GP13A:
Advances in Biomagnetism, Magnetic Proxy Parameters, and Authigenesis and Diagenesis of Magnetic Minerals I

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Session ID#: 34973

Session Description:
Magnetic minerals are sensitive to a broad spectrum of natural processes. In sediments, microbial and abiotic processes have an important influence on the magnetic mineral assemblage and paleomagnetic signal by newly forming (e.g. biomineralization of magnetic minerals) and/or altering pre-existing magnetic minerals. How to identify and assess these authigenetic and diagenetic magnetic minerals as well as their influence on paleoenvironmental and paleomagnetic records of sediments are essential. Magnetic proxy parameters can serve a wide variety of geoscience applications. The intricacies of paleomagnetic signals can be unraveled using magnetic property analysis to provide key geological information. This session solicits contributions on bio-geomagnetism, the use of magnetic proxy parameters and diagenesis of magnetic minerals. Broad range applications, interdisciplinary studies, experimental investigation, theoretical simulation and new techniques improving our understanding of these topics are welcome.
Primary Convener:  Yongxin Pan, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Conveners:  Myriam Annie Claire Kars, Kochi University, Center for Advanced Marine Core Research, Nankoku, Japan, Mark J Dekkers, Utrecht University, Paleomagnetic Laboratory, Fort Hoofddijk, Utrecht, Netherlands and Susann Henkel, MARUM - University of Bremen, Bremen, Germany
Chairs:  Mark J Dekkers, Utrecht University, Paleomagnetic Laboratory, Fort Hoofddijk, Utrecht, Netherlands, John Anthony Tarduno, University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States and France Lagroix, IPGP, Paris, France
OSPA Liaison:  Myriam Annie Claire Kars, Kochi University, Center for Advanced Marine Core Research, Nankoku, Japan

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • EP - Earth and Planetary Surface Processes
  • MR - Mineral and Rock Physics
  • OS - Ocean Sciences
Index Terms:

0419 Biomineralization [BIOGEOSCIENCES]
1505 Biogenic magnetic minerals [GEOMAGNETISM AND PALEOMAGNETISM]
1512 Environmental magnetism [GEOMAGNETISM AND PALEOMAGNETISM]
1540 Rock and mineral magnetism [GEOMAGNETISM AND PALEOMAGNETISM]

Abstracts Submitted to this Session:

The formation of magnetite in the early Archean oceans (Invited) (227594)
Yi-Liang Li, The University of Hong Kong, Department of Earth Sciences, Hong Kong, Hong Kong
A new magnetofossil approach to trace paleoenvironmental changes across the Paleocene-Eocene Thermal Maximum (226797)
Liao Chang, Peking University, School of Earth and Space Sciences, Beijing, China, Richard J Harrison, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, David Heslop, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia and Andrew P Roberts, Australian National University, Research School of Earth Sciences, Canberra, Australia
Interpreting the Effects of Pulse Remagnetization on Animal Behavior (245134)
Joseph L Kirschvink1, Connie X. Wang2, Harry N. Golash3, Isaac A. Hilburn4, Daw-An Wu2, Sarah Josephine Crucilla5, Yovan D. Badal6 and Shinsuke Shimojo2, (1)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, (2)California Institute of Technology, Division of Biology and Biological Engineering, Pasadena, CA, United States, (3)California Institute of Technology, Pasadena, CA, United States, (4)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, (5)California Institute of Technology, Geological and Planetary Sciences, Pasadena, CA, United States, (6)California Institute of Technology, Division of Physics, Mathematics and Astronomy, Pasadena, CA, United States
A Critical Appraisal of the ‘Day’ Diagram (Invited) (295215)
Andrew P Roberts, Australian National University, Research School of Earth Sciences, Canberra, Australia, Lisa Tauxe, Scripps Institution of Oceanography, University of California San Diego, La Jolla, United States and David Heslop, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
From the ocean to a salt marsh: towards understanding iron reduction processes with FORC-PCA. (261116)
Joy R. Muraszko, University of Cambridge, Cambridge, United Kingdom, Ioan Lascu, Smithsonian Institution, National Museum of Natural History, Mineral Sciences, Washington, United States, Sean M Collins, University of Cambridge, Materials Science and Metallurgy, Cambridge, United Kingdom and Richard J Harrison, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom
Component Analysis of Remanent Magnetization Curves: A Revisit with a New Model Distribution (269608)
Xiangyu Zhao, National Institute of Polar Research, Tokyo, Japan, Yusuke Suganuma, NIPR National Institute of Polar Research, Tokyo, Japan and Masakazu Fujii, NIPR National Institute of Polar Research / SOKENDAI, Tokyo, Japan
Thermomagnetic Analyses to Test Concrete Stability (Invited) (224678)
Christoph E Geiss, Trinity College, Environmental Science, Hartford, CT, United States and Jonathan R Gourley, Trinity College, Environmental Science Program, Hartford, CT, United States

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