| Thermal and Collision History of Jilin（H5） and Qingzhen（EH3） Chondrites |
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| 引用本文： | 谢先德,黄婉康.Thermal and Collision History of Jilin（H5） and Qingzhen（EH3） Chondrites[J].中国地球化学学报,1991,10(2):109-119. |
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| 作者姓名： | 谢先德 黄婉康 |
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| 作者单位： | InstituteofGeochemistry,AcademiaSinica |
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| 摘 要： | This paper deals with the effects of thermal and collision events which had been experienced by the Jilin(H5) and Qingzhen(EH3) chondrites before they fell to the earth .The HRTEM and opti-cal microscopic investigations show that the Jilin chondrite has undergone more extensive thermal heating and two stages of collision,while the Qingzhen chondrite has experienced weak thermal events after the accretion of its parent body and one stage of moderate collision.The schematic dia-grams of the process of formation and evolution of these two meteorites are given in the present pa-per.
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| 关 键 词： | 球粒状陨石 碰撞 热力学 高分辨率透射电子显微术 同位素年代学 地球 |
Thermal and collision history of Jilin (H5) and Qingzhen (EH3) chondrites |
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| Xie Xiande,Huang Wankang.Thermal and collision history of Jilin (H5) and Qingzhen (EH3) chondrites[J].Chinese Journal of Geochemistry,1991,10(2):109-119. |
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| Authors: | Xie Xiande Huang Wankang |
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| Institution: | (1) Institute of Geochemistry, Academia Sinica, China |
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| Abstract: | This paper deals with the effects of thermal and collision events which had been experienced by the Jilin (H5) and Qingzhen
(EH3) chondrites before they fell to the earth. The HRTEM and optical microscopic investigations show that the Jilin chondrite
has undergone more extensive thermal heating and two stages of collision, while the Qingzhen chondrite has experienced weak
thermal events after the accretion of its parent body and one stage of moderate collision. The schematic diagrams of the process
of formation and evolution of these two meteorites are given in the present paper. |
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