Characteristics and Genesis of Fine-Clastic Rock-Type Au Deposits in the Liaodong Rift

作     者：YANG Dejiang 

作者机构：Liaoning Nonferrous Geological Exploration BureauState Bureau of Nonferrous Matals IndustryShenyang 110000 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2000年第74卷第3期

页      面：570-576页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 

基　　金：number of reports on gold exploration in this region were consulted in drafting this paper 

主　　题：Liaodong fine-clastic rock-type Au deposit vadose reworked hydrothermal deposit 

摘      要：Gold deposits occurring in the Liaodong rift are located in interlayered carbonate rocks and fine-clastic rocks, belonging to the middle and upper parts of the lower Proterozoic. Compared with the Carlin-type Au deposits abroad and gold deposits in Yunnan-Guizhou-Guangxi, Qinling and western Sichuan Province, they are similar in many respects. This paper discusses the geological features of ore-bearing formations and ore-filling structures and metallogenetic characteristics. Through the discussion on the sources of ores, heat and water, it points out that the Au deposits belong to vadose reworked hydrothermal deposits. This conforms to the principle of “mineralization in the neighbouring areas, i.e., the deposits are formed in nearby ore-bearing layers, and the latest hydrothermal event was the main factor in forming the Au deposits.