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Major scientific problems on low-temperature metallogenesis in South China TEXT SIZE: A A A
Low-temperature metallogenesis in a huge area is very special in the world. The giant South China low-temperature metallogenic domain (SCLTMD) covers an area of around 500,000km(2) in the southwestern Yangtze Block in South China, and is composed of the Chuan-Dian-Qian Pb-Zn, Youjiang Au-As-Sb-Hg and Xiangzhong Sb-Au metallogenic provinces. The SCLTMD hosts numerous Carlin-type gold deposits, MVT Pb-Zn deposits and vein-type Sb, Hg and As deposits, which were basically hosted by sedimentary rocks, formed under low temperature conditions (ca. 100 similar to 250 degrees C) and obviously controlled by fault and fracture systems. Many developments have been obtained from previous studies. However, some crucial scientific problems concerning the accurate mineralization ages, metallogenic geodynamics and processes are still much debatable. Recent studies have shown that these deposits might form dominantly during 200 similar to 230 Ma and 130 similar to 160Ma, corresponding to Indosinian (Triassic) and Yanshanian (Jurassic to Cretaceous) orogenies in South China, and the formation of the deposits were triggered by Indosinian and Yanshanian buried magmatism except the Pb-Zn deposits in the Chuan-Dian-Qian provinces. This special issue reports the latest progresses about this aspect in 20 papers that deal dominantly with the geological and geochemical features, ages of mineralization, origins and tectonic settings of the low-temperature ore deposits formed in the SCLTMD.

Publication name

 ACTA PETROLOGICA SINICA, 32 (11):3239-3251; 2016

Author(s)

 Hu RuiZhong; Fu ShanLing; Xiao JiaFei

Corresponding author 

 HU Ruizhong 
 huruizhong@vip.gyig.ac.cn
 Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550081, Peoples R China.

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