气候变化领域集成服务门户(CCPortal): Provenance of the Upper Cretaceous to Lower Tertiary Sedimentary Relicts in the Renbu Melange Zone, within the Indus-Yarlung Suture Zone

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DOI	10.1086/680207
	Provenance of the Upper Cretaceous to Lower Tertiary Sedimentary Relicts in the Renbu Melange Zone, within the Indus-Yarlung Suture Zone
	Li, Guangwei; Sandiford, Mike; Boger, Steven; Liu, Xiaohan; Wei, Lijie
通讯作者	Li, GW (通讯作者)
发表日期	2015
ISSN	0022-1376
EISSN	1537-5269
起始页码	39
结束页码	54
卷号	123 期号:1
英文摘要	The Upper Cretaceous to Lower Tertiary sediments in the Indus-Yarlung suture zone provide critical records on the history of accretion along the southern margin of Asia prior to, and during, the India-Asia collision. In this article, we report field and petrographic observations, in situ detrital zircon U-Pb ages, Lu-Hf isotopic analyses, and Cr-spinel electron microprobe data from the Upper Cretaceous to Lower Tertiary sedimentary rocks of the Renbu melange zone in east Xigaze, southern Tibet. The Renbu melange zone consists of two serpentinite melange subzones separated by a mud-matrix melange. Using similarities found in the compositions of detrital Cr-spinels and detrital zircon U-Pb ages, we propose to correlate the northern Renbu melange subzone with the upper part of the Xigaze forearc basin. Detrital zircons from sandstones in the southern Renbu melange subzone indicate an influx of Cretaceous-early Cenozoic zircon grains with juvenile Hf isotopic compositions, suggesting a provenance from the Lhasa terrane, especially the Gangdese arc. Compared to the melange in the western Xigaze, our new results show that much younger sediments were deposited on the top of the accretionary wedge, with the youngest U-Pb age cluster including six single grains in the range of 64-53 Ma and a large peak at 67 Ma. Our results support the idea that the foreland basin developed along the Indus-Yarlung suture during the India-Asia collision.
关键词	ZIRCON U-PB FORE-ARC BASIN SOUTHERN TIBET IMPLICATIONS DETRITAL ZIRCON LHASA TERRANE FACIES ARCHITECTURE KANGMAR DOME EVOLUTION GEOCHRONOLOGY CONSTRAINTS
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000349556600003
来源期刊	JOURNAL OF GEOLOGY
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/258487
推荐引用方式 GB/T 7714	Li, Guangwei,Sandiford, Mike,Boger, Steven,et al. Provenance of the Upper Cretaceous to Lower Tertiary Sedimentary Relicts in the Renbu Melange Zone, within the Indus-Yarlung Suture Zone[J]. 中国科学院青藏高原研究所,2015,123(1).
APA	Li, Guangwei,Sandiford, Mike,Boger, Steven,Liu, Xiaohan,&Wei, Lijie.(2015).Provenance of the Upper Cretaceous to Lower Tertiary Sedimentary Relicts in the Renbu Melange Zone, within the Indus-Yarlung Suture Zone.JOURNAL OF GEOLOGY,123(1).
MLA	Li, Guangwei,et al."Provenance of the Upper Cretaceous to Lower Tertiary Sedimentary Relicts in the Renbu Melange Zone, within the Indus-Yarlung Suture Zone".JOURNAL OF GEOLOGY 123.1(2015).