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  4. 中国科学院新生代地质与环境重点实验室
Geochemistry and petrogenesis of the post-collisional high-K calc-alkaline magmatic rocks in Tengchong, SE Tibet

文献类型：期刊论文

作者Cheng, Zhihui1,8; Guo, Zhengfu2,3,4; Dingwell, Donald B.6; Li, Xiaohui5; Zhang, Maoliang7; Liu, Jiaqi2; Zhao, Wenbin2,3,4; Lei, Ming2,3,4
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2020-05-15
卷号193页码:26
关键词High-K calc-alkaline magma Petrogenesis Mineral zonation P-T estimation Magma plumbing system SE Tibet
ISSN号1367-9120
DOI10.1016/j.jseaes.2020.104309
英文摘要Post-collisional high-K calc-alkaline (HKCA) magmatic rocks (8 Ma to present) are extensively distributed in the Tengchong volcanic field (TVF), SE Tibet. Here, an integrated study of whole-rock major-trace elements, Sr-NdPb-O isotopes and zircon U-Pb-Hf-O isotopes, together with mineral texture and geochemistry, are presented for these volcanic suites. The HKCA magmatic rocks exhibit high concentrations of incompatible trace elements with negative Nb-Ta-Ti anomalies and high (Sr-87/Sr-86)(i) (0.705-0.710), low (Nd-143/Nd-144)(i) (0.5120-0.5126) with variable delta O-18 (5.7-9.3 parts per thousand). They may be divided into four groups from early to late stages: Groups I and III are basaltic-trachybasaltic-trachyandesitic assemblages (MgO = 3.3-9.2 wt.%); Groups II and IV mainly consist of trachyandesites and dacites (MgO = 0.6-5.1 wt.%). Incompatible trace element and Sr-Nd isotope compositions of the mafic magmas (MgO = 6.0-9.2 wt.%) from Groups I and III are postulated to reflect fluid enrichment of a mantle source by silicate and carbonatitic metasomatism as a consequence of eastward underthrusting of the Indian continental slab following the India-Asia collision. The petrogenesis of differentiated magmas (Groups II and IV) is interpreted in terms of control by crustal magma chamber AFC processes. The results of P-T estimation and EC-AFC modelling suggest at least two magma storage regions: a deep one (17-28 km) in which the trachyandesitic magmas were produced by AFC of basaltic magmas and a shallow one (9-14 km) fed by trachyandesitic magmas which gave rise to dacitic magmas via AFC. Phenocryst zoning textures also record mafic replenishment into silicic magma chambers.
WOS关键词CENOZOIC VOLCANIC-ROCKS ; ULTRAPOTASSIC IGNEOUS ROCKS ; AREA SOUTHWEST CHINA ; DEEP CARBON-CYCLE ; WESTERN YUNNAN ; MANTLE SOURCE ; CRUSTAL STRUCTURE ; FRACTIONAL CRYSTALLIZATION ; AMPHIBOLE THERMOBAROMETRY ; ISOTOPIC CONSTRAINTS
资助项目Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0702] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; China Postdoctoral Science Foundation[2018M643293] ; National Natural Science Foundation of China[41902308] ; National Natural Science Foundation of China[41772355] ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences[QYZDY-SSW-DQC030]
WOS研究方向Geology
语种英语
WOS记录号WOS:000528010700011
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/96222]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Cheng, Zhihui; Guo, Zhengfu
作者单位1.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangzhou 510275, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
3.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.SINOMA Geol Engn Explorat Acad Co Ltd, Beijing 100176, Peoples R China
6.Ludwig Maximilians Univ Munchen, Dept Earth & Environm Sci, D-80333 Munich, Germany
7.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China
8.Guangdong Prov Key Lab Geol Proc & Mineral Resour, Guangzhou 510275, Peoples R China
推荐引用方式
GB/T 7714		 Cheng, Zhihui,Guo, Zhengfu,Dingwell, Donald B.,et al. Geochemistry and petrogenesis of the post-collisional high-K calc-alkaline magmatic rocks in Tengchong, SE Tibet[J]. JOURNAL OF ASIAN EARTH SCIENCES,2020,193:26.
APA Cheng, Zhihui.,Guo, Zhengfu.,Dingwell, Donald B..,Li, Xiaohui.,Zhang, Maoliang.,...&Lei, Ming.(2020).Geochemistry and petrogenesis of the post-collisional high-K calc-alkaline magmatic rocks in Tengchong, SE Tibet.JOURNAL OF ASIAN EARTH SCIENCES,193,26.
MLA Cheng, Zhihui,et al."Geochemistry and petrogenesis of the post-collisional high-K calc-alkaline magmatic rocks in Tengchong, SE Tibet".JOURNAL OF ASIAN EARTH SCIENCES 193(2020):26.

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