干旱区生态环境知识资源中心(Arid): The meteorite flux of the past 2 m.y. recorded in the Atacama Desert

Arid

DOI	10.1130/G45831.1
	The meteorite flux of the past 2 m.y. recorded in the Atacama Desert
	Drouard, A.1,2; Gattacceca, J.2; Hutzler, A.3; Rochette, P.2; Braucher, R.2; Bourles, D.2; Gounelle, M.4,5; Morbidelli, A.6; Debaille, V 7; Van Ginneken, M.7,8,9; Valenzuela, M.10,11; Quesnel, Y.2; Martinez, R.12; Aumaitre, Georges ; Keddadouche, Karim
通讯作者	Drouard, A.
来源期刊	GEOLOGY
ISSN	0091-7613
EISSN	1943-2682
出版年	2019
卷号	47 期号:7 页码:673-676
英文摘要	The evolution of the meteorite flux to Earth can be studied by determining the terrestrial ages of meteorites collected in hot deserts. We measured the terrestrial ages of 54 stony meteorites from the El Medano area, in the Atacama Desert, Chile, using the cosmogenic nuclide Cl-36. With an average age of 710 ka, this collection is the oldest collection of nonfossil meteorites at Earth's surface. This allows both determination of the average meteorite flux intensity over the past 2 m.y. (222 meteorites larger than 10 g per km(2) per m.y.) and discussion of its possible compositional variability over the Quaternary Period. A change in the flux composition, with more abundant H chondrites, occurred between 1 and 0.5 Ma, possibly due to the direct delivery to Earth of a meteoroid swarm from the asteroid belt.
类型	Article
语种	英语
国家	France ; USA ; Belgium ; Chile
开放获取类型	Green Published, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000472711900022
WOS关键词	ORDINARY CHONDRITIC METEORITES ; COLLECTION AREA ; ASTEROID BELT ; EVOLUTION ; EARTH ; AGES
WOS类目	Geology
WOS研究方向	Geology
来源机构	French National Research Institute for Sustainable Development ; E17
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215983
作者单位	1.Aix Marseille Univ, CNRS, CNES, LAM, F-13013 Marseille, France; 2.Aix Marseille Univ, CNRS, IRD, Coll France,Inst Rech Agron INRA,CEREGE, F-13545 Aix En Provence, France; 3.Lunar & Planetary Inst, 3303 NASA Rd 1, Houston, TX 77058 USA; 4.Sorbonne Univ, Museum Natl Hist Nat, IMPMC, CNRS,UPMC, 57 Rue Cuvier, F-75005 Paris, France; 5.IRD, 57 Rue Cuvier, F-75005 Paris, France; 6.Univ Cote dAzur, UMR 7293, Lab Lagrange, CNRS,OCA, F-06304 Nice, France; 7.Univ Libre Bruxelles, Lab G Time, B-1050 Brussels, Belgium; 8.Vrije Univ Brussel, Analyt Environm & Geochem AMGC, B-1050 Brussels, Belgium; 9.Royal Belgian Inst Nat Sci, Geol Survey Belgium, B-1000 Brussels, Belgium; 10.Serv Nacl Geol & Mineria SERNAGEOMIN, Santiago, Chile; 11.Millennium Inst Astrophys MAS, Santiago, Chile; 12.Museo Meteorito, San Pedro De Atacama, Antofagasta, Chile
推荐引用方式 GB/T 7714	Drouard, A.,Gattacceca, J.,Hutzler, A.,et al. The meteorite flux of the past 2 m.y. recorded in the Atacama Desert[J]. French National Research Institute for Sustainable Development, E17,2019,47(7):673-676.
APA	Drouard, A..,Gattacceca, J..,Hutzler, A..,Rochette, P..,Braucher, R..,...&Keddadouche, Karim.(2019).The meteorite flux of the past 2 m.y. recorded in the Atacama Desert.GEOLOGY,47(7),673-676.
MLA	Drouard, A.,et al."The meteorite flux of the past 2 m.y. recorded in the Atacama Desert".GEOLOGY 47.7(2019):673-676.