Scheduled: Wed 10:00–12:00 Posters at display: Poster Session 1, Wed 15:00–16:00 Mafic to ultramafic inrusions have been one of the most important metal sources for the mankind. Significant amounts of nickel, copper, chromium, titanium, vanadium, iron and platinum-group elements have been mined from deposits hosted by the mafic-ultramafic intrusions. Amount of these deposits in the Fennoscandian Shield is notable: the numerous old nickel mines in Norway represent the early history of mining, followed by the world-class Petsamo nickel-copper mines in Russia. In Finland the huge Kemi chromium deposit and Kevitsa Ni-Cu-PGE deposit are mined at present, Mustavaara and Otanmäki have produced vanadium, titanium and iron, many promising PGE-deposits are hosted by the ca 2.45 Ga mafic to ultramafic layered intrusions, and several Svecofennian (1.9 Ga) Ni-Cu deposits have been mined. The recent discovery of the Sakatti Ni-Cu-PGE deposit significantly raised the potential for new discoveries in northern Finland. This session introduces the varied and sometimes amazing origin of the mafic-ultramafic intrusions and related ore deposits around the world.
TALKS: 1. Mafic-ultramafic intrusions and related Ni-Cu-PGE deposits in the northern part of the Fennoscandian Shield | KEYNOTE TALK 2. Nickel sulfide deposits related to 1.88 Ga mafic-ultramafic magmatism in Fennoscandian and Canadian Shields 3. Characterization and origin of dunitic rocks in the Ni-Cu sulfide-bearing Kevitsa intrusion: whole-rock and mineral compositional constrains 4. Northern Fennoscandian komatiite-hosted Ni-Cu-PGE deposits: geochemistry and trace element composition of sulphides and oxides 5. Long duration (130 Ma), mantle reservoirs (EM-1, OIB, E-MORB and N-MORB) and multistages history for PGE-bearing Paleoproterozoic layered intrusions in the N-E part of Fennoscandian Shield. 6. Otanmäki and Vuorokas iron-titanium-vanadium oxide deposits, Eastern Finland 7. PGE reefs in the Penikat Layered Intrusion, Northern Finland
POSTERS: The Reinfjord Ultramafic complex; Petrology and Geochemistry Sulfide and platinum group mineralogy of massive sulfide ore in the Sakatti Cu-Ni-PGE deposit The Hunt for Platinum Group Elements in the Reinfjord Intrusive Complex The origin of internal reflectivity within the Kevitsa intrusion |
S10.5 Precambrian granitic systems of Fennoscandia: From genesis to emplacement |
Conveners: Aku Heinonen, Tapani Rämö Scheduled: Fri 9:00–10:00 Posters at display: Poster Session 2, Thu 15:00–16:00 Genesis, transport, and emplacement of granitic magmas are important but still in detail highly debated processes that have influenced the geochemical evolution and development of the continental crust. This session welcomes contributions from diverse backgrounds and approaches on petrology of granites and associated rocks with regional emphasis on or implications for Fennoscandian crustal evolution.
TALKS: 1. Formation mechanism and age of the Särkilahti garnet-cordierite leucogranite, SE Finland 2. Rapakivi texture in the Wiborg batholith 3. Zircon U-Pb ages and ?18O values from syenites and topaz granites of the Suomenniemi batholith 4. Polybaric crystallization of the Ahvenisto anorthosite
POSTERS: Net-veined and mafic pillow structues in the 1,64 Ga Ahvenisto complex, southeastern Finland. Three stages to form and stabilize an arc-collisional batholith – an example from the Svecofennian orogen Age of the late stage magmatic phases of the Ahvenisto rapakivi granite batholith The age of the Wiborg batholith |
S11 QUATERNARY GEOLOGY |
S11.1 Glacial geology – processes, deposits and landforms |
Conveners: Jan Piotrowski, Mark Johnson, Anne Hormes Scheduled: Wed 10:00–12:00, Wed 16:00–17:00 Posters at display: Poster Session 1, Wed 15:00–16:00 During the Quaternary much of the Northern Hemisphere has been repeatedly affected by ice sheets that contributed to erosion in the highlands, deposition in the lowlands and shaping the Earth's surface over distances of thousands of kilometres. Although the spatial extent of glacial deposits and landforms is well established, the knowledge of specific processes that created them is often fragmentary. We invite contributions dealing with all aspects of glacial sedimentology, glaciotectonics and geomorphology with emphasis on process interpretation. The topics may comprise but are not restricted to the origin and properties of glacial tills, water-laid glacial deposits, erosional landscapes and drumlins; interactions between the glaciers and their beds including the issue of fast ice flow and subglacial hydrology; and runoff and pro-glacial lake sedimentation. Studies of both modern and past glacial environments from all geographical regions are welcome. We encourage submissions that utilize innovative techniques to better understand glacial environments, such as drones, laser and radar scanning, time-lapse photography, new software, etc.
