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Large-scale porphyry-type mineralization in the Central Asian metallogenic domain: A review
Gao, Jun1,2; Klemd, Reiner3; Zhu, Mingtian1; Wang, Xinshui1; Li, Jilei1; Wan, Bo1; Xiao, Wenjiao1; Zeng, Qingdong1; Shen, Ping1; Sun, Jinggui4; Qin, Kezhang1; Campos, Eduardo5
2018-10-01
发表期刊JOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
卷号165页码:7-36
摘要A series of porphyry-type Cu-(Mo)-(Au) deposits including some giant world-class deposits such as Kounrad, Aktogai, Kal'makyr, Oyu Tolgoi and Chalukou occur in the Central Asian metallogenic domain (CAMD). The outline of the CAMD almost overlaps with that of the Central Asian orogenic belt (CAOB), which is located between the East Europe, Siberia, Tarim and North China cratons. The CAMD comprises sparsely exposed tectonic slices of Precambrian high-grade metamorphic basement rocks that are sandwiched between Phanerozoic accretionary complexes and arc rocks. According to geological, metallogenic, geochronological and tectonic setting characteristics, the CAMD comprises three metallogenic provinces: (1) the Kazakhstan Cu-Au-Mo, (2) the Mongolia Cu-Au and (3) the Northeast China Mo-Cu metallogenic provinces. Early Paleozoic (similar to 490 to 440 Ma) and Late Paleozoic (similar to 330 to 295 Ma) large scale porphyry-type mineralization in the Kazakhstan metallogenic province is intimately associated with the evolution of the Central Tianshan-Yili-Northern Tianshan-Kokchetav-Chingiz Paleozoic arc system which was terminated by the late Permian closure of the western segment of the Paleo-Asian Ocean. In contrast, the similar to 370 Ma and similar to 240 Ma porphyry-type mineralization of the Mongolia metallogenic province is related to the Tuva Mongolia arc collage system that was formed during the evolution of the Paleo-Asian Ocean in the Paleozoic and the Mongol-Okhotsk Ocean in the early Mesozoic. Furthermore, the Northeast China metallogenic province was affected by three distinct geodynamic processes that were associated with the Paleo-Asian, Mongol-Okhotsk and Paleo-Pacific Oceans during the Paleozoic (> 250 Ma), the early Mesozoic (> 200 Ma) and the late Mesozoic (200-90 Ma), respectively. Except for the Early Paleozoic Cu mineralization at Duobaoshan (similar to 480 Ma) and Bainaimiao (440 Ma), the porphyry-type mineralization of this metallogenic province is predominantly characterized by widespread Mesozoic Mo mineralization. In general, porphyry-type deposits of the CAMD have geological, structural, metallogenic, alteration and fluid characteristics, which are consistent either with those related to the oceanic subductional arc settings of the Circum-Pacific metallogenic domain or with those of the continental collisional environment in the Tethyan metallogenic domain. The involvement of highly oxidized intermediate to felsic magmas is fundamental for the formation of porphyry deposits. Even though the prevalent MASH and slab melting models can be employed to interpret the genesis of some porphyry Cu deposits in the CAMD, a here newly suggested model, which is based on 'pre-enriched mafic lower crust and the subduction of a relictic mid-oceanic ridge', is thought to explain the large scale copper mineralization in the Balkhash-West Junggar metallogenic belt of the Kazakhstan metallogenic province. Nevertheless, most of the porphyritic suites associated with the Mo deposits in the Northeast China metallogenic province have relatively depleted mantle-like neodymium and hafnium isotopic compositions, suggesting that the ore-forming granitic magma may have predominantly been derived from juvenile lower crust. Upwelling of asthenosphere may have triggered the melting of the lower crust during post-collisional extension subsequent to the closure of the Paleo-Asian Ocean in the Triassic, the subduction of the Paleo-Pacific ocean in the Jurassic and the thinning of the lithosphere caused by rollback of the Paleo-Pacific plate in the Cretaceous. Ancient crustal components were only locally found to have been involved in the magma source of several medium-large Mo deposits.
关键词Porphyry-type deposits Porphyry-type mineralization Central Asian metallogenic domain Central Asian Orogenic Belt
DOI10.1016/j.jseaes.2017.10.002
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
关键词[WOS]ZIRCON U-PB ; RE-OS GEOCHRONOLOGY ; HF ISOTOPIC CONSTRAINTS ; CU-MO DEPOSIT ; NE CHINA IMPLICATIONS ; LESSER XINGAN RANGE ; KYRGYZ TIEN-SHAN ; PALEOZOIC CRUSTAL GROWTH ; KAZAKSTAN STRUCTURAL POSITION ; NORTHERN XILAMULUN DISTRICT
语种英语
资助项目National Natural Science Foundation of China[41390445] ; National Natural Science Foundation of China[41390440]
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000449447300002
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
被引频次:26[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/132A11/89457
专题矿产资源研究院重点实验室
通讯作者Gao, Jun
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Erlangen Nurnberg, GeoZentrum Nordbayern, Schlossgarten 5a, D-91054 Erlangen, Germany
4.Jilin Univ, Coll Earth Sci, Changchun 130061, Jilin, Peoples R China
5.Univ Catolica Norte, Dept Ciencias Geol, Antofagasta, Chile
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GB/T 7714
Gao, Jun,Klemd, Reiner,Zhu, Mingtian,et al. Large-scale porphyry-type mineralization in the Central Asian metallogenic domain: A review[J]. JOURNAL OF ASIAN EARTH SCIENCES,2018,165:7-36.
APA Gao, Jun.,Klemd, Reiner.,Zhu, Mingtian.,Wang, Xinshui.,Li, Jilei.,...&Campos, Eduardo.(2018).Large-scale porphyry-type mineralization in the Central Asian metallogenic domain: A review.JOURNAL OF ASIAN EARTH SCIENCES,165,7-36.
MLA Gao, Jun,et al."Large-scale porphyry-type mineralization in the Central Asian metallogenic domain: A review".JOURNAL OF ASIAN EARTH SCIENCES 165(2018):7-36.
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