Saline permafrost and associated gas hydrates: distribution, definition, and evolution

Creel, Roger

C036
Saline permafrost and associated gas hydrates: distribution, definition, and evolution

Session ID#: 251610

Session Description:

Saline permafrost—permafrost whose freezing point is depressed by dissolved solids—is found in diverse regions worldwide, including the Arctic, Antarctic, and high-elevation areas of Central Asia. In marine settings, saline permafrost commonly hosts and overlies gas hydrates: ice-like substances that hold methane gas and are only stable in low-temperature, high-pressure conditions. Understanding saline permafrost and associated gas hydrates is important because both are vulnerable to climate change. However, uncertainties in the distribution, evolution, and even definition of saline permafrost and associated gas hydrates have hindered their inclusion in global carbon budgets and policy discussions. We invite studies that expand understanding of saline permafrost and associated gas hydrates from field, experimental, and modeling perspectives. We encourage submissions that apply geophysical, geomechanical, geological, biological, geochemical, and/or geotechnical approaches to explore these systems. Contributions may consider any geographic region and employ remote sensing, in-situ observation, and/or conceptual models.

Co-Sponsor(s):

B - Biogeosciences
EP - Earth and Planetary Surface Processes
H - Hydrology
PP - Paleoceanography and Paleoclimatology

Index Terms:

0702 Permafrost [CRYOSPHERE]
0708 Thermokarst [CRYOSPHERE]
0714 Clathrate [CRYOSPHERE]
0718 Tundra [CRYOSPHERE]

Primary Convener: Roger Creel, Woods Hole Oceanographic Institution, Department of Physical Oceanography, Woods Hole, United States

Conveners: Benjamin M Jones, University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States and Judith Maria Schicks, GFZ Helmholtz Centre for Geosciences, Potsdam, Germany

Student/Early Career Convener: Michael Angelopoulos, Technical University of Munich, Munich, Germany; Technical University of Munich, Chair of Landslide Research, Munich, Germany

Massive Saline Ground Ice and Hypersaline Brines in a Pingo-Like Mound in Arctic Alaska (1844598)

Benjamin M Jones¹, Mikhail Z Kanevskiy¹, Andy Parsekian², Denis Lacelle³, Melissa Ward Jones⁴, Mr. Phillip Raymond Raymond Wilson⁵, Linda Nicholas-Figueroa⁶, Sarah Shackleton⁷, John Pohlman⁸, Eric S Klein⁹, Logan Wieland⁹, Jessica Gilman Ernakovich¹⁰, Torin Scalora-Riley¹¹, Rachel H. Harris¹², Roger Creel¹³, Matthew J Wooller¹⁴, Yuri Shur¹⁵ and Sergei Nadeev², (1)University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States, (2)University of Wyoming, Department of Geology and Geophysics, Laramie, United States, (3)University of Ottawa, Department of Geography, Ottawa, Canada, (4)University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, United States, (5)University of Alaska Fairbanks, Institute of Northern Engineering, Palmer, United States, (6)Ilisagivk College, Utqiagvik, United States, (7)Woods Hole Oceanographic Institution, Woods Hole, United States, (8)U.S. Geological Survey, Woods Hole Coastal and Marine Science Center, Woods Hole, United States, (9)University of Alaska Anchorage, Geological Sciences, Anchorage, United States, (10)University of New Hampshire Main Campus, Department of Natural Resources and the Environment, Durham, NH, United States, (11)University of New Hampshire Main Campus, Durham, NH, United States, (12)University of Wyoming, Department of Geology and Geophysics, Laramie, WY, United States, (13)Texas A& M University, Geology and Geophysics, College Station, United States, (14)University of Alaska Fairbanks, Fairbanks, United States, (15)University Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States

Evolution of Arctic Permafrost and its Associated Methane Hydrate Stability Zone Over Past Glacial-Interglacial Cycles (Invited) (1867924)

Kehua You, University of Texas at Austin, Austin, TX, United States

Induced polarization signals in time-domain electromagnetic data on the Arctic Coastal Plain of Alaska and implications for interpretation of ground ice and saline permafrost (1873397)

Andy Parsekian¹, Rachel H. Harris², Benjamin M Jones³, Sergei Nadeev¹, Rodrigo Correa Rangel⁴, Mr. Phillip Raymond Raymond Wilson⁵ and Mikhail Z Kanevskiy³, (1)University of Wyoming, Department of Geology and Geophysics, Laramie, United States, (2)Appalachian State University, Department of Geological and Environmental Sciences, Boone, United States, (3)University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States, (4)University of Wyoming, Laramie, WY, United States, (5)University of Alaska Fairbanks, Institute of Northern Engineering, Palmer, United States

Time-Domain Electromagnetic Characterization of Subsurface Salinity and Ground Ice on the Alaskan Arctic Coastal Plain (1874603)

