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The occurrence of metallic copper and redistribution of copper in the shocked Suizhou L6 chondrite: 《Acta Geochimica》2024年第5期827-837,共11页Xiande Xie Xiangping Gu Yiping Yang; supported by Science and Technology Planning Project of Guangdong Province,2023B1212060048.; Copper possesses very strong chacophile properties,but under the conditions found in meteorites,its behavior is like that of siderophile elements.The Suizhou meteorite is a highly shocked L6 chondrite.Troilite and tae...; 关键词：Suizhou chondrite Shock vein Metallic copper Metal-troilite intergrowth Elemental intensity mapping

Formation of FeNi metal nodules in the Jilin H5 chondrite,the largest stone meteorite in the world: 《Acta Geochimica》2023年第6期961-970,共10页Xiande Xie; financially supported by the Science and Technology Planning Project of Guangdong Province,China, 2020B1212060055。; The Jilin H5 chondrite, the largest known stony meteorite in the world, with its No.1 fragment weighing1770 kg. It contains submillimeter-to centimeter-sized FeNi metal particles/nodules. Our optical microscopic and e...; 关键词：Jilin chondrite Metal nodules Thermal diffusion Shock metamorphism Shear movement Frictional heating

The breakdown of diopside to(Ca,Mg)SiO_(3)perovskite–(Mg,Ca,Fe)SiO_(3)glass–(Mg,Ca)SiO_(3)glass–(Mg,Ca)SiO_(3)majorite in a melt vein the Suizhou L6 chondrite: 《Acta Geochimica》2023年第2期183-194,共12页Xiande Xie Xiangping Gu; The Suizhou meteorite is a heavily shocked and melted vein-containing L6 chondrite.It contains a minor amount of diopside with a(Ca_(0.419)Mg_(0.466)Fe_(0.088))SiO_(3)composition,and a shock-metamorphosed diopside gra...; 关键词：Suizhou chondrite DIOPSIDE Shock metamorphism (Ca Mg)SiO_(3)-perovskite (Mg Ca Fe)SiO_(3)glass (Mg Ca)SiO_(3)glass (Mg Ca)SiO_(3)majorite

The discovery of TiO_(2)-Ⅱ,the α-PbO_(2)-structured high-pressure polymorph of rutile,in the Suizhou L6 chondrite被引量：2: 《Acta Geochimica》2023年第1期1-8,共8页Xiande Xie Xiangping Gu Ming Chen; We report the discovery of TiO_(2)-Ⅱ in the unmelted rock of the shocked Suizhou L6 chondrite.Natural TiO_(2)-Ⅱ was previously found in ultrahigh-pressure metamorphic and mantle-derived rocks,terrestrial impact stru...; 关键词：RUTILE TiO_(2)-Ⅱ High-pressure polymorph Shock metamorphism Suizhou meteorite

Geochemical models of core-mantle differentiation: 《Acta Geochimica》2022年第4期607-624,共18页Qiong Li Wei Du; financially supported by the National Natural Science Foundation of China(NSFC Nos.41773052 and 41973058);the Strategic Priority Research Program of Chinese Academy of Sciences(XDB 41000000);the key research program of frontier sciences of Chinese Academy of Sciences(ZDBS-SSWJSC007-10);preresearch project on Civil Aerospace Technologies by CNSA(D020201)。; The core-mantle differentiation process is one of the most significant events in the Earth’s early history,which profoundly affects the Earth’s internal structure.According to the simple core-mantle differentiation ...; 关键词：Proto-Earth Siderophile element Earth’s building block High-temperature and high-pressure experiment Enstatite chondrite

Oxygen Isotopic Compositions in a Plagioclase-Olivine Inclusion from Ningqiang Similar to Those in Al-rich Chondrules被引量：2: 《Acta Geologica Sinica(English Edition)》2021年第5期1583-1590,共8页DAI Deqiu BAO Haimei LIU Shuang YIN Feng; supported by the Natural Science Foundation of China(Grant Nos.41673070,41103032,41503062);the Hunan Provincial Natural Science Foundation of China(Grant No.2021JJ30242);the Scientific Research Fund of Hunan Provincial Education Department(Grant No.18A204)。; We report the petrology and oxygen isotopic composition,using a Cameca Nano SIMS 50L ion microprobe,of a plagioclase-olivine inclusion,C#1,found in the Ningqiang carbonaceous chondrite.In addition to major phases(plag...; 关键词：meteorite petrology oxygen isotopes CAIs plagioclase–olivine inclusion Al-rich chondrules Ningqiang chondrite Shanxi

Hierarchical MPS-Based Three-Dimensional Geological Structure Reconstruction with Two-Dimensional Image(s)被引量：3: 《Journal of Earth Science》2021年第2期455-467,共13页Weisheng Hou Hengguang Liu Tiancheng Zheng Wenjie Shen Fan Xiao; substantially supported by the National Natural Science Foundation of China(NSFC)Program(Nos.41972302,41772345)。; Multiple-point statistics(MPS)is a useful approach to reconstruct three-dimensional models in the macroscopic or microscopic field.Extracting spatial features for three-dimensional reconstruction from two-dimensional ...; 关键词：multiple-point statistics hierarchical strategy CHONDRITE two-dimensional image(s)

Discovery of Cosmic Spherules from the Mesoproterozoic Strata and its Significance——in Case of the Ming Tombs Area, Beijing: 《Acta Geologica Sinica(English Edition)》2020年第1期38-56,共19页SONG Tianrui ZHENG Ning LIU Yongqing KUANG Hongwei PENG Nan LI Chao TANG Jigang YAN Qinggao GAO Linzhi ZHU Zhicai XIA Xiaoxu WANG Yuchong; granted by National Nature Science Foundation of China(41472082,41402100,49772121,40172044,and 41173065);Institute of Geology,Chinese Academy of Geological Sciences,ChinaGeological Survey(DD20190448 and DD20190370).; This study covers cosmic spherules derived from the Mesoproterozoic Dahongyu Formation in the Ming Tombs area, Beijing. The cosmic spherules include iron oxide cosmic spherules, carbonaceous chondrites, and atomic iro...; 关键词：COSMIC SPHERULES carbonaceous CHONDRITE meteorite PGE Proterozoic STRATA BEIJING impact event

Chemical, isotopic and amino acid composition of Mukundpura CM2.0(CM1) chondrite: Evidence of parent body aqueous alteration: 《Geoscience Frontiers》2019年第2期495-504,共10页N.G.Rudraswami A.K.Naik R.P.Tripathi N.BhANDari S.G.Karapurkar M.Shyam Prasad E.V.S.S.K.Babu U.V.R.Vijaya Sarathi; carried out with the support of MOES-PMN and PLANEX (Physical Research Laboratory, Ahmedabad) programs; The carbonaceous chondrites are intriguing and unique in the sense that they are the only rocks that provide pristine records of the early solar nebular processes. We report here results of a detailed mineralogical, c...; 关键词：CARBONACEOUS CHONDRITE Mukundpura CM ISOTOPE AMINO acid

Insights into chondrule formation process and shock-thermal history of the Dergaon chondrite (H4-5): 《Geoscience Frontiers》2017年第3期413-423,共11页D. Ray S. Ghosh T.K. Goswami M.J. Jobin; Department of Space(Govt.of India); The Dergaon fall represents a shock-melted H4-5 （S5） ordinary chondrite which includes at least ten textural varieties of chondrules and belongs to the high chondrule-matrix ratio type. Our study reveals that the ch...; 关键词：Dergaon chondrite Chondrule Thermal metamorphism Shock metamorphism

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