气候变化领域集成服务门户(CCPortal): Formation and Paleogeographic Evolution of the Palawan Continental Terrane Along the Southeast Asian Margin Revealed by Detrital Fingerprints

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DOI	10.1130/B35707.1
	Formation and Paleogeographic Evolution of the Palawan Continental Terrane Along the Southeast Asian Margin Revealed by Detrital Fingerprints
	Cao L.; Shao L.; Qiao P.; Cui Y.; Zhang G.; Zhang X.
发表日期	2021
ISSN	167606
起始页码	1167
结束页码	1193
卷号	133
英文摘要	The prolonged convergence along the Southeast Asian margin from the Mesozoic to Cenozoic shaped the region into a complex tectonic collage of microblocks of diverse origin and evolutionary history. Among these microblocks, the formation and paleogeographic evolution of the Palawan continental terrane remain issues of uncertainty and controversy, especially regarding the petrogenesis of the oldest rocks and the conjugate relationship with the South China margin. This study examined these issues from the perspective of detrital fingerprints (including geochemistry, heavy mineral, and zircon U-Pb geochronology) of Mesozoic to Cenozoic strata from Palawan Island and basins of the northern South China Sea. The across-margin comparison of provenance signatures, favored by a comprehensive data compilation and a revision of the stratigraphic framework using the youngest zircon ages, provides insights into regional paleogeographic reconstructions from the Jurassic to the Miocene. The results reveal provenance shifts that correspond to the paleogeography of the Palawan continental terrane evolving from an accretionary complex in the Jurassic to a rifted margin in the early Cenozoic and finally to a microcontinent in the middle Cenozoic. Based on comparable provenance signatures, the terrane is interpreted to have been conjugated to the northeastern South China Sea margin from the Mesozoic until the Oligocene spreading of the South China Sea. The terrane likely existed as a northern passive margin of the proto–South China Sea from the latest Cretaceous to early Cenozoic before the oceanic crust of the latter was emplaced over the former during the Oligocene–Miocene. © 2020 Geological Society of America
语种	英语
来源期刊	Bulletin of the Geological Society of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/184686
作者单位	College of Marine Science and Technology, China University of Geosciences, Wuhan, 430074, China; State Key Laboratory of Marine Geology, Tongji University, Shanghai, 200092, China; Research Institute of China National Offshore Oil Corporation, Beijing, 100027, China; Shenzhen Branch of China National Offshore Oil Corporation, Shenzhen, 518000, China
推荐引用方式 GB/T 7714	Cao L.,Shao L.,Qiao P.,et al. Formation and Paleogeographic Evolution of the Palawan Continental Terrane Along the Southeast Asian Margin Revealed by Detrital Fingerprints[J],2021,133.
APA	Cao L.,Shao L.,Qiao P.,Cui Y.,Zhang G.,&Zhang X..(2021).Formation and Paleogeographic Evolution of the Palawan Continental Terrane Along the Southeast Asian Margin Revealed by Detrital Fingerprints.Bulletin of the Geological Society of America,133.
MLA	Cao L.,et al."Formation and Paleogeographic Evolution of the Palawan Continental Terrane Along the Southeast Asian Margin Revealed by Detrital Fingerprints".Bulletin of the Geological Society of America 133(2021).