冀西北水晶屯金矿成矿控矿构造研究  

Study on the Ore-forming and Ore-controlling Structures of Shuijingtun Gold Deposit in Northwestern Hebei Province

作　　者：赵莎[1] 吴姗姗[1] 牛树银[1] 王宝德[1] 

机构地区：[1]石家庄经济学院资源学院,河北石家庄050031

出　　处：《黄金科学技术》2009年第2期12-16,共5页Gold Science and Technology

基　　金：国家自然科学基金(40872137);河北省自然科学基金(D2007000751;D2008000534)项目联合资助

摘　　要：水晶屯金矿床位于张宣幔枝构造轴部,水泉沟—大南山碱性角闪二长岩杂岩体的西缘。金矿化分布于尚义—赤城韧脆性剪切带中段。含金矿物主要为自然金和银金矿,赋存于石英、黄铁矿、方铅矿裂隙和胶结物颗粒间,矿石构造为细脉状、浸染状和团块状,围岩蚀变为硅化、黄铁矿化、绢云母化等。通过对本矿区的元素相关系数、硫、铅、氢、氧同位素特征等的研究分析,认为水晶屯金矿成矿物质主要是来源于深部的核幔物质,受构造控制明显。Shuijingtun gold deposit is located in the central axis of the Zhanjiakou-Xuanhua mantle branch and in the west of alkaline hornblende monzonite in the area of Shuiquangou-Dananshan in Zhangjiakou. Gold mineralization appears in the middle of ductile shear zone in Shangyi-Chicheng. Gold-bearing minerals are mainly the natural gold and electrum, which are attached to clay minerals or within crevices of quartz, pyrite and galena as well as in between grains of cements, disseminating as veinlet or in disseminated and granular shape. Wall rock alteration are the silicifled, pyritized and sericitized. This paper holds that the metallogenie material of Shuijingtun gold deposit are mainly from core-mantle in depth, based on the research of the element＇ s correlation coefficient as well as the characteristics of some isotopes, such as sulfur, lead, hydrogen and oxygen, etc.

关 键 词：幔枝构造 物质来源 成矿作用 控矿构造 水晶屯金矿 张宣地区 

分 类 号：P618.51[天文地球—矿床学]