FEDERATIO N O F FIN N ISH LEARN ED SO C IETIES Delegation of the Finnish Academies of Science and Letters 32nd Nordic Geological Winter Meeting Helsinki, 13–15 January, 2016 Editors: Stratos Staboulis Toni Karvonen Antti Kujanpää Conference website: http://www.geologinenseura.fi/winter_meeting/ Welcome to Helsinki We warmly welcome you to the Science Campus of the University of Helsinki on the occasion of the 32nd Nordic Geological Winter Meeting! The Geological So- ciety of Finland and the University of Helsinki are proud to organize this meeting. Since the first Nordic Geological Winter meeting held in Gothenburg, Sweden in 1954, this gathering has transformed into a strong tradition that combines geosci- entists from all the Nordic countries. The meeting covers a wide range of topics and offers an appreciated venue for presenting research, networking, and meeting old and making new friends. The 32nd NGWM offers an intensive programme that comprises 13 sym- posia divided into 41 sessions, as well as four stand-alone sessions. During the three days of the meeting, parallel sessions are held in seven lecture rooms. In mid-afternoons, the programme is devoted to poster sessions, which offer the possibility to discuss various geoscientific topics at the poster stands. We have invited three plenary talks that represent exciting new scientific re- sults and compilations of existing data. On Wednesday, Ritske Huismans will discuss lithosphere deformation and the formation of sedimentary basins. On Thursday, Anna Hughes will present a new compilation and synthesis of the deglaciation of the last Eurasian Ice Sheet. The third plenary talk will be given on Friday by the winner of the Nordic Geoscientist award. The prize was awarded for the first time in Reykjavik at the 30th NGWM in 2012 to Haakon Fossen, struc- tural geologist from Bergen, Norway. The winner at the second time, delivered at the 31st NGWM held in Lund in 2014, was Stefan Bengtson from the Swedish Museum of Natural History, Stockholm. This year’s winner will be announced at the banquet on Thursday evening. The organization of the 32nd NGWM has required one full year of prepara- tion, and a large group of people has been involved in the process. Especially, we would like to thank the Scientific Programme Committee for creating a great programme, the assigned conveners for promoting exciting sessions, the plenary speakers for their commitment, and the many sponsors who have made this event financially possible. We would also like to thank Toni Karvonen, Antti Kujan- pää, and Stratos Staboulis from Parsity Partnership for organizing registration, the conference web site, the abstract volume, and many other practicalities. We hope that the 32nd Nordic Geological Winter Meeting will be successful, lead to new insights into the rapidly evolving fields of geosciences, and enhance pertinent Nordic collaboration. Sincerely, The Organizing Committee of the 32nd NGWM 3 32nd Nordic Geological Winter Meeting Helsinki, 13–15 January, 2016 Organizing committee Juha Karhu University of Helsinki, Finland Anu Hakala Geological Society of Finland Jussi Heinonen University of Helsinki, Finland Annakaisa Korja Geological Society of Finland Seija Kultti University of Helsinki, Finland Raimo Lahtinen Geological Survey of Finland Tapani Rämö University of Helsinki, Finland Sakari Salonen University of Helsinki, Finland Veli-Pekka Salonen University of Helsinki, Finland Geological Society of Finland (Suomen Geologinen Seura ry) Address: P.O. Box 64 (Department of Geosciences and Geography) University of Helsinki, 00014, Finland Website: http://www.geologinenseura.fi Registration, conference website and the book of abstracts by Parsity Partnership http://www.parsity.fi 4 Scientific committee Tapani Rämö (chair) University of Helsinki, Finland Veli-Pekka Salonen (vice chair) University of Helsinki, Finland Toni Eerola Geological Survey of Finland Olav Eklund Åbo Akademi, Finland Eero Hanski University of Oulu, Finland Hannu Huhma Geological Survey of Finland Juha Karhu University of Helsinki, Finland Annakaisa Korja Geological Society of Finland Kirsti Korkka-Niemi University of Helsinki, Finland Aarno Kotilainen Geological Survey of Finland Björn Kröger University of Helsinki (Museum), Finland Ilmo Kukkonen University of Helsinki, Finland Raimo Lahtinen Geological Survey of Finland Jussi Leveinen Aalto University, Finland Arto Luttinen University of Helsinki (Museum), Finland Vesa Nykänen Geological Survey of Finland Heikki Seppä University of Helsinki, Finland Pietari Skyttä University of Turku, Finland Kari Strand University of Oulu (Thule Institute), Finland Thomas Wagner University of Helsinki, Finland 5 6 Table of contents 32nd Nordic Geological Winter Meeting program and abstracts Table of contents 1 Venue information and general schedule ....................... 