气候变化领域集成服务门户(CCPortal): Multi-stage India-Asia collision: Paleomagnetic constraints from Hazara-Kashmir syntaxis in the western Himalaya

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DOI	10.1130/B36116.1
	Multi-stage India-Asia collision: Paleomagnetic constraints from Hazara-Kashmir syntaxis in the western Himalaya
	Jadoon, Umar Farooq; Huang, Baochun; Shah, Syed Anjum; Rahim, Yasin; Khan, Ahsan Ali; Bibi, Asma
通讯作者	Huang, BC (通讯作者)
发表日期	2022
ISSN	0016-7606
EISSN	1943-2674
起始页码	1109
结束页码	1128
卷号	134 期号:5-6
英文摘要	The India-Asia collision is the most spectacular, recent, and still active tectonic event of the Earth's history, leading to the uplift of the Himalayan-Tibetan orogen, which has been explained through several hyposuch as how and when it occurred. Here we report a paleomagnetic study of CretaceousTertiary marine sediments from the Tethyan Himalaya (TH) in the Hazara area, north Pakistan, which aims to constrain timing for the onset of the India-Asia collision and to confirm the validity of already proposed models, particularly in western Himalaya's perspective. Our results suggest that the TH was located at a paleolatitude of 8.5 degrees S +/- 3.8 degrees and 13.1 degrees N +/- 3.8 degrees during the interval of ca. 84-79 Ma and 59-56 Ma, respectively. A comparison between paleopoles obtained from the current study and coeval ones of the India Plate indicates that the TH rifted from Greater India before the Late Cretaceous, generating the Tethys Himalaya Basin (THB). Our findings support a model for a multi-stage collision involving at least two major subduction systems. A collision of the TH with the Trans-Tethyan subduction system (TTSS) began first in Late CretaceousEarly Paleocene times (ca. 65 Ma), followed by a later collision with Asia at 55-52 Ma. The onset of the collision between the TH (plus TTSS) and Asia could not have occurred earlier than 59-56 Ma in the western collided with the TH, resulting in the diachronous closure of the THB between ca. 50 and ca. 40 Ma from west to east. These findings are consistent with geological and geochemical evidence and have a broad implication for plate reconfigurations, global climate, and biodiversity of collisional processes.
关键词	CENOZOIC TECTONIC EVOLUTION SOUTHERN TIBET EVIDENCE CRETACEOUS RED-BEDS LHASA TERRANE KOHISTAN ARC VOLCANIC-ROCKS NORTH-PAKISTAN U-PB CONTINENTAL COLLISION GEOLOGICAL EVOLUTION
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000796199300002
来源期刊	GEOLOGICAL SOCIETY OF AMERICA BULLETIN
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/260636
推荐引用方式 GB/T 7714	Jadoon, Umar Farooq,Huang, Baochun,Shah, Syed Anjum,et al. Multi-stage India-Asia collision: Paleomagnetic constraints from Hazara-Kashmir syntaxis in the western Himalaya[J]. 中国科学院青藏高原研究所,2022,134(5-6).
APA	Jadoon, Umar Farooq,Huang, Baochun,Shah, Syed Anjum,Rahim, Yasin,Khan, Ahsan Ali,&Bibi, Asma.(2022).Multi-stage India-Asia collision: Paleomagnetic constraints from Hazara-Kashmir syntaxis in the western Himalaya.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,134(5-6).
MLA	Jadoon, Umar Farooq,et al."Multi-stage India-Asia collision: Paleomagnetic constraints from Hazara-Kashmir syntaxis in the western Himalaya".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 134.5-6(2022).