Title: GEOLOGICAL AND METALLOGENETIC FEATURES OF AIWAN GOLD DEPOSIT IN GANSU PROVINCE
Abstract: Aiwan gold deposit is located in the middle part of west section of Lixian-Zuoshui miogeanticlinal fold zone within the Qinling fold system,and it is also in the intersection part of EW-direction Qinglin structural belt and deep fault of Tianshui-Wudu hidden basement,belonged to the connection area between exocontact of Zhongchuan granite body and Gaoqiao-Lixian great fault which is controlled strictly by second faults.The deposit exist the faulted structures where the discordant contact between Middle Carboniferous and Middle Devonian strata and the adjacent fault structures.The gold metallogenesis is related with original turbidite environment.The argillaceous rock,which is favorable for the formation of gold deposit,co-exist with granite porphyry vein filling along the structures.The ore is middle-fine granular disseminated sulfide ore.The gold metallogenesis may be related with wall-rock alteration and activities of hydrothermal vein including sulfide quartz vein,sulfide siliceous vein,pyritization,arsenopyritization,silication and decoloration.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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