GP43D:
Biogeomagnetism, Biogenic Magnetic Minerals, and the Environment II Posters


Submit an Abstract to this Session


Session ID#: 46978

Session Description:
Organisms mineralize directly or indirectly magnetic minerals and use them for known and unknown purposes in various natural processes within the present and past environments on Earth. We solicit contributions on all research aspects of bio-geomagnetism enabling to further our understanding. Examples include, but are not limited to, the diversity and characterization of magnetotactic bacteria and other Fe(III)-reducing and Fe(II)-oxidizing microorganisms in natural habitats and laboratory cultures; origin and evolution of magnetotaxis; mineralization, magnetism and applications of biogenic magnetic nano-minerals; magnetofossils at critical transitions in the geological past (e.g., polarity transitions, hyper-thermal climate events, radiations and extinctions), and their contributions to sedimentary magnetism; magnetoreception and magnetic navigation by animals; long-term correlation of deep-time geological and paleomagnetic records. Experimental investigations and theoretical simulations of the influence of changing geomagnetic fields on organisms and the biosphere as a whole (and through associated atmospheric and cosmic radiation variations) are also solicited.
Primary Convener:  Yongxin Pan, Paleomagnetism and Geochronology Laboratory, Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Conveners:  John Anthony Tarduno, University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, Ioan Lascu, Smithsonian Institution, Washington, United States and France Lagroix, IPGP, Paris, France
Primary Liaison:  France Lagroix, IPGP, Paris, France
Chairs:  John Anthony Tarduno, University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States and France Lagroix, IPGP, Paris, France
OSPA Liaison:  Ioan Lascu, Smithsonian Institution, National Museum of Natural History, Mineral Sciences, Washington, United States
Index Terms:

1505 Biogenic magnetic minerals [GEOMAGNETISM AND PALEOMAGNETISM]
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:

Genomic Insights into the Origin and Evolution of Magnetotaxis (402749)
Wei Lin, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China and Yongxin Pan, Paleomagnetism and Geochronology Laboratory, Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
The below 50 K quadrature magnetic susceptibility anomaly in magnetite: What can we learn from magnetotactic bacteria? (451530)
France Lagroix1, Raphaël Le Fèvre2 and Edouard Alphandéry2,3, (1)Université de Paris, Institut de Physique du Globe de Paris, CNRS, Paris, France, (2)Nanobacterie SARL, Paris, France, (3)IMPMC Institut de Minéralogie et de Physique des Milieux Condensés, Paris Cedex 05, France
Changing abundance of magnetofossil morphologies in pelagic red clay (407261)
Yoichi Usui1, Toshitsugu Yamazaki2 and Masafumi Saitoh1, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
Paleoenvironmental implications of magnetofossil occurrences in the Eocene-Oligocene marine sediments from the Monte Cagnero Section (Central Italy): Preliminary results (455909)
Jairo F Savian1, Daniel Rodelli2, Luigi Jovane3, Fabrizio Frontalini4, Rodolfo Coccioni5, Simonetta Monechi6, Flavia Tori6, Rita Catanzariti7 and Johnathan Johnathan H. Gambeta8, (1)UFRGS Federal University of Rio Grande do Sul, Porto Alegre, Brazil, (2)USP University of Sao Paulo, São Paulo, Brazil, (3)Oceanographic Institute of the University of São Paulo, Department of Fisical Oceanography, São Paulo, Brazil, (4)Università degli Studi di Urbino “Carlo Bo”, Dipartimento di Scienze Pure e Applicate, Urbino, Italy, (5)University of Urbino, Urbino, Italy, (6)Università degli Studi di Firenze, Dipartimento di Scienze della Terra, Firenze, Italy, (7)Consiglio Nazionale dele Ricerche (CNR), Istituto di Geoscienze e Georisorse, Pisa, Italy, (8)Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
Magnetic properties of ultrafine-grained magnetite: data from magnetoferritins and magnetosomes (459675)
Yongxin Pan, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China and Tongwei Zhang, Paleomagnetism and Geochronology Laboratory, Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Bio-mimetically synthesized hematite/maghemite nanoparticles used for efficient positive magnetic resonance angiography (411870)
Yao Cai1,2, Huangtao Xu1,2, Changqian Cao Sr1,2, Tongwei Zhang3,4, Rixiang Zhu1 and Yongxin Pan2,5, (1)Paleomagnetism and Geochronology Laboratory, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (2)France-China Evolution and Development of Magnetotactic MultiCellular Organisms, Chinese Academy of Sciences, Beijing, China, (3)Paleomagnetism and Geochronology Laboratory, Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (4)France-China Joint Laboratory for Evolution and Development of Magnetotactic MultiCellular Organisms (LIA-MagMC), Chinese Academy of Sciences, Beijing, China, (5)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Uncovering the Origin of Magnetism in Early Proterozoic Rocks from Lake Superior: A False Positive Test for Magnetofossils (443376)
D'Maia Curry, Pomona College, Claremont, CA, United States, Ioan Lascu, Smithsonian Institution, Washington, United States and Roger R Fu, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States

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