11 Venue information ................................... 12 Social program .................................. 12 Hotspots of the conference ............................ 12 Map of Kumpula Campus and its surroundings ................... 13 Floor maps of Kumpula Campus ......................... 14 Lunch and coffee options ............................. 17 List of minisymposia and sessions ........................... 18 Timetable — Wednesday, January 13 .......................... 20 Timetable — Thursday, January 14 ........................... 21 Timetable — Friday, January 15 ............................ 22 2 Plenary talks ........................................ 25 3 Scientific programme ................................... 29 Parallel session — Wednesday morning ........................ 30 Parallel session — Wednsesday afternoon ....................... 34 Parallel session — Wednesday evening ......................... 36 Parallel session — Thursday morning 1 ........................ 39 Parallel session — Thursday morning 2 ........................ 42 Parallel session — Thursday afternoon ......................... 45 Parallel session — Thursday evening .......................... 46 Parallel session — Friday morning 1 .......................... 49 7 Parallel session — Friday morning 2 .......................... 51 Parallel session — Friday afternoon .......................... 54 Parallel session — Friday evening ........................... 56 Poster session 1 ..................................... 58 Poster session 2 ..................................... 63 4 Abstracts .......................................... 69 S1.1 Geohazards in the Nordic and Arctic regions ................... 71 S1.2 Hydrogeology ................................... 78 S1.3 Mining and the environment: Towards socially and environmentally acceptable mining .......................................... 83 S1.4 Geoenergy ..................................... 88 S1.5 Nuclear waste disposal .............................. 92 S1.6 Weathering and Alteration processes of Rocks and Minerals . .......... 96 S1.7 Environmental geology ..............................101 S2.1 Critical metals — petrology, geochemistry and ore geology . ..........107 S2.2 Fluid and melt processes in the Earth .......................116 S2.3 Geochemical and geophysical exploration methods ................120 S2.4 Precambrian metallogeny .............................124 S3.1 Geoscience outreach ................................138 S3.2 Higher education in geosciences: Experiences, practices and development . 143 S4.1 Drilling projects ..................................148 S5.1 Archean of the Fennoscandian shield: From bits and pieces towards a bigger picture ..........................................151 S5.2 Archean-Proterozoic transition ..........................154 S5.3 Proterozoic orogens ................................161 S5.4 Challenges in isotope dating of Precambrian terrains ...............170 S6.1 Marine geology ..................................174 S7.1 Mineralogy ....................................181 S8.1 Palaeoclimatology: New insights from proxy data and palaeoclimate modeling . 187 8 S9.1 Life-Earth Processes in Deep Time ........................196 S9.2 What is the Anthropocene? ............................201 S10.1 Petrology general .................................205 S10.2 Chronicles of petrological processes: In-situ geochemical studies of minerals and melts ........................................210 S10.3 Recent developments in metamorphic geology . ..............217 S10.4 Mafic-ultramafic intrusions and related ore deposits: Petrology and origin . 221 S10.5 Precambrian granitic systems of Fennoscandia: From genesis to emplacement . 228 S11.1 Glacial geology — processes, deposits and landforms .............232 S11.2 Glacial history of Scandinavia ..........................241 S11.3 Recent developments in Quaternary dating methods ..............248 S12.1 Sedimentology ..................................251 S13.1 Burial, uplift and exhumation of Scandinavia and surrounding regions .....255 S13.2 Dynamics and evolution of the lithosphere from Archean to present ......261 S13.3 The evolution and architecture of rifts and rifted passive margins ........268 S13.4 Imaging and modelling geological structures from microscopic to orogen scales273 S13.5 Impact cratering as a geological process .....................281 S13.6 Interactions between climate, erosion and tectonics . ..............289 S13.7 Supercontinents through time ..........................294 S13.8 Volcanology ...................................300 S15.1 Applied 3D and 4D modelling in geosciences ..................304 S15.2 LIDAR in geology