东喜马拉雅构造结气候构造作用下热史演化的~(40)Ar/~(39)Ar年代学记录

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	东喜马拉雅构造结气候构造作用下热史演化的~(40)Ar/~(39)Ar年代学记录; Cooling history constrained by detrital Ar-40/Ar-39 geochronology in Eastern Himalaya Syntaxis: Implications for climatic and tectonic records.
	龚俊峰 ; 季建清 ; 周晶 ; 陈建军 ; 庆建春 ; 孙东霞 ; 韩宝福 ; 钟大赉
刊名	岩石学报
	2009
关键词	东喜马拉稚构造结激光~(40) Ar~(39) Ar年代学气候构造 Eastern Himalaya Syntaxis Laser Ar-40/Ar-39 geochronology Climate Tectonics
英文摘要	以喜马拉雅山系为典型实例,究竟是气候作用还是构造作用引起山体隆升的问题已经成为地球系统科学研究中的重要前沿问题。无论是气候因素还是构造因素引起山体隆升,二者都与一个共同的地表过程——剥蚀作用相关,剥蚀作用对山体中地质体的影响可以用岩石矿物经历的热史演化来描述,所以,在造山作用研究中,山体或山脉的热史演化是揭开地质体经历地质过程、山体隆升研究的重要途径。利用河砂组成矿物来研究流域的地质过程和构造演化已经成为现代地质科学的重要手段。本文采集了雅鲁藏布江下游墨脱县以南约50 km处地东河段内的现代河砂,对其中的角闪石、白云母、黑云母及钾长石等四种矿物进行了高精度单颗粒激光~(40)Ar-~(39)A...; As one of the most typical examples, Himalaya orogen is the focus in studying an important and front dispute in Earth science. It is a paradox problem that the uplift of mountains is caused by climatic process or by tectonic movement. Both climatic and tectonic uplift are linked to surface erosion, the influence of which to geological system call be described by means of the cooling history of minerals or rocks. So the cooling history of it mountain range is the key to uncover the geological process of rising mountains. Research on minerals front river sediments is one of the most useful methods in modern geological sciences to reveal the geological process and the tectonic evolution. For the purpose described above, newly deposited fine-grain river sand was sampled at Didong reach, which locates around the lower reach of Yalung-Zangbo River, to obtain high precision Ar-40/Ar-39 geochronological data on single crystals of hornblende, muscovite, biotite and K-feldspar collected from the sample, and a statistical diagram of age probability is shown in the contrast figure. The high precision Ar-40/Ar-39 geochronological data on single crystals of minerals from sediments at Didong reach reveals tire cooling history of rocks in the drainage area of Yalung-Zangbo Great Canyon. According to the statistical results, the episodes of cooling history of tire drainage area of Yaluang-Zangbo Great. Canyon can he identified as 70 similar to 69,61 similar to 60,43 similar to 42,35 similar to 34, 26 similar to 25, 25 similar to 23, 22 similar to 20, 20 similar to 18, 17 similar to 14, 12 similar to 11, 8 similar to 6, 5 similar to 4 and < 2Ma respectively. The contrast of age statistical results against the Figure showing the changes in rate and angle of convergence during India plate has been colliding against Eurasian plate since Late Mesozoic shows that probably the ages of 70 similar to 69, 61 similar to 60, 43 similar to 42, 35 similar to 34, 22 similar to 20 and 12 similar to 11 Ma are records of tectonic events of changes in rate and angle of convergence of the two continent, while the contrast of the age statistical results against the diagram consisting of global deep-sea delta O-18 and delta C-13 records suggests that the ages of 26 similar to 25, 25 similar to 23, 17 similar to 14, 8 similar to 6, 5 similar to 4 and <2Ma seem to be the records of global climate change. The Ar-40/Ar-39 geocbronological data published in this paper reveals the interaction of tectonic and climatic in rock uplifting in Eastern Himalaya Syntaxis.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000264895900014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 2; 03; 621-635; 25
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/49973]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	龚俊峰,季建清,周晶,等. 东喜马拉雅构造结气候构造作用下热史演化的~(40)Ar/~(39)Ar年代学记录, Cooling history constrained by detrital Ar-40/Ar-39 geochronology in Eastern Himalaya Syntaxis: Implications for climatic and tectonic records.[J]. 岩石学报,2009.
APA	龚俊峰.,季建清.,周晶.,陈建军.,庆建春.,...&钟大赉.(2009).东喜马拉雅构造结气候构造作用下热史演化的~(40)Ar/~(39)Ar年代学记录.岩石学报.
MLA	龚俊峰,et al."东喜马拉雅构造结气候构造作用下热史演化的~(40)Ar/~(39)Ar年代学记录".岩石学报 (2009).