GP41A:
Environmental Processes Revealed Through Soil and Sediment Magnetism I


Submit an Abstract to this Session


Session ID#: 56739

Session Description:
Magnetic minerals in soils, dust, and lake and marine sediments record important information about Earth surface processes and past environmental conditions. Our ability to interpret environmental change through magnetic signals continues to improve through better understanding of how magnetic minerals interact with their surroundings in aqueous and surface environments.  We welcome submissions on all aspects of environmental magnetism, including but not limited to the use of magnetic properties to understand paleoclimate, weathering, soil development, diagenesis and alteration, and pollution, among other topics. Interdisciplinary studies that incorporate aspects of geochemistry, biology, microscopy, or new analysis techniques are especially encouraged.
Primary Convener:  Jessica L Till, University of Iceland, Institute of Earth Sciences, Reykjavik, Iceland
Conveners:  Christoph E Geiss, Trinity College, Hartford, CT, United States and Ioan Lascu, Smithsonian Institution, Washington, United States
Primary Liaison:  Jessica L Till, University of Iceland, Institute of Earth Sciences, Reykjavik, Iceland
Chairs:  Christoph E Geiss, Trinity College, Hartford, CT, United States and Ioan Lascu, Smithsonian Institution, Washington, United States
OSPA Liaison:  Ioan Lascu, Smithsonian Institution, Washington, United States
Index Terms:

0486 Soils/pedology [BIOGEOSCIENCES]
1512 Environmental magnetism [GEOMAGNETISM AND PALEOMAGNETISM]
1527 Paleomagnetism applied to geologic processes [GEOMAGNETISM AND PALEOMAGNETISM]
1540 Rock and mineral magnetism [GEOMAGNETISM AND PALEOMAGNETISM]

Abstracts Submitted to this Session:

Reducing environments and their impacts on magnetic properties of sediments (Invited) (388681)
Yael Ebert, The Hebrew University of Jerusalem, Jerusalem, Israel, Ron Shaar, Hebrew University of Jerusalem, The Institute of Earth Sciences, Jerusalem, Israel and Mordechai Stein, Geological Survey of Israel, Jerusalem, Israel
Tracking Microbial Contributions to Pyrrhotite Oxidation Using Integrated Geochemical and Magnetic Techniques. (398997)
Kathryn Hobart1,2, Daniel S Jones2,3 and Joshua M Feinberg4,5, (1)Institute for Rock Magnetism, University of Minnesota, Minneapolis, MN, United States, (2)Department of Earth Sciences, University of Minnesota, Minneapolis, MN, United States, (3)BioTechnology Institute, University of Minnesota, St. Paul, MN, United States, (4)University of Minnesota, Department of Earth and Environmental Sciences, Minneapolis, United States, (5)University of Minnesota, Institute for Rock Magnetism, Department of Earth & Environmental Sciences, Minneapolis, Minneapolis, United States
How quickly can soils adjust to environmental perturbations? An updated rock magnetic, centennial-scale paleoclimate record for the last 22 ka from Hall’s Cave, Texas, USA (431539)
Joshua M Feinberg, University of Minnesota, Institute for Rock Magnetism, Department of Earth & Environmental Sciences, Minneapolis, Minneapolis, United States, Mark D Bourne, University of Minnesota Twin Cities, Minneapolis, MN, United States, Michael R Waters, Texas A & M University College Station, Department of Anthroplogy, College Station, TX, United States and Thomas W Stafford Jr, Stafford Research Laboratories, Lafayette, CO, United States
Late Triassic pedoclimate change of the Chinle Formation interpreted from scientific core CPCP-PFNP13-1A, Colorado Plateau Coring Project (CPCP) (361608)
Christopher J Lepre, Rutgers University, Department of Earth and Planetary Sciences, Piscataway, NJ, United States, Dennis Kent, Rutgers University, Piscataway, NJ, United States, Paul E Olsen, Lamont-Doherty Earth Observatory, Palisades, NY, United States and CPCP Science Team
Using rock magnetic parameters to determine different weathering profiles and provenance changes reflecting the mid- Pleistocene Transition in the Pleistocene Blackwater Draw Formation, Southern High Plains, Texas. (380061)
Jonathan M G M Stine, University of Texas at Dallas, Richardson, TX, United States, John W Geissman, University of Texas at Dallas, Department of Geosciences, Richardson, TX, United States, Dustin E. Sweet, Texas Tech University, Department of Geosciences, Lubbock, TX, United States and John F Ferguson, University of Texas at Dallas, Richardson, United States
The Particle Size Specific Magnetic Properties of Eirik Ridge Sediments over the Last 150 ka from IODP Expedition 303 U1305 and U1306: Disentangling the Influences of the Greenland Ice Sheet and Deep Western Boundary Current (447241)
Benjamin Freiberg1, Robert G Hatfield2, Joseph Stephen Stoner2, Brendan T Reilly3 and Katharine Solada2, (1)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (3)UC San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Using Hysteresis Reversal Curves (FORCs) to Diagnose Magnetic Domain State Quantitively (Invited) (385717)
Xiang Zhao1, Andrew P Roberts2,3, David Heslop1,3, Greig A Paterson4, Yi-Liang Li5, Jinhua LI6 and Pengxiang Hu3,7, (1)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, (2)Australian National University, Research School of Earth Sciences, Canberra, Australia, (3)National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, (4)University of Liverpool, Liverpool, United Kingdom, (5)The University of Hong Kong, Department of Earth Sciences, Hong Kong, Hong Kong, (6)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (7)The Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia

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