Petrographic Shock Indicators,Cosmic Ray Exposure Ages and Gas Retention Ages of a H and an L Chondrite from Antarctica
作者单位：Key Laboratory of Earth and Planetary PhysicsInstitute of Geology and GeophysicsChinese Academy of Sciences University of Chinese Academy of Sciences College of Earth SciencesGuilin University of technology
会议名称：《中国矿物岩石地球化学学会第九次全国会员代表大会暨第16届学术年会》
会议日期：2017年
学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学]
摘 要：Petrographic shock indicators and noble gas signatures in the ordinary chondrites Grove Mountain(GRV)13083(H4)and GRV 13095(L5)were studied in order to investigate the degrees of shock metamorphism and impact related chronologies on H and L chondrite parent *** on the impact teatures in silicates and metal-troilite assemblages,the shock stages of the samples were classified as S6 and