中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Mesozoic-Cenozoic tectonic evolution and metallogeny in Myanmar: Evidence from zircon/cassiterite U-Pb and molybdenite Re-Os geochronology

文献类型:期刊论文

作者Fan, WM (Fan, Wei-Ming)1,2,3; Li, JX (Li, Jin-Xiang)1,2; Zhang, LY (Zhang, Li-Yun)1,2; Ding, L (Ding, Lin)1,2; Sun, YL (Sun, Ya-Li)1; Peng, TP (Peng, Tou-Ping)2,4; Li, GM (Li, Guang-Ming)2,5; Sein, K (Sein, Kyaing)6
刊名ORE GEOLOGY REVIEWS
出版日期2018-11-01
卷号102期号:0页码:829-845
关键词Hf Isotopic Constraints Late Cretaceous Magmatism Zircon Reference Material Porphyry Copper Belt A-type Granites Southern Tibet Western Myanmar Tengchong Block Calc-alkaline Tin Belt
ISSN号0169-1368
DOI10.1016/j.oregeorev.2018.10.009
英文摘要

It is well known that there are many Sn-W-Mo and Cu-Au metal resources in Myanmar. However, the absence of precise mineralization ages for these deposits significantly hinders to understand the close genetic relationship among metallogeny, ore-bearing intrusions, and tectonic evolution. In this study, two groups of consistent molybdenite Re-Os and zircon U-Pb ages indicate that the Dapingba Mo-W deposit in northern Myanmar (Tengchong terrane) formed at Early Cretaceous (similar to 119 Ma and similar to 114 Ma). The Dapingba ore-bearing granitic magmas were mainly derived from melting of ancient Tengchong crust on the basis of zircon Hf isotopic compositions (epsilon Hf(t) = 9.3 to 2.5). Moreover, the first reported cassiterite U-Pb ages of similar to 60 Ma for the Bawapin and Kalonta Sn-W deposits in southern Myanmar (western Sibumasu terrane) suggest that the two deposits formed at Paleocene. Whereas the precise molybdenite Re-Os age for the Shangalon porphyry Cu-Au deposit in the West Burma terrane indicates that this deposit formed at Eocene (similar to 39 Ma). Importantly, combined with previous studies on tectonic evolution and magmatic petrogenesis in Myanmar and southwest China, a comprehensive Mesozoic-Cenozoic tectono-magmatic and metallogenic model are proposed. Two periods of Early Cretaceous (similar to 120-114 Ma) and Late Cretaceous (similar to 75-70 Ma) crust-derived felsic melts and related Mo-Sn-W deposits from the Tengchong and western Sibumasu terranes likely formed in a continental arc during subduction of the Meso- and Neo-Tethys oceanic lithosphere, respectively. Subsequently, Paleocene-Eocene (similar to 60-50 Ma) Sn-W deposits and coeval ore-bearing granites in the western Sibumasu terrane possibly formed during roll-back of the Neo-Tethys oceanic slab. After similar to 50 Ma India-Asia collision, Eocene (similar to 41-39 Ma) porphyry Cu-Au (West Burma terrane) and Sn-W deposits (western Sibumasu terrane) likely formed during the Neo-Tethys oceanic slab tear and break-off in a collisional setting. Whereas Miocene (similar to 19-14 Ma) high sulfidation epithermal Cu deposit in the West Burma terrane possibly formed in an arc setting during oblique subduction of the Indian oceanic lithosphere.

学科主题地质学
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000453493100042
出版者ELSEVIER SCIENCE BV
源URL[http://ir.itpcas.ac.cn/handle/131C11/8508]  
专题青藏高原研究所_图书馆
通讯作者Li, JX (Li, Jin-Xiang)
作者单位1.Chinese Acad Sci, Key Lab Continental Collis & Plateau Uplift, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China;
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China;
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China;
6.Myanmar Geosci Soc, Yangon, Myanmar.
推荐引用方式
GB/T 7714
Fan, WM ,Li, JX ,Zhang, LY ,et al. Mesozoic-Cenozoic tectonic evolution and metallogeny in Myanmar: Evidence from zircon/cassiterite U-Pb and molybdenite Re-Os geochronology[J]. ORE GEOLOGY REVIEWS,2018,102(0):829-845.
APA Fan, WM .,Li, JX .,Zhang, LY .,Ding, L .,Sun, YL .,...&Sein, K .(2018).Mesozoic-Cenozoic tectonic evolution and metallogeny in Myanmar: Evidence from zircon/cassiterite U-Pb and molybdenite Re-Os geochronology.ORE GEOLOGY REVIEWS,102(0),829-845.
MLA Fan, WM ,et al."Mesozoic-Cenozoic tectonic evolution and metallogeny in Myanmar: Evidence from zircon/cassiterite U-Pb and molybdenite Re-Os geochronology".ORE GEOLOGY REVIEWS 102.0(2018):829-845.

入库方式: OAI收割

来源:青藏高原研究所

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