Silicification and mineralization in hydrothermal deposits |
| |
Authors: | Liangyi Meng |
| |
Institution: | MENG Liangyi
Department of Geology, Changchun University of Science and Technology, Changchun 130061, China |
| |
Abstract: | In hydrothermal deposits there are many types of alteration, including potassic alteration (altered minerals are potassic feldspar and biotite), sericitization, silicification, argillazation, chloritiza-tion, 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 Cu. The middle-late stage is characterized by moderate-low temperature and varied mineralization of Cu, Au, Zn, Ag, Pb and U. |
| |
Keywords: | hydrothermal deposit silicification mineralization |
本文献已被 SpringerLink 等数据库收录! |
| 点击此处可从《中国科学通报(英文版)》浏览原始摘要信息 |
| 点击此处可从《中国科学通报(英文版)》下载免费的PDF全文 |
|