GP14A:
Advances in Biomagnetism, Magnetic Proxy Parameters, and Authigenesis and Diagenesis of Magnetic Minerals II

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Session ID#: 34979

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:  Myriam Annie Claire Kars, Kochi University, Center for Advanced Marine Core Research, Nankoku, Japan and Liao Chang, Peking University, School of Earth and Space Sciences, Beijing, China
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:

0414 Biogeochemical cycles, processes, and modeling [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 Different Climatic Response of Pedogenic Hematite and Ferrimagnetic Minerals: Evidence from Particle-Sized Modern Soils over the Chinese Loess Plateau (239497)
Xinbo Gao1,2, Qingzhen Hao1,2, Wang Luo1,2, Frank Oldfield3, Jan Bloemendal3, Chenglong Deng2,4, Yang Song5, Junyi Ge2,6, Haibin Wu2,7, Bing Xu1,2, Fengjiang Li1,2, Long Han1,2, Yu Fu1,2 and Zhengtang Guo2,7, (1)Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (2)University of Chinese Academy of Sciences, Beijing, China, (3)School of Environmental Sciences, University of Liverpool, Liverpool, United Kingdom, (4)State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, beijing, China, (5)State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China, (6)Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijng, China, (7)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Deep Magnetic Diagenesis in Sediments: Progressive and Punctuated Processes. (Invited) (217257)
Robert J Musgrave, University of Sydney, School of Geosciences, Sydney, Australia; Geological Survey of New South Wales, NSW Department of Planning & Environment, Maitland, Australia, Myriam Annie Claire Kars, University of Plymouth, International Ocean Drilling Programme, Plymouth, UK and Marta E Vega, Geological Survey of New South Wales, NSW Department of Planning & Environment, Maitland, NSW, Australia
Magnetic Signatures of Magnetic Mineral Diagenesis Associated with Modern and Fossil Methane Hydrates (297019)
Andrew P Roberts, Australian National University, Research School of Earth Sciences, Canberra, Australia
Application of magnetic techniques to lateral hydrocarbon migration - Lower Tertiary reservoir systems, UK North Sea (223517)
Sijibomioluwa Adesope Badejo, Adrian R Muxworthy and Alastair Fraser, Imperial College London, Earth Science and Engineering, London, United Kingdom
A kinetic model that explains the dependence of magnetic susceptibility of sediment on grain size and organic matter content in transitional marine environments. Testing case studies in estuarine-like environments of NW Iberia (254150)
Daniel Rey1, Kais J Mohamed2, Alba Andrade2, Belen Rubio2 and Ana M. Bernabeu2, (1)University of Vigo, Marine Geosciences, Vigo, Spain, (2)Universidad de Vigo, Vigo, Spain

See more of: Geomagnetism, Paleomagnetism and Electromagnetism