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Petrogenesis of Transitional Large Igneous Province: Insights From Bimodal Volcanic Suite in the Tarim Large Igneous Province

文献类型：期刊论文

作者Cheng, Zhiguo2; Zhang, Zhaochong2; Wang, Zhenchao2; Wang, Fangyue3; Mao, Qian4; Xu, Lijuan2; Ke, Shan2; Yu, Huimin1; Santosh, M.2,5
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2020-05-01
卷号125期号:5页码:22
ISSN号2169-9313
DOI10.1029/2019JB018382
英文摘要The Tarim large igneous province (TLIP) corresponds to a transitional large igneous province based on the high proportion of felsic rocks, classifying between mafic and silicic large igneous provinces. Here we investigate a bimodal suite including trachydacite, rhyolite, and basanite from the Northern Tarim Uplift using petrological, geochemical, stable, and radiogenic isotopic techniques with a view to understand the formation of the TLIP. Our study reveals a multistage origin involving multiple components, although the various rock suites are genetically linked and formed under a rift incubation setting related to mantle plume. The low delta(26) Mg values (-0.48% to -0.71%), Fe/Mn > 60, FC3MS (FeOT/CaO-3*MgO/SiO2) > 0.65, and high TiO2 contents (4.45-4.93 wt.%) of basanite from this suite suggest formation through partial melting of carbonated eclogite formed by recycled oceanic crust. The thick lithosphere beneath the Tarim Craton promoted extensive interaction between the underplated basaltic magmas and crust-derived magmas leading to the formation of multistage magma chambers. Geochemical and mineralogical studies suggest that the trachydacite experienced a mixing, assimilation, storage, and hybridization process, whereas the rhyolite was produced by fractional crystallization from the associated mantle-derived magma with significant crustal contamination. The abundance of amphibole in the trachydacite suggests a hydrous parental magma with H2O content in the range of 2.75 to 4.05 wt.%. Our results suggest that hydrous crustal components contributed significantly in the formation of voluminous felsic rocks of the TLIP.
WOS关键词ENERGY-CONSTRAINED ASSIMILATION ; PARTIAL MELTING EXPERIMENTS ; NW CHINA IMPLICATIONS ; ZIRCON U-PB ; FRACTIONAL CRYSTALLIZATION ; TRACE-ELEMENT ; MANTLE PLUMES ; OCEANIC-CRUST ; PERALKALINE RHYOLITES ; ISOTOPE GEOCHEMISTRY
资助项目National Natural Science Foundation of China[41772057] ; National Natural Science Foundation of China[41702064] ; National Natural Science Foundation of China[41873034] ; Fundamental Research Funds for the Central Universities[2652018118] ; Fundamental Research Funds for the Central Universities[PA2018GDQT0020]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000562379800013
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/97646]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Zhang, Zhaochong
作者单位1.Univ Sci & Technol China, CAS Key Lab Crust Mantle Mat & Environm, Sch Earth & Space Sci, Hefei, Peoples R China
2.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing, Peoples R China
3.Hefei Univ Technol, Ore Deposit & Explorat Ctr ODEC, Hefei, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
5.Univ Adelaide, Dept Earth Sci, Adelaide, SA, Australia
推荐引用方式
GB/T 7714		 Cheng, Zhiguo,Zhang, Zhaochong,Wang, Zhenchao,et al. Petrogenesis of Transitional Large Igneous Province: Insights From Bimodal Volcanic Suite in the Tarim Large Igneous Province[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2020,125(5):22.
APA Cheng, Zhiguo.,Zhang, Zhaochong.,Wang, Zhenchao.,Wang, Fangyue.,Mao, Qian.,...&Santosh, M..(2020).Petrogenesis of Transitional Large Igneous Province: Insights From Bimodal Volcanic Suite in the Tarim Large Igneous Province.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,125(5),22.
MLA Cheng, Zhiguo,et al."Petrogenesis of Transitional Large Igneous Province: Insights From Bimodal Volcanic Suite in the Tarim Large Igneous Province".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 125.5(2020):22.

入库方式： OAI收割

来源：地质与地球物理研究所

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