PROCEEDINGS ASM2018 Proceedings Table of Contents Oral Presentations p. 2 Poster Presentations p. 200 ASM2018 Proceedings Oral Presentations Oral Presentations POST-GLACIAL CLIMATIC AND TRACE ELEMENTS IN SELECTED PERMAFROST- ENVIRONMENTAL CHANGES IN THE FURY AFFECTED SOILS OF NEAR-NATURAL AND AND HECLA STRAIT REGION BASED ON ANTHROPOGENICALLY-AFFECTED SITES OF BIOLOGICAL AND GEOCHEMICAL PROXIES YAMAL REGION Adaïmé, Marc-Elie (1,2) (
[email protected]) Alekseev, Ivan (1) (
[email protected]) and E. and R. Pienitz (1,2) Abakumov (1) (1) Université Laval, Québec QC, Canada (1) Saint Petersburg State University, Saint Petersburg, (2) Centre d’études nordiques (CEN), Québec QC, Canada Russia Located between the Melville Peninsula and Soil is an important component of polar ecosystems northwestern Baffin Island in the Canadian Arctic, the and plays a key role in their functioning. Soils implement Fury and Hecla Strait region has experienced major significant role in processes of accumulation, mobilization, environmental shifts since the end of the last ice age redistribution of chemical, and especially, trace elements followed by glacial retreat (7000 cal. BP approx.). in landscapes and ecosystems. Both anthropogenic impact Triggered by post-glacial processes (including marine and climate change may affect biogeochemistry of soils inundation and glacio-isostatic uplift), geomorphological in permafrost-affected landscapes, which are considered changes and climatic fluctuations (that shaped the region as highly sensitive to climate change and anthropogenic throughout the Holocene) have been recorded in marine forcing. Involvement of additional portions of trace and lake sediments. By analyzing sediment cores of elements into the soils due to permafrost degradation and different lakes in the region using a multi-proxy approach, thawing is considered as one the main risk factors for our study provides a high-resolution reconstruction of the natural environments in polar regions.