摘要
Abstract
Micro-fine disseminated gold deposit is one of the most important hydrothermal deposit types in Cb ina. Most of th em are spatially distributed iu regions around the Yangtze platform, and their occurences are controlled by strata, structure and certain thermodynamic conditions in addition to tectonic backgrounds. The mineralization features of this type of gold deposits are as follows: (①) gold mineralization is distributed extensively in space, but the deposits are usually smaller in scale relatively; (②)regionally, gold mineralization often occurred in accompanion with low temperature hydrothermal deposits of Sb, As, Hg, U etc.; (③)the formation of the gold deposits experienced multiphases as well as polystages of mineralizing processes, and their origins are usually different and complex;and (④)the main metallogenic period is from late Indo-Chinese epoch to Yanshanian epoch.关键词
微细浸染型金矿床/形成条件/成矿作用特征/中国Key words
micro-fine disseminated gold deposit/geologic conditions of ore formation/mineralization feature/China分类
天文与地球科学
