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U-Pb geochronology, isotope systematics, and geochemical characteristics of the Triassic Dasuji porphyry Mo deposit, Inner Mongolia, North China: Implications for tectonic evolution and constraints on the origin of ore-related granitoids
Wu, Huaying1,2,3; Zhang, Lianchang3; Gao, Jun3; Zhang, Min1; Zhu, Mingtian3; Xiang, Peng2
2018-10-01
发表期刊JOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
卷号165页码:132-144
摘要The Dasuji porphyry Mo deposit is located in the Wulanchabu area of Inner Mongolia, within the northern Nortl China Craton (NCC). Three phases of Mesozoic felsic intrusions have been recognized in the mining area, in eluding two pre-mineralization intrusions (i.e., a quartz porphyry and a granite porphyry) with molybdenite bearing stockworks and veins, and an ore-related granite porphyry with disseminated and stockwork Mo mineralization. Zircon U-Pb-Hf analyses, intergrated with the previously reported molybdenite Re-Os isochror ages, suggest that the Mo mineralization of the Dasuji deposit occurred in the Late Triassic (222-224 Ma) am that the ore-related granitoids were derived from partial melting of old lower crust, with a subordinate contribution from mantle materials. Major and trace element analyses show that the pre-ore granite porphyr! (227 Ma) and the ore-related granite porphyry (224 Ma) are both characterized by high silica contents ant relatively high levels of oxidation, with a high differentiation index (DI = 85.0-98.8). The granitoids belong tc the high-K calc-alkaline series and are highly peraluminous, with depletion in Ba, Sr, P, Eu, and Ti, showing similar geochemical characteristics to those of post-collision-related granitoids in North China. Based on geological, geochronological, isotope systematic, and geochemical studies, integrated with regional geological in formation, we suggest that the Dasuji Mo deposit was formed in a post-collisional setting associated with the transition from regional compression to extension between the NCC and the Central Asian Orogenic Belt (CAOB during the Late Triassic.
关键词Zircon U-Pb ages Porphyry Mo deposit Dasuji Post-collisional setting Northern North China Craton
DOI10.1016/j.jseaes.2018.04.014
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences
关键词[WOS]MESOZOIC MOLYBDENUM DEPOSITS ; NORTHEASTERN CHINA ; NE CHINA ; LU-HF ; OROGENIC BELT ; XILAMULUN DISTRICT ; CONTINENTAL-CRUST ; METALLOGENIC BELT ; LINXI GRANITOIDS ; TRACE-ELEMENTS
语种英语
资助项目National Natural Science Foundation of China[41390445] ; National Natural Science Foundation of China[41202063] ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000449447300008
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89464
专题矿产资源研究院重点实验室
通讯作者Wu, Huaying
作者单位1.China Met Geol Bur, Inst Mineral Resources Res, Beijing 100025, Peoples R China
2.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, POB 9825, Beijing 100029, Peoples R China
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Wu, Huaying,Zhang, Lianchang,Gao, Jun,et al. U-Pb geochronology, isotope systematics, and geochemical characteristics of the Triassic Dasuji porphyry Mo deposit, Inner Mongolia, North China: Implications for tectonic evolution and constraints on the origin of ore-related granitoids[J]. JOURNAL OF ASIAN EARTH SCIENCES,2018,165:132-144.
APA Wu, Huaying,Zhang, Lianchang,Gao, Jun,Zhang, Min,Zhu, Mingtian,&Xiang, Peng.(2018).U-Pb geochronology, isotope systematics, and geochemical characteristics of the Triassic Dasuji porphyry Mo deposit, Inner Mongolia, North China: Implications for tectonic evolution and constraints on the origin of ore-related granitoids.JOURNAL OF ASIAN EARTH SCIENCES,165,132-144.
MLA Wu, Huaying,et al."U-Pb geochronology, isotope systematics, and geochemical characteristics of the Triassic Dasuji porphyry Mo deposit, Inner Mongolia, North China: Implications for tectonic evolution and constraints on the origin of ore-related granitoids".JOURNAL OF ASIAN EARTH SCIENCES 165(2018):132-144.
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