The Metallogenic Geological Background of the Xuefeng-Caledonian Tectonic Cycle in Guizhou Province , China
详细信息
- 责任者：Dai Chuangu (Guizhou Geological Survey ; Guiyang 550005 ; China) ; Zheng Qiqian
- 刊名：Earth Science Frontiers
- 出版年：2013
- 卷期：20(6)
- 关键词：造山旋回 ; orogenic cycle ; 成矿作用 ; metallogenesis ; 贵州 ; Guizhou Province
- 页码：p.219-225
- 图表：5 illus., 2 tables, 15 refs.
- 分类号：1000
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
After the Wuling tectonic movement,a depositional pattern consisting of platform sediments,ramp turbidities,and deep basin sediments developed in Guizhou Province during the Xuefeng to the Caledonian tectonic cycles,which represent an evolution history from rifting oceanic basin turning to foreland basin.The rifting had resulted in numerous magmatic rocks.The Guangxi movement formed the Caledonian orogen,when the eastern,middle,and western portions of Guizhou were located in the orogenic inner belt,outer belt,and foreland part,respectively;from east to west,the regional metamorphic grade decreases gradually.Meanwhile,thrusts and metamorphic core complexes(MCCs)were developed.The rifting and foreland basins controlled the sedimentary and sedimentary exhalative(SEDEX)deposits,such as manganese,phosphorus,barite,nickel-molybdenum-vanadium,and lead-zinc ores,as well as hydrocarbon source rocks and shale gas etc.On the other hand,MCC structure and intraplate magmatism had controlled the mineralization of endogenic hydrothermal ores and reworked sedimentary ores including gold,copper,lead-zinc,and diamond deposits.
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