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Provenance of Central Canyon in Qiongdongnan Basin as evidenced by detrital zircon U-Pb study of Upper Miocene sandstones
Chen Hui1; Xie XiNong1; Guo JingLiang2; Su Ming3; Zong KeQing2; Shang Fei1; Huang Wei4; Wang Wei4; Shang ZhiLei1
2015-08-01
发表期刊SCIENCE CHINA-EARTH SCIENCES
卷号58期号:8页码:1337-1349
摘要Deep-water canyon systems can provide important sandstone reservoirs for deep-water oil and gas exploration in the South China Sea; however, the sedimentary provenance of the Central Canyon in the Qiongdongnan Basin remains controversial. In this work, detrital zircon grains from three drilling sandstones in the Upper Miocene Huangliu Formation in the western part of the Central Canyon were analysed by LA-ICP-MS for U-Pb ages, in order to constrain their provenance. One hundred and ninety-one zircon grains yield concordant U-Pb ages ranging from 28.6 to 3285 Ma. Most of them show oscillatory or linear zoning in CL-images and high Th/U ratios (> 0.1), suggesting that they are magmatic zircons. Three major age clusters at about 30 Ma (N=6), 220-270 Ma (N=29), and 420-440 Ma (N=13), and five minor age clusters at 70-110 Ma (N=7), 150-170 Ma (N=4), 800-850 Ma (N=11), 1800-2000 Ma (N=16), and 2400-2600 Ma (N=7), can be identified in the age spectrum, which are very similar to those of the Upper Miocene sandstones and modern river sands in the Red River area, but different from those of other nearby regions (e.g., Hainan Island, the Pearl River area, and the Mekong River area) in Southeast Asia. The major age peak at about 30 Ma in our samples is consistent with the timing of tectonothermal events in the Red River Fault Zone. Therefore, we suggest that the provenance of the western part of the Central Canyon, in the Qiongdongnan Basin, was fed dominantly by the Paleo-Red River system during the Late Miocene.
文章类型Article
关键词Qiongdongnan Basin Central Canyon Detrital Zircon U-pb Dating La-icp-ms Sedimentary Provenance
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s11430-014-5038-6
研究领域[WOS]Geology
关键词[WOS]SOUTH CHINA SEA ; RIVER SHEAR ZONE ; HAINAN ISLAND ; HF ISOTOPES ; NORTHWESTERN VIETNAM ; CRUSTAL EVOLUTION ; THERMAL HISTORY ; TRACE-ELEMENTS ; LHASA TERRANE ; NORTH CHINA
收录类别SCI
语种英语
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000358549800006
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10834
专题中国科学院广州能源研究所
作者单位1.China Univ Geosci, Fac Resources, Minist Educ, Key Lab Tecton & Petr Resources, Wuhan 430074, Peoples R China
2.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
4.China Natl Offshore Oil Corp Res Inst, Beijing 100027, Peoples R China
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Chen Hui,Xie XiNong,Guo JingLiang,et al. Provenance of Central Canyon in Qiongdongnan Basin as evidenced by detrital zircon U-Pb study of Upper Miocene sandstones[J]. SCIENCE CHINA-EARTH SCIENCES,2015,58(8):1337-1349.
APA Chen Hui.,Xie XiNong.,Guo JingLiang.,Su Ming.,Zong KeQing.,...&Shang ZhiLei.(2015).Provenance of Central Canyon in Qiongdongnan Basin as evidenced by detrital zircon U-Pb study of Upper Miocene sandstones.SCIENCE CHINA-EARTH SCIENCES,58(8),1337-1349.
MLA Chen Hui,et al."Provenance of Central Canyon in Qiongdongnan Basin as evidenced by detrital zircon U-Pb study of Upper Miocene sandstones".SCIENCE CHINA-EARTH SCIENCES 58.8(2015):1337-1349.
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