Apatite fission track evidence for Neogene uplift in the eastern Kunlun Mountains, northern Qinghai-Tibet Plateau, China

	Apatite fission track evidence for Neogene uplift in the eastern Kunlun Mountains, northern Qinghai-Tibet Plateau, China
	Yuan WM(袁万明); Dong JQ(董金泉); Wang SC(王世成); Yuan, WM; Dong, JQ; Wang, SC; Carter, A
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2006
卷号	27 期号:6 页码:847-856
关键词	apatite fission track Neogene exhumation Kunlun Mountains Qaidam Basin
通讯作者	Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Anal Tech, Beijing 100039, Peoples R China ; Univ London Birkbeck Coll, Res Sch Earth Sci, London WC1E 6BT, England
英文摘要	Forty-one apatite fission track ages (AFT) were determined on samples collected along a N-S section of the eastern Kunlun Mountains across the Middle and South Kunlun Faults between Buqingshan and Dulan. Measured AFT ages lie between 25 +/- 2 and 130 +/- 10 Ma, and all are significantly younger than their host rock formation or sediment deposition ages. Modelling the AFT data identifies a two stage regional cooling history that spans the last 100 Myrs. The earliest cooling phase occurred between the late Jurassic and early Tertiary and involved a moderate level of cooling between 20 and 40 degrees C, equivalent to average exhumation rates of = 15 m/Myr. The second phase of cooling took place from similar to 20 Ma with cooling rates increasing tenfold. Average exhumation rates for this period are estimated to be in the range of similar to 100-150 m/Myr. The first stage of protracted cooling is consistent with regional evidence from the Qiantang and Lhasa terrans where previous studies have noted low rates of denudation in relation to a back-arc extensional setting. The more recent acceleration in cooling seen in the Kunlun data coincides with an increase in sedimentation rates in the adjacent Qaidam Basin. This points to a phase of Neogene uplift and increased erosion of the Kunlun Range, although contemporaneous monsoon strengthening may also have had a role. (c) 2006 Elsevier Ltd. All rights reserved.
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:000240883900008
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238601]
专题	高能物理研究所_多学科研究中心高能物理研究所_加速器中心
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,Dong JQ,Wang SC,et al. Apatite fission track evidence for Neogene uplift in the eastern Kunlun Mountains, northern Qinghai-Tibet Plateau, China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2006,27(6):847-856.
APA	袁万明.,董金泉.,王世成.,Yuan, WM.,Dong, JQ.,...&Carter, A.(2006).Apatite fission track evidence for Neogene uplift in the eastern Kunlun Mountains, northern Qinghai-Tibet Plateau, China.JOURNAL OF ASIAN EARTH SCIENCES,27(6),847-856.
MLA	袁万明,et al."Apatite fission track evidence for Neogene uplift in the eastern Kunlun Mountains, northern Qinghai-Tibet Plateau, China".JOURNAL OF ASIAN EARTH SCIENCES 27.6(2006):847-856.