气候变化领域集成服务门户(CCPortal): Triassic continental subduction in central Tibet and Mediterranean-style closure of the Paleo-Tethys Ocean

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DOI	10.1130/G24435A.1
	Triassic continental subduction in central Tibet and Mediterranean-style closure of the Paleo-Tethys Ocean
	Pullen, Alex; Kapp, Paul; Gehrels, George E.; Vervoort, Jeff D.; Ding, Lin
通讯作者	Pullen, A (通讯作者)
发表日期	2008
ISSN	0091-7613
EISSN	1943-2682
起始页码	351
结束页码	354
卷号	36 期号:5
英文摘要	The Qiangtang metamorphic belt (QMB) in central Tibet is one of the largest and most recently documented high-pressure (HP) to near-ultrahigh-pressure (near-UHP) belts on Earth. Lu-Hf ages of eclogite- and blueschist-facies rocks within the QMB are 244-223 Ma, indistinguishable from the age of UHP metamorphism in the Qinling-Dabie orogen. Results of a U-Pb detrital zircon study suggest that protolitbs of the QMB include upper Paleozoic Qiangtang continental margin strata and sandstones that were derived from a Paleozoic arc terrane that developed within the Paleo-Tethys Ocean to the north. We attribute QMB HP metamorphism to continental collision between the Qiangtang terrane and a Paleo-Tethys arc terrane. This collision, and the coeval South China-North China collision, may have slowed convergence between Laurasia and Gondwana-derived terranes and initiated Mediterranean-style rollback and backarc basin development within much of the remnant Palleo-Tethys Ocean realm.
关键词	QIANGTANG METAMORPHIC BELT SOUTH CHINA COLLISION TECTONIC EVOLUTION GEOLOGICAL SIGNIFICANCE NORTHERN TIBET FOLD BELT EASTERN GEOCHRONOLOGY PLATEAU DABIE
英文关键词	Tibet; Qiangtang; eclogite; Paleo-Tethys; continental subduction; rollback
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000255853300004
来源期刊	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/257580
推荐引用方式 GB/T 7714	Pullen, Alex,Kapp, Paul,Gehrels, George E.,et al. Triassic continental subduction in central Tibet and Mediterranean-style closure of the Paleo-Tethys Ocean[J]. 中国科学院青藏高原研究所,2008,36(5).
APA	Pullen, Alex,Kapp, Paul,Gehrels, George E.,Vervoort, Jeff D.,&Ding, Lin.(2008).Triassic continental subduction in central Tibet and Mediterranean-style closure of the Paleo-Tethys Ocean.GEOLOGY,36(5).
MLA	Pullen, Alex,et al."Triassic continental subduction in central Tibet and Mediterranean-style closure of the Paleo-Tethys Ocean".GEOLOGY 36.5(2008).