Silicification and mineralization in hydrothermal deposits

作     者：MENG LiangyiDepartment of Geology, Changchun University of Science and Technology, Changchun 130061, China 

作者机构：Department of Geology Changchun University of Science and Technology Changchun China 

出 版 物：《Chinese Science Bulletin》 (Chin. Sci. Bull.)

年 卷 期：1999年第44卷第1期

页      面：90-94页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

主　　题：hydrothermal deposit silicification mineralization. 

摘      要：In hydrothermal deposits there are many types of alteration, including potassic alteration (altered minerals are potassic feldspar and biotite), sericitization, silicification, argillazation,chloritization, carbonification and propylitization, but most of them belong to post-or premineralization alteration except silicification formed during the mineralization period. Silicifation occurred in hydrothermal deposit formation from high, moderate temperature to low temperature and can be divided into early, middle and middle-late stages. The early stage is featured by formation under high temperature and accompanied by mineralization of Sn, W and Mo, while the middle stage was formed under moderate temperature and related to mineralization of *** middle-late stage is characterized by moderate-low ternperature and varied mineralization of Cu,Au,Zn,Ag, Pb and U.