Apatite fission track constraints on the Neogene tectono-thermal history of Nimu area, southern Gangdese terrane, Tibet Plateau

	Apatite fission track constraints on the Neogene tectono-thermal history of Nimu area, southern Gangdese terrane, Tibet Plateau
	Yuan, WM; Deng, J; Zheng, QG; Dong, JQ; Bao, ZK; Eizenhoefer, PR; Xu, XT; Huang, ZX; Dong JQ(董金泉); Bao ZK(保增宽)
刊名	ISLAND ARC
	2009
卷号	18 期号:3 页码:488-495
关键词	cooling-uplifting fission track Gangdese terrane tectonics thermal history
通讯作者	[Yuan, Wanming ; Deng, Jun ; Zheng, Qiugen ; Xu, Xiaotong ; Huang, Zhixin] China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China ; [Dong, Jinquan ; Bao, Zengkuan] Chinese Acad Sci, Inst High Energy Phys, Key Lab Nucl Anal Tech, Beijing 100039, Peoples R China ; [Eizenhoefer, Paul R.] Univ Heidelberg, Inst Geosci, D-69120 Heidelberg, Germany
英文摘要	Apatite fission track dating of five samples from Cenozoic volcanic strata in the Nimu District in the southern Gangdese Terrane exhibits single population grain ages with a single mean age and associated central ages ranging from 6.8 +/- 0.6 Ma to 9.7 +/- 1.2 Ma. Mean track lengths are between 12.9 +/- 1.7 mu m and 14.2 +/- 2.3 mu m with a single peak characteristic of a single thermal event. The newly documented ages coincide well with the age of high sedimentation rates in the North Tibet Basin that resulted from a 9-5 Ma compressional event. Track length modeling allows three stages to be identified in the sample cooling. The first stage (12-8 Ma) records a period of relative stability with little, if any, cooling at temperatures of 120-110 degrees C suggesting this region had low relief. The second stage (8-2 Ma) reflects rapid cooling with temperatures decreasing from similar to 110 degrees C to surface temperatures of similar to 15 degrees C. This stage can be related to far-field effects of the Himalayan collision, which probably generated the surface uplift and relief that defines the present-day Gangdese Mountains. The mean uplift rate of this period is estimated to be 1.41-0.95 mm/y with total uplift reaching similar to 5900 m. The final stage is related to surface evolution since the Pliocene.
学科主题	Geology
类目[WOS]	Geosciences, Multidisciplinary
研究领域[WOS]	Geology
原文出处	SCI
语种	英语
WOS记录号	WOS:000269057400006
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/237690]
专题	高能物理研究所_多学科研究中心中国科学院高能物理研究所_人力资源处
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Yuan, WM,Deng, J,Zheng, QG,et al. Apatite fission track constraints on the Neogene tectono-thermal history of Nimu area, southern Gangdese terrane, Tibet Plateau[J]. ISLAND ARC,2009,18(3):488-495.
APA	Yuan, WM.,Deng, J.,Zheng, QG.,Dong, JQ.,Bao, ZK.,...&保增宽.(2009).Apatite fission track constraints on the Neogene tectono-thermal history of Nimu area, southern Gangdese terrane, Tibet Plateau.ISLAND ARC,18(3),488-495.
MLA	Yuan, WM,et al."Apatite fission track constraints on the Neogene tectono-thermal history of Nimu area, southern Gangdese terrane, Tibet Plateau".ISLAND ARC 18.3(2009):488-495.