PP006
Arctic and Antarctica: Geochemical and Geophysical Insights into the Geological Evolution and Climate Feedbacks in Polar and Sub-Polar Regions
Session ID#: 248905
Session Description:
The polar regions offer unique opportunities for geoscientific research, with geochemistry and geophysics crucial for understanding the geological past and predicting future climate impacts. By analyzing chemical signatures in rocks, sediments, ice cores, and ocean waters, geochemists can reconstruct the tectonic evolution and paleoenvironmental conditions of Polar regions. Geochemical data, such as isotopic and elemental tracers, provide insights into the interactions between the cryosphere, lithosphere, hydrosphere, and atmosphere, particularly concerning greenhouse gas dynamics. Geophysical techniques like seismic tomography, magnetotellurics, and radar help reveal subsurface geological formations, ice sheet thickness, and permafrost dynamics. These surveys also detect subglacial lakes and assess ice-bedrock interactions, which are vital for understanding ice sheet stability and sea-level rise. This session invites contributions on geochemical and geophysical approaches, focusing on GHG cycling, permafrost thawing, and carbon and methane release, aiming to enhance our understanding of the polar regions' geological history and their role in climate feedbacks.
Co-Sponsor(s):
Index Terms:
0702 Permafrost [CRYOSPHERE]
0706 Active layer [CRYOSPHERE]
Primary Convener: Fabio Florindo, National Institute of Geophysics and Volcanology, Rome, Italy
Conveners: Livio Ruggiero, CNR National Research Council, Rome, Italy and Alessandra Sciarra, National Institute of Geophysics and Volcanology, Rome, Italy
A Biomarker-Based Reconstruction of Holocene Sea Ice, Productivity, and Terrestrial Inputs in the Southern Chukchi Sea (1886955)
Kuang Jin1, Anne de Vernal2, Robert S Pickart3, Mickey Chen1, Gerard Otiniano4 and Trevor John Porter1, (1)University of Toronto Mississauga, Department of Geography, Geomatics and Environment, Mississauga, ON, Canada, (2)GEOTOP, Université du Québec à Montréal, Montreal, QC, Canada, (3)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (4)University at Buffalo, Department of Earth Sciences, Buffalo, NY, United States
Permafrost dynamics in Taylor and Wright valleys, McMurdo Dry Valleys, Antarctica (1893373)
Livio Ruggiero1, Alessandra Sciarra2, Gary S Wilson3, Adriano Mazzini4, Fabio Florindo5, Claudio Mazzoli6, Jacob Anderson7, Graham Leonard8, Thomas Brakering8, Jackson Beagley9 and Richard Hardie10, (1)CNR National Research Council, Rome, Italy, (2)National Institute of Geophysics and Volcanology, Rome, Italy, (3)University of Otago, Dunedin, New Zealand, (4)University of Oslo, CEED, Oslo, Norway, (5)INGV-ROME, Rome, Italy, (6)Department of Geosciences, University of Padova, Padova, Italy, (7)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (8)GNS Science, Lower Hutt, New Zealand, (9)University of Otago, Department of Geology, Dunedin, New Zealand, (10)NZ Government/DIA, New Zealand, New Zealand
Reconstructing Lower Circumpolar Deep Water Variations During Glacial–Interglacial Periods with Ferromanganese-Coated IRDs from the Drake Passage (1904613)
Sukyung CHU, Pusan National University, Department of Oceanography, Busan, Korea, Republic of (South), Kyucheul Yoo, Korea Polar Research Institute, Division of Glacial Environment Research, Incheon, South Korea, Huijeong Hwang, Gwangju Institute of Science and Technology, Department of Environment and Energy Engineering, Gwangju, South Korea and Kiho Yang, Pusan National University, Department of Oceanography, Busan, South Korea
Methane Fluxes Spatialization from Chamber Measurement to UAV and Sentinel-2 in the Alaskan Arctic Tundra Environment. (1908428)
Stefano Ponti1, Vasudha Chaturvedi1, Filippo Caccia1, Francesco Grifoni1, Chiara Casiraghi1, Randy Fulweber2, Colin Edgar2, Davide Ieffa1, Lorenzo Tonin1, Gabriele Terzoli1, Alessandro Longhi1, Francesco Malfasi3, Nicoletta Cannone1 and Mauro Guglielmin1, (1)University of Insubria, Varese, Italy, (2)Univesity of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, United States, (3)University of Insubria, Como, Italy
Paleoclimate of the Antarctic Peninsula from the Late Cretaceous to the Eocene (1940037)
Daniel Sepulveda, University of California, Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States, Hannah Tandy, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States, Sergio Marenssi, Universidad de Buenos Aires - Consejo Nacional de investigaciones Científicas y Técnicas, Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires, Buenos Aires, Argentina, Robert Eagle, University of California, Los Angeles, Department of Atmospheric & Oceanic Sciences, Los Angeles, CA, United States, Abel Aragon, George Mason University, Department of Atmospheric, Oceanic, and Earth Sciences, Fairfax, United States and Aradhna E. Tripati, University of California Los Angeles, Earth, Planetary, and Space Sciences; Atmospheric and Oceanic Sciences, Institute of the Environment and Sustainability, Los Angeles, United States
Antarctic Geologic Evolution (AGE): SCAR Science Program Planning Group to Unveil the 4D Lithospheric Architecture and Dynamics of Antarctica (1975106)
Guilia Matlide Ferrante, National Institute of Oceanography and Applied Geophysics OGS, Trieste, Italy, Joachim Jacobs, University of Bergen, Department of Earth Science, Bergen, Norway, Fausto Ferraccioli, NERC British Antarctic Survey, Cambridge, United Kingdom, Andreas Läufer, BGR Federal Institute for Geosciences and Natural Resources, Hannover, Germany and Laura Crispini, University of Genoa, Genoa, Italy
Do Polar Marine Sediments Hold a Record of Anthropogenic Climate Change? (1981534)
Molly Keogh, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States and Emily Eidam, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States
Seismic and Greenhouse Gases Monitoring in the Lower Taylor Valley (McMurdo Dry Valleys, Antarctica). (1992204)
Salomon Hailemikael1, Paola Baccheschi2, Alessandra Sciarra3, Gary S Wilson4, Fabio Florindo5, Jackson Beagley6, Claudio Mazzoli7, Lucy Davidson4, Livio Ruggiero8 and Caitlin Berquist9, (1)European Geosciences Union, Rome, ITALY, (2)INGV National Institute of Geophysics and Volcanology, Rome, Italy, (3)National Institute of Geophysics and Volcanology, Rome, Italy, (4)University of Otago, Dunedin, New Zealand, (5)INGV-ROME, Rome, Italy, (6)University of Otago, Department of Geology, Dunedin, New Zealand, (7)Department of Geosciences, University of Padova, Padova, Italy, (8)CNR National Research Council, Rome, Italy, (9)University of Waikato, Hamilton, New Zealand
