DOI: 10.1007/s00531-017-1455-z
Scopus记录号: 2-s2.0-85014607397
论文题名: Provenance evolution of the Jurassic northern Qaidam Basin (West China) and its geological implications: evidence from detrital zircon geochronology
作者: Yu L. ; Xiao A. ; Wu L. ; Tian Y. ; Rittner M. ; Lou Q. ; Pan X.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2017
卷: 106, 期: 8 起始页码: 2713
结束页码: 2726
语种: 英语
英文关键词: Detrital zircon
; Jurassic
; Provenance
; Qaidam Basin
; U-Pb dating
Scopus关键词: detrital deposit
; facies analysis
; geochronology
; Jurassic
; lithology
; outcrop
; provenance
; rifting
; tectonic setting
; uranium-lead dating
; zircon
; China
; Qaidam Basin
; Qinghai
英文摘要:
The Jurassic system is the major hydrocarbon source rock and of crucial importance for understanding the Mesozoic intra-continental tectonics in West China. This paper presents systematic detrital zircon geochronology of the Jurassic outcropping at the Dameigou locality in the northern Qaidam Basin, and reports ~1000 single-grain U-Pb zircon ages that have implications for the provenance, the corresponding basin property as well as the tectonic setting of West China during Jurassic. Zircon ages exhibit two major clusters at ~250 and ~2400 Ma whereas two minor clusters at ~450 and ~850 Ma, suggesting primary sources from the East Kunlun Shan and Oulongbuluke Block, secondary sources from the North Qaidam UHP belt and South Qilian Shan. Combined with observation of lithology and sedimentary facies, two rifting periods were inferred in the earliest Jurassic and the early stage of the Middle Jurassic, respectively, accompanied by further extension throughout the Jurassic. Our results do not support a foreland basin related to the Jurassic southward thrusting of the South Qilian Shan, but favor that the Mesozoic intra-continental tectonics in West China were characterised by pulsed responses to specific collisions rather than a persisting contractional setting during Jurassic period. © 2017, Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85014607397&doi=10.1007%2fs00531-017-1455-z&partnerID=40&md5=b2666218508923fa0e3c5ec02af9e8b7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69950
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: School of Earth Sciences, Zhejiang University, Hangzhou, Zhejiang, China; Research Centre for Structures in Oil and Gas Bearing Basins, Ministry of Education, Hangzhou, Zhejiang, China; Department of Earth Sciences, London Geochronology Centre, University College London, London, United Kingdom; School of Earth Sciences and Engineering, Sun Yat-sen University, Guangzhou, China; The Third Geological Group of Zhejiang Province, Jinhua, China
Recommended Citation:
Yu L.,Xiao A.,Wu L.,et al. Provenance evolution of the Jurassic northern Qaidam Basin (West China) and its geological implications: evidence from detrital zircon geochronology[J]. International Journal of Earth Sciences,2017-01-01,106(8)