气候变化领域集成服务门户(CCPortal): Initial India-Asia Continental Collision and Foreland Basin Evolution in the Tethyan Himalaya of Tibet: Evidence from Stratigraphy and Paleontology

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DOI	10.1086/663876
	Initial India-Asia Continental Collision and Foreland Basin Evolution in the Tethyan Himalaya of Tibet: Evidence from Stratigraphy and Paleontology
	Zhang, Qinghai; Willems, Helmut; Ding, Lin; Graefe, Kai-Uwe; Appel, Erwin
通讯作者	Zhang, QH (通讯作者)
发表日期	2012
ISSN	0022-1376
起始页码	175
结束页码	189
卷号	120 期号:2
英文摘要	The onset of the India-Asia continent-continent collision in Tibet was accompanied by the elimination of oceanic crust and the development of a peripheral foreland basin on the subducting continental crust. However, owing to the progressively southward migration of this foreland basin, the appearance of flexural uplift (forebulge) predated flexural subsidence (foredeep) at the distal location, such as at Gamba and Tingri in the southern Tethyan Himalaya. Consequently, to trace and date this forebulge may provide a better constraint on the India-Asia collision. At Gamba and Tingri, our studies on the stratigraphy, paleontology, and paleoenvironment show that depositional cessation of the limestones occurred at Shallow Benthic Zone 7 (SBZ 7, similar to 54-55 Ma) in the Gamba area and at the base of SBZ 10 (similar to 52.8 Ma) in the Tingri area. At Gamba, a conglomerate layer within the upper Zongpu Formation is suggested to represent the formation of the forebulge at the onset of the foreland basin, and the coincidence of the conglomerate layer with the Carbon Isotope Excursion (CIE) provides a precise age of similar to 56 Ma (the Paleocene/Eocene boundary) for the possible initial India-Asia continental collision. Our results not only provide a reliable and precise age for the India-Asia collision but, for the first time, report time equivalence between the India-Asia collision and the CIE in Tibet.
关键词	LADAKH HIMALAYA SOUTHERN TIBET SUBSIDENCE HISTORY NORTHWEST INDIA EOCENE PALEOCENE AGE PROVENANCE EURASIA RECORD
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000301332700004
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/258035
推荐引用方式 GB/T 7714	Zhang, Qinghai,Willems, Helmut,Ding, Lin,et al. Initial India-Asia Continental Collision and Foreland Basin Evolution in the Tethyan Himalaya of Tibet: Evidence from Stratigraphy and Paleontology[J]. 中国科学院青藏高原研究所,2012,120(2).
APA	Zhang, Qinghai,Willems, Helmut,Ding, Lin,Graefe, Kai-Uwe,&Appel, Erwin.(2012).Initial India-Asia Continental Collision and Foreland Basin Evolution in the Tethyan Himalaya of Tibet: Evidence from Stratigraphy and Paleontology.JOURNAL OF GEOLOGY,120(2).
MLA	Zhang, Qinghai,et al."Initial India-Asia Continental Collision and Foreland Basin Evolution in the Tethyan Himalaya of Tibet: Evidence from Stratigraphy and Paleontology".JOURNAL OF GEOLOGY 120.2(2012).