ITPCAS OpenIR  > 图书馆
Mesozoic-Cenozoic tectonic evolution and metallogeny in Myanmar: Evidence from zircon/cassiterite U-Pb and molybdenite Re-Os geochronology
Li, JX (Li, Jin-Xiang)1,2; Zhang, LY (Zhang, Li-Yun)1,2; Fan, WM (Fan, Wei-Ming)1,2,3; 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
Source PublicationORE GEOLOGY REVIEWS
2018-11-01
Volume102Issue:0Pages:829-845
DOI10.1016/j.oregeorev.2018.10.009
Abstract

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.

Subject Area地质学
WOS IDWOS:000453493100042
Language英语
Indexed BySCIE
KeywordHf Isotopic Constraints Late Cretaceous Magmatism Zircon Reference Material Porphyry Copper Belt A-type Granites Southern Tibet Western Myanmar Tengchong Block Calc-alkaline Tin Belt
WOS Research AreaGeology ; Mineralogy ; Mining & Mineral Processing
WOS SubjectGeology ; Mineralogy ; Mining & Mineral Processing
Cooperation Status国际
ISSN0169-1368
Department大陆碰撞与高原隆升重点实验室
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8508
Collection图书馆
Corresponding AuthorLi, JX (Li, Jin-Xiang)
Affiliation1.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.
Recommended Citation
GB/T 7714
Li, JX ,Zhang, LY ,Fan, WM ,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 Li, JX .,Zhang, LY .,Fan, WM .,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 Li, JX ,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.
Files in This Item:
File Name/Size DocType Version Access License
2018042.pdf(3506KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, JX (Li, Jin-Xiang)]'s Articles
[Zhang, LY (Zhang, Li-Yun)]'s Articles
[Fan, WM (Fan, Wei-Ming)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, JX (Li, Jin-Xiang)]'s Articles
[Zhang, LY (Zhang, Li-Yun)]'s Articles
[Fan, WM (Fan, Wei-Ming)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, JX (Li, Jin-Xiang)]'s Articles
[Zhang, LY (Zhang, Li-Yun)]'s Articles
[Fan, WM (Fan, Wei-Ming)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2018042.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.