GP22A:
Fundamental Mineral and Rock Magnetism I

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Session ID#: 15729

Session Description:
Rock magnetism has many applications in the Earth and Planetary Sciences: e.g., magnetostratigraphy, paleomagnetism, archeomagnetism, planetary geology, and biomagnetism. All of these applications depend critically on the quality and robustness of the recording and storage of the geomagnetic field in various magnetic mineral assemblages. Here we focus on recent advances in our fundamental understanding of processes that govern the acquisition, preservation and alteration of remanent magnetizations at nanometer to planetary scales. Contributions are invited from all areas of mineral and rock magnetism, including new theoretical and experimental approaches, fundamental studies of magnetic minerals and their grain size-dependent properties, quantification of anisotropy and the interpretation of magnetic fabrics, advances in characterizing magnetic mineral/grain size mixtures, magnetic imaging, and quantitative models of the behavior of natural and synthetic magnetic systems. We welcome contributions that have implications for the magnetic signal (direction and intensity) derived from complex magnetic mineral assemblages.
Primary Convener:  Bruce M Moskowitz, University of Minnesota, Department of Earth Sciences, and Institute for Rock Magnetism, Minneapolis, MN, United States
Conveners:  Joshua M Feinberg, University of Minnesota Twin Cities, Institute for Rock Magnetism, Department of Earth & Environmental Sciences, Minneapolis, United States, Dario Bilardello, University of Minnesota, Institute for Rock Magnetism, Minneapolis, United States and Julie A Bowles, University of Wisconsin Milwaukee, Geosciences, Milwaukee, WI, United States
Chairs:  Dario Bilardello, University of Minnesota, Institute for Rock Magnetism, Minneapolis, United States and Joshua M Feinberg, University of Minnesota Twin Cities, Institute for Rock Magnetism, Department of Earth & Environmental Sciences, Minneapolis, United States
OSPA Liaison:  Dario Bilardello, University of Minnesota, Institute for Rock Magnetism, Minneapolis, United States
Index Terms:

1518 Magnetic fabrics and anisotropy [GEOMAGNETISM AND PALEOMAGNETISM]
1519 Magnetic mineralogy and petrology [GEOMAGNETISM AND PALEOMAGNETISM]
1540 Rock and mineral magnetism [GEOMAGNETISM AND PALEOMAGNETISM]

Abstracts Submitted to this Session:

What does it mean to be pseudo single domain? Demystifying the PSD state (126360)
Ioan Lascu1, Richard J Harrison2, Joshua Franz Einsle3 and Matthew Ball2, (1)Smithsonian Institution, National Museum of Natural History, Mineral Sciences, Washington, United States, (2)University of Cambridge, Cambridge, United Kingdom, (3)University of Cambridge, Department of Materials Science and Metallurgy, Department of Earth Sciences, Cambridge, United Kingdom
The Hunting of the ‘Psark' - 40 Years On (Invited) (119746)
Wyn Williams1, Lesleis Nagy2, Karl Fabian3, Pádraig Ó Conbhuí2, Adrian R Muxworthy4 and Trevor Almeida5, (1)University of Edinburgh, School of GeoSciences, Edinburgh, EH9, United Kingdom, (2)University of Edinburgh, Edinburgh, United Kingdom, (3)Geological Survey of Norway, Marine Geology, Trondheim, Norway, (4)Imperial College London, Earth Science and Engineering, London, United Kingdom, (5)Imperial College London, London, United Kingdom
How to correct paleointensity data for cooling rate effects? theory, problems, and solutions based on new experimental results (162944)
Ron Shaar, Hebrew University of Jerusalem, The Institute of Earth Sciences, Jerusalem, Israel
Pressure demagnetization - a potential approach to improve successfulabsolute paleointensity experiments (Invited) (157623)
Michael R Volk, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States and Stuart Gilder, Ludwig Maximilians University of Munich, Munich, Germany
TRM Acquisition in Titanomagnetite Under Lower Crustal Pressures (172260)
Nicolas Launay1, Pierre Rochette2, Yoann Quesnel1, Natalia S. Bezaeva3 and Dominique Lattard4, (1)CEREGE, Aix-en-Provence Cedex, France, (2)CEREGE ARBOIS, Aix En Provence, France, (3)Ural Federal University, Institute of Physics and Technology, Yekaterinburg, Russia, (4)University of Heidelberg, Heidelberg, Germany
The Effect of Microstructures in Magnetite on Remanent Magnetic Anomalies: Implications for Geophysical Exploration of Natural Resources (171888)
Geertje W. ter Maat1, Marianne Floen Stange2, Nathan S Church1, Karl Fabian3 and Suzanne A McEnroe2, (1)Norwegian University of Science and Technology, Department of Geoscience and Petroleum, Trondheim, Norway, (2)Norwegian University of Science and Technology, Trondheim, Norway, (3)Geological Survey of Norway, Marine Geology, Trondheim, Norway
The Paleomagnetic Record of Eoarchean to Hadean Zircons: Magnetic Hysteresis, Imaging Magnetic Sources, Micromagnetic Modeling and Constraining Post-formation Heating (185820)
Richard K. Bono, University of Liverpool, Liverpool, United Kingdom, John Anthony Tarduno, University of Rochester, Department of Physics and Astronomy, Rochester, NY, United States, Rory Danielle Cottrell, University of Rochester, Earth and Environmental Sciences, Rochester, NY, United States and Matthew Stephen Dare, University of Rochester, Rochester, NY, United States
What causes the Besnus transition in monoclinic pyrrhotite? (178637)
Andreas Ulrich Gehring1, Dimitrios Koulialias1, Jörg F. Löffler2 and Michalis Charilaou2, (1)ETH Zürich, Department of Earth Sciences, Zürich, Switzerland, (2)ETH Zurich, Department of Materials, Zurich, Switzerland

See more of: Geomagnetism, Paleomagnetism and Electromagnetism