论文部分内容阅读
川西北地区是微细浸染型金矿集中分布区之一。微细浸染型金矿床主要分布于川西北拗陷区的边部，海相细碎屑岩建造和基性火山岩、火山碎屑岩建造是微细浸染型金矿的主要赋矿岩系，矿化明显受构造控制。围岩蚀变以硅化、黄铁矿化、碳酸盐化等低温蚀变为主，其矿物、元素组合仓显示出低温成矿特征，由于区域热动力条件不同，各矿床之间在物质组成方面也略有差异。
Northwest Sichuan is one of the finely disseminated gold deposits. Finely disseminated gold deposits are mainly distributed in the margins of the depression in the northwestern Sichuan Basin. The construction of marine fine clastic rocks and the construction of basic volcanic rocks and volcaniclastic rocks are the major ore-hosting rocks of finely disseminated gold mines with obvious mineralization Controlled by structure. The alteration of wall rocks is dominated by low temperature alteration such as silicification, pyrite and carbonation. The mineral and elemental assemblages show low-temperature mineralization characteristics. Due to the different thermodynamic conditions in the area, There are also some differences.