TALKS: 1. Active subglacial drumlins at Múlajökull, Iceland | KEYNOTE TALK 2. Conceptual model: Erosional origin of drumlins and mega-scale glacial lineations 3. Subglacial sediment homogenization by clast ploughing 4. The role of sub-glacial hydraulic conditions for the formation of fractures in basal tills, examples from recent Icelandic tills and Pleistocene tills in Denmark 5. Different styles of glaciotectonism during an active retreat of a marine terminating glacier - Examples from W-Iceland 6. Surge-type glaciers in Svalbard identified through remote sensing 7. Rates of glacio-isostatic uplift as an age modelling tool 8. Holocene glacier extent and ELA reconstructions of paleoglaciers in Sarek National Park, northern Sweden 9. Glacial sequence stratigraphy reveal the Weichselian glacial history of the SE sector of the Eurasian Ice Sheet 10. Spatial changes in distribution of suspended matter from the tidewater glacier in Hansbukta, Hornsund Fjord (Spitsbergen) 11. Combining terrestrial and marine glacial archives – a geomorphological map of Nordenskiöldbreen forefield, Svalbard
POSTERS: Provenance of glacial sediments by detrital geochronology from Kapp Ekholm, Svalbard Thickness of superficial deposits in Finland Microtextural and heavy mineral constraints on the oscillations of the late Pleistocene Scandinavian Ice Sheet Evolution of saltwater intrusions in coastal aquifers during the past and the future Internal structure and drainage conduits in a cold Svalbard glacier Glacial landscapes carved by subglacial meltwater erosion under the Scandinavian Ice Sheet |
S11.2 Glacial history of Scandinavia |
Conveners: Juha Pekka Lunkka, Antti Ojala Scheduled: Thu 10:30–12:00, Thu 14:00–14:30, Thu 16:00–17:15 Posters at display: Poster Session 1, Wed 15:00–16:00 During the past decade a significant amount of new data have been generated to unravel the glacial history of Fennoscandia, an area that has been repeatedly covered by the Scandinavian Ice Sheet. In this session, we invite presentations focusing on the overall history, dynamics, ice extent, and timing of the Scandinavian Ice Sheet during the Pleistocene. We also welcome contributions on reconstructions and modelling of the growth and decay of the Scandinavian palaeo-ice sheet through time and its effect on climate and sea-level fluctuations and glacioisostasy.
TALKS: 1. The Scandinavian Ice Sheet - History and dynamics | KEYNOTE TALK 2. A new Middle Pleistocene interglacial occurrence in Copenhagen, Denmark 3. Early Weichselian glacial history in western Finland 4. OSL dating of Weichselian ice-free periods at Skorgenes, western Norway 5. Sequential development of Jutulhogget canyon, southern Norway 6. Deglaciation of the southwestern Scandinavian Ice Sheet using 10Be dating 7. Extent and timing of the Late Weichselian Scandinavian ice-sheet maximum and the following deglaciation in northern Atndalen, east-central southern Norway 8. Dynamics of and controls on post-Younger Dryas retreat of a Bothnian Sea ice stream 9. What really happened during Salpausselkä fornation 10. Fluctuations of the Scandinavian Ice Sheet during Bølling-Younger Dryas were very different in Western Norway compared with Sweden-Finland 11. Dating the collapse of the Scandinavian Ice Sheet using CH4-derived carbonate crusts from the Barents and Norwegian Seas 12. Jan Mayen - The Pleistocene-Holocene glacial history of an active volcanic island
POSTERS: DATED-2: updates to the Eurasian ice sheet chronology and time-slice reconstructions Lake Nordlaguna, Jan Mayen: the potential for a palaeoclimate record from the island |
S11.3 Recent developments in Quaternary dating methods |
Conveners: Markku Oinonen Scheduled: Wed 14:00–14:30 Posters at display: Poster Session 1, Wed 15:00–16:00 The Quaternary period spanning the last 2.5 million years has been characterized by oscillation between glacial and interglacial phases. Versatility of the environmental conditions throughout the period has yielded to an equally versatile set of chronological methods to obtain time spectra of Quaternary events. Variety of methods have developed from a mainly technical advances to quantitative analysis tools of even Bayesian nature and this all has supported the rise of transdisciplinary research. This session provides a platform for scientists to present their results related to dating methodologies and chronological tools concerning the Quaternary period.
