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DOI	10.1007/s00531-011-0656-0
	Exact timing of granulite metamorphism in the Namche-Barwa, eastern Himalayan syntaxis: new constrains from SIMS U-Pb zircon age
	Su, Wen; Zhang, Ming; Liu, Xiaohan; Lin, Jinfu; Ye, Kai; Liu, Xin
通讯作者	Su, W (通讯作者)
发表日期	2012
ISSN	1437-3254
EISSN	1437-3262
起始页码	239
结束页码	252
卷号	101 期号:1
英文摘要	Zircon grains separated from 2 granulites from the eastern Himalaya were investigated by Raman spectroscopy, cathodoluminescence imaging, and secondary ion mass spectrometry. These grains have a thin homogeneous rim and an oscillatory inner zone domain with or without a relict inherited core. Garnet, kyanite, and rutile inclusions were identified within only the rim domain of zircon grains, indicating that the rim had formed during peak granulite-facies metamorphism. U-Pb zircon data record three distinct age populations: 1,805 Ma (for the inherited core), ca. 500 Ma (oscillatory inner zone), as well as 24-25 Ma and ca. 18 Ma (for the metamorphic rim). These new precision ages suggest that the peak metamorphic age for the HP granulite is at ca. 24-25 Ma, and subsequent amphibolite-facies retrograde metamorphism occurred at ca. 18 Ma.
关键词	HIGH-PRESSURE GRANULITES SHAN-RED RIVER TECTONIC EVOLUTION SOUTHERN TIBET ISOTOPIC CONSTRAINTS FACIES METAMORPHISM GANGDESE BATHOLITH SOUTHEASTERN TIBET WESTERN HIMALAYA TRACE-ELEMENTS
英文关键词	Granulite; SIMS U-Pb zircon age; High-pressure metamorphism; Himalaya
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000298652900015
来源期刊	INTERNATIONAL JOURNAL OF EARTH SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258065
推荐引用方式 GB/T 7714	Su, Wen,Zhang, Ming,Liu, Xiaohan,et al. Exact timing of granulite metamorphism in the Namche-Barwa, eastern Himalayan syntaxis: new constrains from SIMS U-Pb zircon age[J]. 中国科学院青藏高原研究所,2012,101(1).
APA	Su, Wen,Zhang, Ming,Liu, Xiaohan,Lin, Jinfu,Ye, Kai,&Liu, Xin.(2012).Exact timing of granulite metamorphism in the Namche-Barwa, eastern Himalayan syntaxis: new constrains from SIMS U-Pb zircon age.INTERNATIONAL JOURNAL OF EARTH SCIENCES,101(1).
MLA	Su, Wen,et al."Exact timing of granulite metamorphism in the Namche-Barwa, eastern Himalayan syntaxis: new constrains from SIMS U-Pb zircon age".INTERNATIONAL JOURNAL OF EARTH SCIENCES 101.1(2012).