大兴安岭北部砂宝斯金矿成矿条件及找矿方向探讨  

DISCUSSION ON METALLOGENIC CONDITION AND ORE-SEARCHING DIRECTION OF SHABAOSI GOLD DEPOSIT AT NORTHERN DAXING'ANLING MOUNTAINS

作　　者：宋丙剑[1] 江秉忠[1] 周殿宇[1] 怀宝峰[1] 

机构地区：[1]武警黄金第三支队,哈尔滨150086

出　　处：《地质找矿论丛》2007年第2期107-112,共6页Contributions to Geology and Mineral Resources Research

摘　　要：砂宝斯金矿床产于中侏罗统陆相碎屑岩中,共有6条矿脉,走向近SN向,矿床的形成经历了4个成矿期、6个成矿阶段,矿石类型主要为蚀变砂岩型和构造破碎蚀变岩型,SN向断裂为主要控矿构造,成矿溶液是岩浆热液和大气降水的混合流体,矿床是在成矿流体处于中低温、低盐度、低压浅成、偏碱性、高硫低氧、相对还原环境的物理化学条件下形成的,属中低温蚀变砂岩型。区域构造和水系沉积物测量是区内有效的找矿方法。Shabaosi gold deposit occurs in the terrestrial clastic rocks of Middle Jurassic Series including 6 ore veins trending roughly in N-S diection. It was formed in 4 metallogenic epochs and 6 stages. There are two types of gold ore, i.e. the altered sandstone type and the altered cataclastic rock type. The N-S frac- ture is the main ore-control structure and the ore fluid is the mixed liquid of magmatic hydrothermal fluid and meteoric water. The deposit was formed under condition of medium-low temperature, low salinity, low pressure, high sulfidation and low oxidation, sub-alkali and relatively reduced environment at shallow depth. It is a medium-low temperature sandstone type gold deposit. Regional structural and river sedi- ment surveys are effective to the ore prospect.

关 键 词：砂宝斯金矿 成矿条件 找矿方向 黑龙江省 

分 类 号：P612[天文地球—矿床学] P618.51[天文地球—地质学]