Japan Geoscience Union Meeting 2021

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[J] Oral

S (Solid Earth Sciences ) » S-GL Geology

[S-GL22] Geochronology and Isotope Geology

Fri. Jun 4, 2021 1:45 PM - 3:15 PM Ch.23 (Zoom Room 23)

convener:Takahiro Tagami(Graduate School of Science, Kyoto University), Yuji Sano(Division of Ocean and Earth Systems, Atmosphere and Ocean Research Institute, University of Tokyo), Chairperson:Takahiro Tagami(Graduate School of Science, Kyoto University), Yuji Sano(Center for Advanced Marine Core Research, Kochi University)

2:45 PM - 3:15 PM

[SGL22-04] Deciphering the earliest Earth history from nitrogen, a highly-siderophile-highly-volatile element

★Invited Papers

*Ko Hashizume1, Osamu Ohtaka2 (1.Faculty of Science, Ibaraki University, 2.Graduate School of Science, Osaka University)

Keywords:Earliest Earth History, Nitrogen, Siderophile

Earth is generally considered to have been formed mainly from primitive chondrite-like building blocks. The differences in the elemental composition between chondrites and the bulk silicate Earth may provide information on the behaviors of elements during the accretion and differentiation stages of Earth. This study highlights the behaviors of the highly volatile elements, particularly nitrogen and carbon during the core formation, and by catastrophic impacts.