TALKS: 1. Finding a good place to date 2. Bayesian chronological tools in event reconstruction – case study of Vuoksi breakthrough
POSTERS: Trondheim radiocarbon laboratory – performance results and future plans Askja 1875 tephra in lake sediment in Southern Finland Quantifying the Past Present and Future at the Laboratory of Chronology Cosmogenic surface exposure dating with 36Cl on Jan Mayen |
S12 SEDIMENTOLOGY |
S12.1 Sedimentology |
Conveners: Kari Strand, Martin Jakobsson, Jan Sverre Laberg, Matthias Forwick Scheduled: Fri 14:00–14:30, Fri 15:00–15:45 Posters at display: Poster Session 2, Thu 15:00–16:00
TALKS: 1. On the evolution of glaciated continental margins 2. Last glacial ice sheet dynamics and deglaciation on Svalbard inferred from fjord records 3. Provenance analysis of the Late Glacial – Holocene SW Barents Sea sediments 4. Reservoir Quality of Jurassic Sandstones within the Johan Castberg Field in the Barents Sea. 5. Palaeogeography of the main carbonate reservoir of the Barentshavet Sea, the Late Carboniferous-Early Permian Gipsdalen Grou.
POSTERS: The Early to Middle Cenozoic paleoenvironment and sediment yield of the southwestern Barents Sea margin |
S13 STRUCTURAL GEOLOGY, TECTONICS AND VOLCANISM |
S13.1 Burial, uplift and exhumation of Scandinavia and surrounding regions: Timing, magnitude and mechanisms |
Conveners: Peter Japsen, Ola Fredin, Sofie Gradmann Scheduled: Fri 10:30–12:00, Fri 14:00–14:30, Fri 15:00–16:15 Posters at display: Poster Session 1, Wed 15:00–16:00 Understanding the vertical movements of the earth's crust is one of the most exciting in modern-day geoscience. In our region, the debates have been focused on the age and origin of the Norwegian mountains, but clearly, our understanding of vertical movements and onshore-offshore relations of the entire region are of importance for deciphering the underlying processes; e.g. the Norwegian margin, Svalbard, the Barents Sea, the Danish Basin as well as areas that are traditionally considered as stable cratons such as Sweden and Finland — not to mention Iceland and Greenland. In this session we aim at providing a forum for the uplift debate based on observations and on geodynamical models that may demonstrate the active mechanisms behind these enigmatic movements. We welcome presentations about the burial and exhumation history of the region, about interpretation of the large-scale landscapes, about the timing and nature of weathering processes and about mechanisms that may explain the observations.
TALKS: 1. The Norwegian strandflat: Insights into an old weathering front | KEYNOTE TALK 2. The Scandinvian highlands and Miocene to Pliocene sea levels 3. Uplift and faulting of the Utsira High basement: evidence from low-T thermochronology 4. Burial and exhumation history of southernmost Norway estimated from apatite fission-track analysis data and geological constraints 5. Uplift Record in Hydrocarbons and Sulphides in South Norway 6. Phanerozoic denudation across the Kola Peninsula 7. Mass-balance of an Induan (Early Triassic) Fennoscandian-derived sedimentary fan in the Barents Sea: Implications for early Triassic landscape and exhumation 8. Burial stress and burial strain 9. 3D Stress Modelling of a Neotectonically Active Area in Northwestern Norway 10. Process-oriented gravity modelling of the Northern Scandes 11. Isostatic and dynamic support of high passive margin topography in southwestern Scandinavia 12. “For the mountains may be removed and the hills may shake…”
POSTERS: |
S13.2 Dynamics and evolution of the lithosphere from Archean to present |
Conveners: David Whipp, Giampiero Iaffaldano Scheduled: Thu 14:00–14:30, Thu 16:00–17:30 Posters at display: Poster Session 1, Wed 15:00–16:00 Modern mountain systems provide the foundation for our understanding of ancient orogens, where information available to understand their evolution is limited. However, the present-day form of Plate Tectonics may not have existed earlier in Earth's history when the interior of the Earth was hotter and key tectonic features such as subduction zones may have differed from their current form. Thus, in order to understand the potential differences in tectonic styles, ancient orogens that form the shield areas of many continents require detailed study using a wide variety of methods. In this session, we invite presentations focussing on the evolution of the lithosphere of modern as well as ancient orogens. We welcome contributions on the dynamics of plate motions and the resulting orogeny that use (i) numerical and analogue modelling, as well as (ii) geological and/or geophysical laboratory- and field-based methods.
