Mineralization Environment of the Massive Fe-S Type and Pb-Zn-Cu Type Sulfide Deposits in Qingshuigou-Bailiugou, North Qilian, NW Chinaoft-com:office:office" />
详细信息
- 责任者：Peng Suxia (School of Resources Management ; Chang’an University ; Xi’an 710054 ; China) ; Chen Junlu
- 刊名：Acta Geologica Sinica
- 出版年：2013
- 卷期：87(7)
- 页码：p.1003-1012
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
Fe-S type and Pb-Zn-Cu type massive sulfide deposits occur in the Neoproterozoic-Cambrian continental rift bimodal marine volcanic rocks in Qingshuigou-Bailiugou of Qilian County Qinghai Province.The oredeposits of this two types are not only influenced to some extent by partial melting of the volcanic rocks in crust-mantle source region and volcanism , but controlled by tectonic positions and physical conditions of magmatic source.Volcanism in the Shitougou-Xiangzigou dome hosting Fe-S type deposits happened correspondingly in thedeep sea environment near to the center of rift expansion ,with dacite in lower crust or the K20-low calc-alkali basalt lower crust as the provenance.In comparison , volcanism in the Guomisi-Bailiugoudome hosting Pb-Zn-Cu typedeposits happened correspondingly in the continental margin arc environment away from the center of rift expansion and took mixture of the mantle source and crust source.In regard to metallogenic type , the former is similar to the Cyprus-type and the latter is Kuroko-type.