摘要
通过对黑龙江多宝山成矿区内典型金矿床的地质及地球化学特征的研究和对区域上金矿床（点）的分布特点和成因特征的总结,分析了研究区金矿成矿规律,并明确了找矿方向.研究表明：研究区内金矿床（点）主要受控于NW向和NE向菱（环）形构造,其中以NE向断裂为主,而且由西向东金矿化具有不断加强的趋势.矿体主要赋存于中奥陶世和燕山早期火山岩中,成矿物质主要来源于燕山期岩浆岩及其围岩,成矿流体主要来源于大气降水,流体包裹体均一温度均值在133~267℃之间,属于浅成中-低温热液矿床.
Based on the studies of the geology and geochemistry of typical gold deposits,as well as the distribution and genesis of gold deposits and occurrences in the Duobaoshan area of Heilongjiang Province,the gold metallogenic rule is analyzed.The results show that the gold mineralization is controlled by NW-and NE-trending faults,of which the NE-trending faults are dominated.From west to east,the gold mineralization is becoming stronger.The ore bodies are hosted in the Middle Ordovician and Early Yanshanian volcanic rocks,with ore-forming materials from mainly Yanshanian magmatic rocks and wallrocks.The ore-forming fluids are mainly from meteoric water.The homogenization temperature of fluid inclusions ranges from 133℃ to 267℃.The genesis of the gold deposits in the area belongs to typical epi-mesothermal ore deposit.At last,some prospecting criteria are proposed for the further exploration in the area and the prospecting orientations are determined.
出处
《地质与资源》
CAS
2011年第2期89-95,共7页
Geology and Resources
基金
中国地质调查局"黑龙江省多宝山地区矿产远景调查"项目(1212010781024)资助
关键词
金矿床
成矿规律
控矿构造
多宝山
黑龙江省
gold deposit
metallogenic rule
ore-controlling structure
Duobaoshan
Heilongjiang Province
