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Thermal history of an Early Paleozoic epithermal deposit: Constraints from Ar-40/Ar-39 and (U-Th)/He thermochronology at Zhengguang, eastern Central Asian Orogenic Belt

文献类型：期刊论文

作者Wang, Le4,5; Qin, Kezhang3,4,5; Cao, Mingjian4,5; Danisik, Martin2; Evans, Noreen J.2; Li, Guangming4,5; Song, Guoxue3; Pang, Xuyong1,5
刊名ORE GEOLOGY REVIEWS
出版日期2020-11-01
卷号126页码:12
ISSN号0169-1368
关键词Zhengguang epithermal deposit Ar-40/Ar-39 dating (U-Th)/He thermochronology Preservation and exhumation
DOI10.1016/j.oregeorev.2020.103791
英文摘要The Zhengguang epithermal Au-Zn deposit, located in Heilongjiang Province, NE China, is an Early Paleozoic intermediate sulfidation epithermal deposit which is adjacent to the Duobaoshan and Tongshan porphyry Cu deposits in the Duobaoshan magmatic arc, eastern Central Asian Orogenic Belt (CAOB). Our new Ar-40/Ar-39 dating presents plateau ages of 276.9 +/- 1.2 Ma (MSWD = 1.5) for adularia and 265.7 +/- 1.2 Ma (MSWD = 3.5) for illite. These ages are clearly younger than the mineralization age of Zhengguang (similar to 480 Ma) and therefore represent a post-ore event which reset the adularia and illite argon systems. The resetting event could be related to post-collision of Xing'an Block and Songliao-Xilinhot Block. The weighted mean of zircon (U-Th)/He ages (ZHe) and apatite (U-Th)/He ages (AHe) from the same dacite porphyry with illite dating sample are 192 +/- 10 Ma (MSWD = 2.2) and 98.8 +/- 5.3 Ma (MSWD = 2.1), respectively. The ZHe age (similar to 190 Ma) indicates a tectonothermal resetting event, possibly related to the development of Tongshan fault whereas the AHe age (similar to 100 Ma) likely reflects 3 km-deep burial at Zhengguang. The intra-sample variations of (U-Th)/He ages for zircon grains are mainly due to radiation damage, while those for apatite are unknown. We argue that the post-ore volcanic eruption and slow uplift and exhumation rate caused by rollback of the PaleoPacific plate could facilitate burial and preservation of the epithermal (and by inference porphyry) deposits in NE China. Considering the complex collisional and amalgamation history in this area, we believe that there is exploration potential for ancient porphyry and epithermal deposits within the eastern section of the CAOB.
WOS关键词PORPHYRY COPPER-DEPOSIT ; ZIRCON U-PB ; MONGOL-OKHOTSK OCEAN ; DUOBAOSHAN ORE FIELD ; NE CHINA CONSTRAINTS ; LESSER XINGAN RANGE ; HEILONGJIANG PROVINCE ; RADIATION-DAMAGE ; HELIUM DIFFUSION ; IGNEOUS ROCKS
资助项目National Key R&D Program of China[2017YFC0601305] ; National Natural Science Foundation of China Project[41572064]
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
出版者ELSEVIER
WOS记录号WOS:000589188900003
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project
源URL[http://ir.iggcas.ac.cn/handle/132A11/98687]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Qin, Kezhang
作者单位1.Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China
2.Curtin Univ, Sch Earth & Planetary Sci, John de Laeter Ctr, Perth, WA 6945, Australia
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Le,Qin, Kezhang,Cao, Mingjian,et al. Thermal history of an Early Paleozoic epithermal deposit: Constraints from Ar-40/Ar-39 and (U-Th)/He thermochronology at Zhengguang, eastern Central Asian Orogenic Belt[J]. ORE GEOLOGY REVIEWS,2020,126:12.
APA Wang, Le.,Qin, Kezhang.,Cao, Mingjian.,Danisik, Martin.,Evans, Noreen J..,...&Pang, Xuyong.(2020).Thermal history of an Early Paleozoic epithermal deposit: Constraints from Ar-40/Ar-39 and (U-Th)/He thermochronology at Zhengguang, eastern Central Asian Orogenic Belt.ORE GEOLOGY REVIEWS,126,12.
MLA Wang, Le,et al."Thermal history of an Early Paleozoic epithermal deposit: Constraints from Ar-40/Ar-39 and (U-Th)/He thermochronology at Zhengguang, eastern Central Asian Orogenic Belt".ORE GEOLOGY REVIEWS 126(2020):12.

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来源：地质与地球物理研究所

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