日本地球惑星科学連合2018年大会

セッション情報

[EE] Eveningポスター発表

セッション記号 S (固体地球科学) » S-IT 地球内部科学・地球惑星テクトニクス

[S-IT25] Deep Carbon: Diamond formation and carbon speciation in Earth and planetary processes

2018年5月22日(火) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 7ホール)

コンビーナ:大谷 栄治(東北大学大学院理学研究科地学専攻)、Litasov Konstantin(V.S. Sobolev Institute of Geology and Mineralogy SB RAS)、鍵 裕之(東京大学大学院理学系研究科附属地殻化学実験施設、共同)、Craig E Manning (University of California Los Angeles)

Diamonds are observed in various localities including terrestrial and extraterrestrial environments. However, there are several reports on the diamond localities from non-traditional sources including ultra-deep seated diamonds, ultrahigh pressure metamorphic rocks, various magmas, some meteorites and terrestrial craters. These diamonds might be formed by shock events, crystallization from fluids, magmas, or metallic melts, and CVD process. In this session, we welcome papers on occurrence and origin of diamonds from traditional and non-traditional sources in earth and meteorites. We also encourage the experimental studies on diamond genesis, speciation of carbon bearing compounds in terrestrial rocks and meteorites. We welcome papers on formation mechanisms of diamond in natural metal-carbon systems, chromatographic study of deep seated and experimental fluids. We also welcome papers dealing with behavior of organic materials at high pressure and high temperature corresponding to the deep earth and planets. In some chromitites, various enigmatic high pressure phases have been reported as inclusions together with diamond. We also encourage the presentations on descriptions and discussions on the origin of these materials.

Denis Mikhailenko1Andrey Korsakov1、*Konstantin Litasov1Olga Shchepetova1Kira Musiyachenko2Hiroaki Ohfuji3 (1.V.S. Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russia、2.Novosibirsk State University, Novosibirsk, Russia、3.Geochemical Research Center, University of Tokyo, Tokyo, Japan)

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