An important spreading event of the Neo-Tethys Ocean during the late;Jurassic and early Cretaceous: Evidence from zircon U-Pb SHRIMP dating;on diabase in Nagarze, southern Tibet

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质科学院矿产资源研究所

	An important spreading event of the Neo-Tethys Ocean during the late;Jurassic and early Cretaceous: Evidence from zircon U-Pb SHRIMP dating;on diabase in Nagarze, southern Tibet
	Jiang Sihong; Nie Fengjun; Hu Peng; Liu Yan
刊名	ACTA GEOLOGICA SINICA-ENGLISH EDITION
	2006
卷号	80 期号:4 页码:522-527
关键词	diabase zircon U-PbSHRIMP dating spreading event Neo-Tethys Nagarze southern Tibet
ISSN号	1000-9515
英文摘要	Widely distributed in Gyangze-Chigu area, southern Tibet, NW- and nearly E-W-trending diabase(gabbro)-gabbro diorite dykes are regarded as the product of the large-scale spreading of the late Neo-Tethys Ocean. In order to constrain the emplacement age of these dykes, zircons of two samples from diabases in Nagarze were dated by using the U-Pb SHRIMP method. Two nearly the same weighted mean Pb-206/U-238 ages were obtained in this paper, which are 134.9 +/- 1.8 Ma (MSWD = 0.65) and 135.5 +/- 2.1 Ma (MSWD = 1.40), respectively. They not only represent the crystallization age of the diabase, but also documented an important spreading event of the Neo-Tethys Ocean during the late Jurassic and early Cretaceous. This dating result is of great significance to reconstruct the temporal framework of the late Neo-Tethys Ocean in the Qinghai-Tibet Plateau.
学科主题	地层学与地史学
WOS关键词	CONSTRAINTS ; LEUKOGRANITES ; BASALTS ; AGE
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC CHINA
WOS记录号	WOS:000240249700008
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38145]
专题	中国地质科学院矿产资源研究所
作者单位	Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China.
推荐引用方式 GB/T 7714	Jiang Sihong,Nie Fengjun,Hu Peng,et al. An important spreading event of the Neo-Tethys Ocean during the late;Jurassic and early Cretaceous: Evidence from zircon U-Pb SHRIMP dating;on diabase in Nagarze, southern Tibet[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2006,80(4):522-527.
APA	Jiang Sihong,Nie Fengjun,Hu Peng,&Liu Yan.(2006).An important spreading event of the Neo-Tethys Ocean during the late;Jurassic and early Cretaceous: Evidence from zircon U-Pb SHRIMP dating;on diabase in Nagarze, southern Tibet.ACTA GEOLOGICA SINICA-ENGLISH EDITION,80(4),522-527.
MLA	Jiang Sihong,et al."An important spreading event of the Neo-Tethys Ocean during the late;Jurassic and early Cretaceous: Evidence from zircon U-Pb SHRIMP dating;on diabase in Nagarze, southern Tibet".ACTA GEOLOGICA SINICA-ENGLISH EDITION 80.4(2006):522-527.