TALKS: 1. Plate Tectonics: Past and Present | KEYNOTE TALK 2. Garnet: a key to unraveling Earth's dynamic lithosphere 3. Orogen-parallel mass transport along the arcuate Himalayan front into Nanga Parbat and the western Himalayan syntaxis 4. Rheological behaviour on the crust of the northern Fennoscandian shield 5. Structural and geochronological studies on the crustal-scale Pajala deformation zone 6. Evolution of the Crustal Structure of the Svecofennian Orogen 7. Crustal conductors in a complex accretionary Svecofennian orogen in Fennoscandia
POSTERS: Controls on continental strain partitioning above an oblique subduction zone, Northern Andes Structural framework of Paleoproterozoic rocks northeast of Kiruna, Sweden Monazite and Zircon Dating of the plagiogranites in the Mawat Ophiolite Complex, NE Iraq. The rock matrix: formation and evolution of rocks in polyphase metamorphic basements |
S13.3 The evolution and architecture of rifts and rifted passive margins: observations and modelling |
Conveners: Ritske Huismans, Arto Luttinen, Jarmo Kohonen Scheduled: Wed 10:00–12:00, Wed 14:00–14:15, Fri 15:00–15:15 Posters at display: Poster Session 1, Wed 15:00–16:00 The formation of rifted continental margins by extension of continental lithosphere leading to seafloor spreading is a complex and still poorly understood component of the plate tectonic cycle. New observations and modelling allow us to investigate the underlying processes. Key questions that need to be resolved include 1) factors that control the geometry and crustal architecture or rifted margins, 2) the role of strain localisation and strain partitioning throughout the rift history, 3) processes responsible for anomalous vertical motions during basin evolution such as phase changes or small scale convective instability of the mantle lithosphere, 4) fundamental controls on the magmatic or a-magmatic nature of rifts and passive margins, 5) interaction between surface processes, tectonics, and climate during rift-passive margin evolution. We encourage abstracts that offer new insights into crustal and lithospheric architecture and processes underlying rifting and passive margin formation as well as smaller scale studies of individual sedimentary basins, using constraints from observations and modelling.
TALKS: 1. How to form hyperextended continental margins | KEYNOTE TALK 2. Splitting continents: Lessons from Afar | KEYNOTE TALK 3. Results and regional context of outcrop samples and shallow cores on the outer continental margin of the Norwegian Sea 4. Coupling of mantle and flood basalt provinciality in continental rifts: example from Karoo-Ferrar LIP 5. Long-term coupling and feedbacks between surface processes and tectonics during rifting 6. Preferential development of extension-orthogonal basins in oblique continental rifts 7. A dissected central volcano at Bíggjarskor, Faroe Islands 8. Sedimentary rock record and rapakivi granite emplacement as components of rift basin evolution model
POSTERS: |
S13.4 Imaging and modelling geological structures from microscopic to orogen scales |
Conveners: Mohammad Sayab, Pietari Skyttä, Jussi Mattila Scheduled: Thu 10:30–12:00, Thu 14:00–14:30, Thu 16:00–17:15 Posters at display: Poster Session 2, Thu 15:00–16:00 Modern imaging methods at different scales allow the quantitative characterization of bedrock, offering new opportunities to model geological structures in 3-D. A range of 2-D and 3-D methods have been developed to visualize nanoscale textures in rocks to orogen scale structures. For example, lab- and synchrotron based X-ray computed micro- and nanotomography are emerging techniques to precisely image the interior of rock volumes in 3-D. On the other hand, ''structure from motion'' based aerial photogrammetry, airborne LiDAR and terrestrial laser scanning, high-resolution geophysical (gravity and magnetic) images and seismic profiles are popular imaging tools in geological mapping and 3-D modeling. We solicit contributions to this session on imaging technologies from field-based, experimental, analogue and numerical research at all scales. Advancements in analytical imaging techniques (e.g., SEM, EPMA, LA-ICP-MS) related to microtectonics are also welcome!
