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Petrogenetic-metallogenetic setting and temporal-spatial framework of the Yueshan district, Anhui Province, east-central China
Citation
Zhang, L and Zhou, T and Yuan, F and Fan, Y and Cooke, DR, Petrogenetic-metallogenetic setting and temporal-spatial framework of the Yueshan district, Anhui Province, east-central China, International Geology Review, 53, (5-6) pp. 542-561. ISSN 0020-6814 (2011) [Refereed Article]
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Copyright Statement
Copyright 2011 Taylor & Francis.
DOI: doi:10.1080/00206814.2010.482367
Abstract
The Yueshan district is located in the Anqing–Guichi ore deposit area of the Middle–Lower
Yangtze Metallogenic Belt. Two groups of intrusive rocks and three main types of ore
mineralization occur in this district: diorite plutons (e.g. Yueshan, Zongpu, Wuheng,
and Yangshan) and granite plutons (Hongzhen and Dalongshan), Cu–Au–(Fe) skarn
deposits (e.g. Anqing, Tiepuling), Cu–Mo–Au–(Pb–Zn) hydrothermal vein-type
deposits (Tongniujing), and hydrothermal uranium mineralization (Dalongshan).
Detailed geological and geochemical work suggests that the Cu–Au–(Fe) skarn deposits
and the Cu–Mo–Au–(Pb–Zn) hydrothermal vein-type deposits have a close spatial and
genetic relationship with the dioritic plutons, whereas the hydrothermal uranium mineralization
is associated with A-type granite plutons. Based on the highly precise dating
of metal deposits and related plutons in the Yueshan district, such as the molybdenite
Re–Os, Os–Os dating, 39Ar–40Ar dating of potassium-bearing minerals and quartz,
several Rb–Sr isochrons, SHRIMP zircon U–Pb dating + single-grain zircon U–Pb dating,
and the SHRIMP zircon U–Pb dating of Hongzhen granite pluton, we suggest that the
extensive magmatism and mineralization in the Yueshan district took place in two
episodes: (1) the first episode involved the mineralization of both skarn and vein-type
hydrothermal deposits, c.a. 136–139 Ma, related to diorite plutons emplaced at
138.7 ± 0.5 Ma; (2) the second episode attended the hydrothermal uranium mineralization
at 106.4 ± 2.9 Ma, related to granite intrusive activity at 126.8 ± 1.0 Ma. These two
times of Yueshan petrogenetic–metallogenetic development appear to be consistent
with a tectonic environment transition from compression to extension.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | Anhui, metallogenesis, petrogenesis, East China |
Research Division: | Earth Sciences |
Research Group: | Geology |
Research Field: | Igneous and metamorphic petrology |
Objective Division: | Mineral Resources (Excl. Energy Resources) |
Objective Group: | Mineral exploration |
Objective Field: | Copper ore exploration |
UTAS Author: | Zhang, L (Dr Lejun Zhang) |
UTAS Author: | Cooke, DR (Professor David Cooke) |
ID Code: | 74875 |
Year Published: | 2011 |
Web of Science® Times Cited: | 18 |
Deposited By: | Centre for Ore Deposit Research - CODES CoE |
Deposited On: | 2011-12-14 |
Last Modified: | 2014-10-15 |
Downloads: | 0 |
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