Rachel H. Harris¹, Andy Parsekian², Benjamin M Jones³, Sergei Nadeev², Rodrigo Correa Rangel⁴, Mr. Phillip Raymond Raymond Wilson⁵ and Mikhail Z Kanevskiy³, (1)University of Wyoming, Department of Geology and Geophysics, Laramie, WY, United States, (2)University of Wyoming, Department of Geology and Geophysics, Laramie, United States, (3)University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States, (4)University of Toronto, Department of Earth Sciences, Toronto, ON, Canada, (5)University of Alaska Fairbanks, Institute of Northern Engineering, Palmer, United States

Freezing Point Depression of the Saline Permafrost in Alaska (1874700)

Sergei Nadeev¹, Andy Parsekian¹, Ephraim Owusu-Banahene², Morteza Dejam², Benjamin M Jones³ and Mikhail Z Kanevskiy³, (1)University of Wyoming, Department of Geology and Geophysics, Laramie, United States, (2)University of Wyoming, Department of Energy and Petroleum Engineering, Laramie, United States, (3)University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States

Greenhouse Gas Production in Transforming Coastal Permafrost Landscapes (Invited) (1886772)

Maren Jenrich¹, Guido Grosse¹, Susanne Liebner², Christian Knoblauch³, Michael Angelopoulos⁴, Maria Prodinger⁵, Ingmar Nitze⁶, Benjamin M Jones⁷, Jens Strauss⁸ and Dustin Whalen⁹, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research Section, Potsdam, Germany, (2)GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany, (3)University of Hamburg, Institute of Soil Science, Hamburg, Germany, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (5)Universität Hamburg, Institute of Geography, Hamburg, Germany, (6)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (7)University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States, (8)Alfred Wegener Institute for Polar and Marine Research, Permafrost Research Section, Potsdam, Germany, (9)Geological Survey of Canada Atlantic, Natural Resources Canada, Dartmouth, NS, Canada

Subglacial Gas Hydrate Storage and Massive Methane Emissions During Deglaciation of the Fennoscandian Ice Sheet (1898993)

Zhen Li, University of Texas Institute for Geophysics (UTIG), Austin, TX, UNITED STATES, Roger Creel, Texas A& M University, Geology and Geophysics, College Station, United States and Kehua You, University of Texas at Austin, Austin, TX, United States

Gas hydrate is widespread on Earth's continental margins: implications for permafrost systems (Invited) (1903059)

Ann Cook¹, Fawz Naim² and Urmi Majumdar², (1)Ohio State University Main Campus, School of Earth Sciences, Columbus, United States, (2)Ohio State University Main Campus, Columbus, United States

Fresh Eyes on the Flaxman Boulders of the Alaskan North Slope: an overlooked window into Laurentide Ice Sheet iceberg rafting during past warm periods (1947189)

Roger Creel^1,2, Benjamin M Jones³, Allie Balter-Kennedy⁴, Mikhail Z Kanevskiy³, Sarah Shackleton⁵, Mr. Phillip Raymond Raymond Wilson⁶, Sidney R Hemming⁷ and Julie Brigham-Grette⁸, (1)Woods Hole Oceanographic Institution, Department of Physical Oceanography, Woods Hole, United States, (2)Texas A& M University, Geology and Geophysics, College Station, United States, (3)University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States, (4)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (5)Woods Hole Oceanographic Institution, Woods Hole, United States, (6)University of Alaska Fairbanks, Institute of Northern Engineering, Palmer, United States, (7)Lamont-Doherty Earth Observatory, Palisades, United States, (8)Univ Massachusetts, Amherst, MA, United States

Deciphering the Mechanisms of Cryopeg Formation in Permafrost using the CryoGrid Community Model (1980838)

Michael Angelopoulos^1,2, Sebastian Westermann³, Frederieke Miesner^2,3, Paul Overduin², Benjamin M Jones⁴, Guido Grosse^2,5, Jens Tronicke⁵, Julia Boike^2,6, Roger Creel^7,8 and Michael Krautblatter¹, (1)Technical University of Munich, Chair of Landslide Research, Munich, Germany, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (3)University of Oslo, Department of Geosciences, Oslo, Norway, (4)University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States, (5)University of Potsdam, Institute of Geosciences, Potsdam, Germany, (6)Humboldt University of Berlin, Department of Geography, Berlin, Germany, (7)Texas A& M University, Geology and Geophysics, College Station, United States, (8)Woods Hole Oceanographic Institution, Department of Physical Oceanography, Woods Hole, United States

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C036 Saline permafrost and associated gas hydrates: distribution, definition, and evolution

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Index Terms:

C036
Saline permafrost and associated gas hydrates: distribution, definition, and evolution