TALKS: 1. Imaging rock deformation on multiple scales: advances in better understanding heterogeneous deformation | KEYNOTE TALK 2. Seismic investigations in the central Swedish Caledonides 3. Exposed and blind, multiphase, mafic dykes in the Caledonides of northern Finnmark revealed by a new high-resolution aeromagnetic dataset 4. Trialing the anisotropy of magnetic susceptibility (AMS) to determine the West Spitsbergen Fold-and-Thrust Belt Palaeostress pattern 5. The Scandian folds on the Paleozoic sedimentary cover of Estonia 6. Rock mechanics characteristics of fault zones and their effect for designing underground facilities | KEYNOTE TALK 7. Seismic images providing glimpse into the deep geology of Pyhäsalmi mining district in Finland 8. Detail scale in situ fracture modelling of excavation damage zone 9. Deformation phases delinated by AMS in high-grade migmatites, Olkiluoto, SW Finland 10. The tectono-metamorphic evolution of basement rocks as revealed by combining optical, 3D neutron diffraction and x-rays synchrotron microstructural analyses 11. Characterizing ore textures by combining synchrotron-based X-ray 3-D nanotomography and LA-ICP-MS analyses: Insights from the Suurikuusikko orogenic gold deposit, Finland
POSTERS: Use of terrestrial laser scan data in detailed geological structure mapping: a case study from Vekara, SW-Finland Characterization and 3D -modelling of the brittle structures in Westmetro tunnels |
S13.5 Impact cratering as a geological process |
Conveners: Stephanie Werner, Argo Joeleht, Lauri J. Pesonen Scheduled: Thu 10:30–12:00 Posters at display: Poster Session 1, Wed 15:00–16:00 Impact cratering has significantly contributed to the formation and reshaping of planetary bodies in our Solar System, including planet Earth. Impact cratering is a process that has affected the geological environment throughout the evolution of our planet at different scales and times. We invite presentations that are related to all geological aspects of impact cratering. These may include the formation processes of impact structures in various target platforms such as water, ice, sedimentary cover or crystalline rock. Topics related to defining the projectile type, understanding the existence of doublet craters on Earth and defining the geophysical, geochemical, petrophysical, mineralogical and isotope characteristics of terrestrial impact structures are also included. Discussions on shock metamorphism phenomena, post-impact hydrothermal processes as well as field and remote sensing case histories with multidisciplinary approaches, are welcome.
TALKS: 1. Postimpact crater sedimentation in marine-target impact structures. 2. The Lockne – Målingen doublet impacts, the result of a binary asteroid from the 470 Ma Main Asteroid Belt Event 3. Comparing methods to estimate the decay rate of fracturing away from impact centers 4. Impact cratering model of the Chelyabinsk meteoroid formation 5. Post-Impact Modification of Craters on Titan by Aeolian and Fluvial Processes : Lessons from Earth Analogs 6. ASPECT CubeSat mission to a binary asteroid
POSTERS: Deep subcrater shock effects in large terrestrial impact structures On the Scaling of Small Impact Craters on the Moon Shock-darkening in ordinary chondrites: impact modelling Reflection seismics of the Dobele impact crater, Latvia Söderfjärden impact crater, new results and new drilling plan Inverted Structure of Suevites at Bosumtwi Crater: Implications to Mixing of Outer Suevites Reflectance spectra of meteorites and asteroids – new results and applications? Geological overview of the Ritland impact structure |
S13.6 Interactions between climate, erosion and tectonics |
Conveners: Anu Kaakinen, David Whipp Scheduled: Fri 8:45–10:00 Posters at display: Poster Session 2, Thu 15:00–16:00 Climate, erosion and tectonics have been proposed to interact on a number of spatial and temporal scales, notably through (1) the couplings between orographic precipitation, focussed erosion and tectonic activity predicted by numerical models of active mountain systems, and (2) the global-scale feedbacks between physical and chemical weathering, consumption of carbon dioxide and Cenozoic climate cooling. These provocative hypotheses have attracted great scientific interest, but definitive evidence of the causal relationships between these processes has been difficult to find both in the field and laboratory. In this session, we invite presentations from researchers studying the relationships between climate, erosion and tectonics at all spatial and temporal scales using numerical, laboratory and field-based methods.
