气候变化领域集成服务门户(CCPortal): The Ancestral Lhasa River: A Late Cretaceous trans-arc river that drained the proto-Tibetan Plateau

CCPortal

DOI	10.1130/G46823.1
	The Ancestral Lhasa River: A Late Cretaceous trans-arc river that drained the proto-Tibetan Plateau
	Laskowski, Andrew K.; Orme, Devon A.; Cai, Fulong; Ding, Lin
通讯作者	Laskowski, AK (通讯作者)
发表日期	2019
ISSN	0091-7613
EISSN	1943-2682
起始页码	1029
结束页码	1033
卷号	47 期号:11
英文摘要	Late Cretaceous trench basin strata were deposited in the subduction zone that consumed Neo-Tethyan oceanic lithosphere along the southern margin of the proto-Tibetan Plateau. We conducted detrital zircon (DZ) U-Pb geochronology on six trench basin samples (n = 1716) collected near Denggar, Tibet (similar to 500 km west of Lhasa), to assess the provenance of these rocks and reconstruct Late Cretaceous sediment transport pathways. They contained DZ ages that point to a unique source around Lhasa city, north of the Late Cretaceous Gangdese magmatic arc. The modern Lhasa River catchment contains the requisite sources, and its main trunk transects the Gangdese magmatic arc, joining with the Yarlung River at a barbed junction at the India-Asia suture. We infer that the Lhasa River is an ancient feature that transported sediment to the subduction zone in Late Cretaceous time and persisted during India-Asia collision.
关键词	XIGAZE FORE-ARC TSANGPO SUTURE ZONE U-PB GEOCHRONOLOGY SOUTHERN TIBET DETRITAL ZIRCON OCEANIC SUBDUCTION EVOLUTION PROVENANCE ACCRETION TERRANE
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000491287900005
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/259442
推荐引用方式 GB/T 7714	Laskowski, Andrew K.,Orme, Devon A.,Cai, Fulong,et al. The Ancestral Lhasa River: A Late Cretaceous trans-arc river that drained the proto-Tibetan Plateau[J]. 中国科学院青藏高原研究所,2019,47(11).
APA	Laskowski, Andrew K.,Orme, Devon A.,Cai, Fulong,&Ding, Lin.(2019).The Ancestral Lhasa River: A Late Cretaceous trans-arc river that drained the proto-Tibetan Plateau.GEOLOGY,47(11).
MLA	Laskowski, Andrew K.,et al."The Ancestral Lhasa River: A Late Cretaceous trans-arc river that drained the proto-Tibetan Plateau".GEOLOGY 47.11(2019).