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The Kumtag meteorite strewn field

文献类型：期刊论文

作者Du, Ke1,7; Li, Shijie1,6; Leya, Ingo5; Smith, Thomas4,5; Zhang, Dongliang3; Wang, Peng2
刊名ADVANCES IN SPACE RESEARCH
出版日期2021-06-15
卷号67期号:12页码:4089-4098
关键词Kumtag desert Strewn field Chondrite meteorite Cosmic-ray exposure age
ISSN号0273-1177
DOI10.1016/j.asr.2021.02.020
英文摘要The Kumtag meteorite strewn field was found in the Kumtag desert, 132 km south of Hami city in the Xinjiang province, China. It is an ellipse of 2.5 x 7.9 km, with a long axis extending along the northeast-southwest direction. The largest individual meteorite of the strewn field weighs about 10 kg; the smallest individual has a mass of only 27 g. In total, more than 100 individuals with a total mass of more than 180 kg were collected. The location and the distribution of the fragments suggest that the Kumtag meteoroid entered the atmosphere in the direction Northeast-Southwest. All meteorites collected in this strewn field are samples from the same unique meteorite shower. The Kumtag meteorite is an H5 ordinary chondrite with a shock stage S2, and a weathering grade W2. The cosmic ray exposure age of Kumtag is 6.7 +/- 0.8 Ma, which is rather typical for H chondrites and which indicates that Kumtag was derived from the massive impact event on its parent body similar to 7 Ma ago. A significant amount of He has been lost during certain unknown processe(s) before the Kumtag meteorite was ejected from its parent body. (C) 2021 COSPAR. Published by Elsevier B.V. All rights reserved.
WOS关键词COLLECTION AREA ; ATACAMA DESERT ; CLASSIFICATION ; RECOVERY ; REDETERMINATION ; CHONDRITES ; ARIZONA ; COUNTY ; FALLS ; FLUX
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB 41000000] ; Chinese Academy of Sciences "Light of West China" Program ; Swiss National Science Foundations[200021_159562]
WOS研究方向Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000652847200012
出版者ELSEVIER SCI LTD
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Chinese Academy of Sciences "Light of West China" Program ; Chinese Academy of Sciences "Light of West China" Program ; Swiss National Science Foundations ; Swiss National Science Foundations ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Chinese Academy of Sciences "Light of West China" Program ; Chinese Academy of Sciences "Light of West China" Program ; Swiss National Science Foundations ; Swiss National Science Foundations ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Chinese Academy of Sciences "Light of West China" Program ; Chinese Academy of Sciences "Light of West China" Program ; Swiss National Science Foundations ; Swiss National Science Foundations ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Chinese Academy of Sciences "Light of West China" Program ; Chinese Academy of Sciences "Light of West China" Program ; Swiss National Science Foundations ; Swiss National Science Foundations
源URL[http://ir.iggcas.ac.cn/handle/132A11/101230]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Li, Shijie
作者单位1.Chinese Acad Sci, Inst Geochem, Ctr Lunar & Planetary Sci, Guiyang 550081, Peoples R China
2.Sixth Geol Brigade, Div Mines & Geol, Hami 839000, Peoples R China
3.Cent South Univ, Sch Geosci & Infophys, Minist Educ, Key Lab Metallogen Predict Nonferrous Met, Changsha 410083, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
5.Univ Bern, Phys Inst, CH-3012 Bern, Switzerland
6.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei 230026, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Du, Ke,Li, Shijie,Leya, Ingo,et al. The Kumtag meteorite strewn field[J]. ADVANCES IN SPACE RESEARCH,2021,67(12):4089-4098.
APA Du, Ke,Li, Shijie,Leya, Ingo,Smith, Thomas,Zhang, Dongliang,&Wang, Peng.(2021).The Kumtag meteorite strewn field.ADVANCES IN SPACE RESEARCH,67(12),4089-4098.
MLA Du, Ke,et al."The Kumtag meteorite strewn field".ADVANCES IN SPACE RESEARCH 67.12(2021):4089-4098.

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来源：地质与地球物理研究所

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