TALKS: 1. A field perspective on the role of creep processes for development of high altitude low relief surfaces 2. Glacial striations from the Varangerian glaciation in South Norway 3. Dust trajectory changes over the Loess Plateau due to regional mountain uplift 4. Variations in the Provenance of the Late Neogene Red Clay in Northern China 5. Tectonic controls of the eolian deposits in Chinese Loess Plateau
POSTERS: A fluvial facies in the Mesoproterozoic Dala sandstone. Preliminary results from the Moberget quarry, west-central Sweden. Noble gas geochronology: new tools for constraining the landscape evolution of Scandinavia |
S13.7 Supercontinents through time |
Conveners: Lauri J. Pesonen, Åke Johansson, Johanna Salminen Scheduled: Wed 10:00–12:00 Posters at display: Poster Session 1, Wed 15:00–16:00 The present-day Earth as we see it with its continents and oceans is just a snapshot in time of a continuously evolving planet. It is now clear that there have been several supercontinents throughout its history prior to Wegener's Pangaea: Neoproterozoic Rodinia, late-Paleoproterozoic-Mesoproterozoic Columbia/Nuna and perhaps the late Archaean Kenorland. To the present session “Supercontinents through time” we invite oral presentations or posters on geological, geophysical or isotopic hints of ancient supercontinents, making reconstructions of supercontinents as based on palaeomagnetics, geological or isotope age correlations, or (ideally) integrating these approaches. We also invite contributions on the processes behind supercontinent formation and break-up: plate tectonics, plume tectonics, and underlying mantle geodynamics, as well as questions about growth, evolution and destruction of continental crust.
TALKS: 1. The inner core nucleation of the Earth and its paleogeographic implications 2. Unknown details of Palaeoproterozoic evolution of the Karelian Craton: new U-Pb and geochemical data for mafic dykes 3. Paleomagnetism of the Keuruu dyke swarm with implications for Nuna supercontinent 4. Testing the core of the Proterozoic Supercontinent Nuna 5. From Nuna to Rodinia: Stenian-Tonian paleogeography 6. Did the Grenville – Sveconorwegian belt go north? 7. Exploring the hidden Rodinia: crustal xenoliths of Vestfjella, Dronning Maud Land, Antarctica 8. Paleogeographic evolution of the late Neoproterozoic and early Phanerozoic with new paleomagnetic constraints from West African Craton
POSTERS: Testing the core of the Proterozoic Supercontinent Nuna Geomagnetic Field at the Mesoproterozoic - Geocentric Axial Dipole? |
S13.8 Volcanology |
Conveners: Heidi Soosalu, Erik Sturkell Scheduled: Fri 14:00–14:30, Fri 15:00–16:00 Posters at display: Poster Session 2, Thu 15:00–16:00 The open session of volcanology invites all disciplines in this field, from physical volcanology, tephrochronology, geophysics, petrology and more. The session embraces all aspects of volcanology. If there will be floods of abstracts we will sub-divide in several sessions! Since the last winter meeting, 59 eruptions has been reported in the world (according to the Smithsonian Institution). The largest one was Holuhraun in Iceland, extruding almost 2 km3 of lava.
