【摘要】 紫木凼金矿的控矿断层是一条低角度逆断层。断层岩的变形特征为低温变形，断层岩主要为碎裂岩类，变形温度在２００℃左右。断层岩在平面上分带特征明显，可划分为碎裂岩－节理密集带，磨砾岩－剪切旋转带和断层泥－局部压溶带等三个带。随着变形程度的增加，金元素有明显的富集趋势，峰值区位于断层泥－局部压溶带内，即金元素的富集与岩石变形过程中的压溶作用有关。更多还原

【Abstract】 The ore controlled fault in Zimudang Gold Ore is a low angle thrust.The fault rock is characterized as a low temperature deformation of about 200℃±and it is mainly a type of cataclasite.The fault exists obviously in three bands: cataclasite concentrated joint band, worn braciation shearing rotation band and gouge partial pressure solution band.Au contents tends to be richer at a higher deformation level and the peak value of Au is seated in gouge partial pressure solution band.That is,the migration and enriching of Au ore is related to the pressure solution.更多还原