气候变化领域集成服务门户(CCPortal): Provenance of the Hangu Formation, Lesser Himalaya, Pakistan: Insight from the detrital zircon U-Pb dating and spinel geochemistry

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DOI	10.1016/j.palwor.2019.12.003
	Provenance of the Hangu Formation, Lesser Himalaya, Pakistan: Insight from the detrital zircon U-Pb dating and spinel geochemistry
	Qasim, Muhammad; Ding, Lin; Khan, Muhammad Asif; Baral, Upendra; Jadoon, Ishtiaq A. K.; Umar, Muhammad; Imran, Muhammad
通讯作者	Qasim, M (通讯作者)
发表日期	2020
ISSN	1871-174X
EISSN	1875-5887
起始页码	729
结束页码	743
卷号	29 期号:4
英文摘要	Clastic rich Hangu Formation of the Early Paleocene exposed at the apex of Hazara-Kashmir syntaxis, is significant in providing evidence of the regional Mesozoic-Cenozoic unconformity and nature of detritus supplied. The current study focuses on U-Pb age dating of the detrital zircons along with spinel geochemistry to interpret tectonic implications on provenance. The Hangu Formation is composed of coarse grained sandstone, arenaceous limestone, carbonaceous shale and laterite around the Paras region and rests unconformably over Mesozoic Samana Suk Formation. The probability density plots of the detrital zircons of the Hangu Formation exhibit strong similarity to the Tethyan Himalayan detrital record. The younger Mesozoic detrital zircons exhibit resemblance to Tethyan Himalayan as well as ophiolitic detrital suites, but are very few compared to their coeval Stumpata, Jidula and Denggeng/Sangdanlin formations. The quantitative comparison reflects strong resemblance to the Tethyan Himalaya, whereas, the ophiolitic component relationship is quite poor. Comparison of spinel geochemical data with Northwestern ophiolites (Chilas Ophiolites) and Tethyan Himalaya exhibits mixed source regime of the Hangu sediments. However, the combined U-Pb dating, sandstone petrography and spinel geochemical data suggest that the detritus of the Hangu Formation is mainly derived from the Tethyan Himalayan source (Indian source). The absence of ophiolitic signature in petrography and U-Pb geochronology may suggest that the northern ophiolites were not exposed to provide detritus to the Early Paleocene Hangu Formation. This may also be interpreted that the ophiolites were emplaced during the Late Cretaceous on the northern Indian margin but uplifted and eroded later with the final India-Eurasia collision, which is clearly recorded in various studies all along the Indian margin. This fact also intimates the ophiolite emplacement as a possible cause of the regional Mesozoic-Cenozoic unconformity. (C) 2019 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.
关键词	INDIA-ASIA COLLISION SOUTHERN TIBET IMPLICATIONS INDUS SUTURE ZONE CHROMIAN SPINEL STRATIGRAPHIC CORRELATION ISOTOPIC CONSTRAINTS TECTONIC EVOLUTION TETHYAN HIMALAYA MELT INCLUSIONS BASIN EVOLUTION
英文关键词	Early Paleocene; U-Pb dating; Spinel geochemistry; Mesozoic-Cenozoic boundary; Ophiolite emplacement; Hazara-Kashmir syntaxis
语种	英语
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000603076800001
来源期刊	PALAEOWORLD
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/259898
推荐引用方式 GB/T 7714	Qasim, Muhammad,Ding, Lin,Khan, Muhammad Asif,et al. Provenance of the Hangu Formation, Lesser Himalaya, Pakistan: Insight from the detrital zircon U-Pb dating and spinel geochemistry[J]. 中国科学院青藏高原研究所,2020,29(4).
APA	Qasim, Muhammad.,Ding, Lin.,Khan, Muhammad Asif.,Baral, Upendra.,Jadoon, Ishtiaq A. K..,...&Imran, Muhammad.(2020).Provenance of the Hangu Formation, Lesser Himalaya, Pakistan: Insight from the detrital zircon U-Pb dating and spinel geochemistry.PALAEOWORLD,29(4).
MLA	Qasim, Muhammad,et al."Provenance of the Hangu Formation, Lesser Himalaya, Pakistan: Insight from the detrital zircon U-Pb dating and spinel geochemistry".PALAEOWORLD 29.4(2020).