TALKS: 1. The role of volatiles in the formation of basaltic to kimberlitic maar-diatreme volcanoes, and its wider implications | KEYNOTE TALK 2. Episodic propagation of the 2014 Bárðarbunga-Holuhraun dyke intrusion, Iceland 3. Volcano-tectonic interplay at the Askja volcanic system, Iceland: Finite element modeling constrained by geodetic measurements 4. 40Ar/39Ar dating basaltic melt segregations in Reykjanes Peninsula, SW Iceland 5. Multi-disciplinary approaches to studying volcanic plumbing systems – a Nordic case study
POSTERS: Askja 1875 tephra in lake sediment in Southern Finland Explosive volcanism in Iceland between 8000 and 60.000 years as expressed by tephra layer frequency in marine sediments Tephra in the effusive Bárðarbunga 2014-2015 eruption, Iceland Origin of the Lake Natron Footprint tuff, northern Tanzania |
S15 STAND-ALONE SESSIONS |
S15.1 Applied 3D and 4D modelling in geosciences |
Conveners: Tobias Bauer, Tero Niiranen Scheduled: Fri 10:30–12:00, Fri 14:00–14:30 Posters at display: Poster Session 2, Thu 15:00–16:00 Implicit modelling, explicit modelling, prospectivity modelling, uncertainty modelling, structural modelling, geophysical modelling, modelling of mineralized systems and belts, new methods in 3D-modelling and digital field mapping
TALKS: 1. The significance of recognizing the structural setting within the context of geological 3D-modelling | KEYNOTE TALK 2. 2D and 3D Resistivity Models From Magnetotelluric Measurements North East of Kiruna, Sweden 3. 3D-Norge: a new project to build a nationwide 3d bedrock map of Norway 4. Porosity, Permeability, Thermal Properties of clastic rocks. A case study in Stenlille Structure, Denmark. 5. Regional-scale 3D temperature distribution beneath the northern North Sea and adjacent areas of the continent according to lithosphere-scale 3D thermal modelling 6. 3D petrographic imaging and diagenetic modelling of reservoir formations 7. Talsinkifix – new challenges for engineering geologists
POSTERS: Geological 3D modeling of clastic rocks. A case study in Stenlille Structure, Denmark. 3D brittle and lithological models of Olkiluoto Kersilö database and its applications within the ice divide zone of Finnish Lapland High-performance geoscientific computing in multi-scale mineral potential studies |
S15.2 LIDAR in geology |
Conveners: Antti Ojala, Jukka-Pekka Palmu Scheduled: Wed 16:00–17:00, Thu 9:00–10:00 Posters at display: Poster Session 1, Wed 15:00–16:00 Glacial morphology and landforms, postglacial faults and other bedrock structures
TALKS: 1. Distribution and annual-origin of De Geer moraines in Sweden with insights from LiDAR | KEYNOTE TALK 2. Occurrence of De Geer moraines in Finland based on LiDAR DEM 3. The aeolian dunes of Bonäsheden, central Sweden: a geomorphological, geophysical and geochronological case study 4. Structural geology of the Naamivitikko and Riikonkumpu postglacial fault scarps in Finnish Lapland 5. Pattern recognition of mass-flow deposits from airborne LiDAR 6. Timing of paleoseismicity in western Finnish Lapland 7. LiDAR –based interpretation of deglacial dynamics in SW Finland
POSTERS: Appearance of PGFs in Finland – case Lauhavuori Distribution of the fine-grained sediments in Helsinki metropolitan area, Finland LiDAR-based geomorphological mapping and Quaternary stratigraphy in the Sodankylä region, northern Finland Characterization of Riikonkumpu fault scarp in Kittilä |
S15.3 Arctic research |
Conveners: Anne Lehtinen, Jon Engström Scheduled: Fri 14:00–14:30, Fri 15:00–16:00 Posters at display: Poster Session 2, Thu 15:00–16:00 Arctic science is at the moment a very hot issue although the science is done in cold environment. To promote the knowledge about this topic we seek for abstract across the whole cryosphere research field from permafrost studies to research on glaciers. We welcome abstracts from the whole arctic Nordic region, but other studies with focus of ice-sheets and frozen ground is also welcome. We encourage submissions from multidisciplinary research within all aspects in geology, geophysics, geomorphology and hydrology from the fascinating field of arctic research.
TALKS: 1. Monitoring the Greenland ice sheet | KEYNOTE TALK 2. Groundwater flow and solute transport modelling in coupled permafrost-hydrogeological systems 3. Electromagnetic study of deep permafrost in Central West Greenland 4. Geological description of the DH-GAP04 borehole, Kangerlussuaq, Central West Greenland 5. Hydrogeological and hydrogeochemical bedrock conditions under an ice sheet, Kangerlussuaq, Central West Greenland
POSTERS: Active rock glaciers at sea level in Finnmark, Northern Norway? |
S15.4 Nordic collaboration |
Conveners: Tapani Rämö Scheduled: Fri 9:30–10:00 Posters at display: Poster Session 2, Thu 15:00–16:00
TALKS: 1. NordVulk: Nordic Collaboration in Volcanology and Related Fields
POSTERS: IGCP – International Geoscience Program – funding international networking in research |