香炉碗子金矿床成矿物质来源及矿床成因  

SOURCES OF METALLOGENIC MATERIARS AND ORE DEPOSIT GENESIS OF XIANGLUWANZI GOLD DEPOSIT

作　　者：冯守忠[1] 

机构地区：[1]吉林矿产地质研究所

出　　处：《桂林工学院学报》1999年第2期101-107,共7页Journal of Guilin University of Technology

摘　　要：对香炉碗子金矿床的硫、氢、氧、铅等稳定同位素的研究表明：成矿热液来自岩浆，并有大气降水加入；岩浆热液以深源为主，有部分壳源成分的加入，属壳幔混合成因。香炉碗子次火山隐爆角砾岩形成年龄１６０～１７０Ｍａ，主要成矿年龄１２４～１５７Ｍａ，在次火山隐爆角砾岩形成之后，深部含金热液沿剪切带上升并与地下热水形成含矿热液，富含金的热液在有利构造裂隙发育地带发生交代、沉淀。Research on the stable isotopes of S,H,O and Pb in Xiangluwanzi gold deposit shows that hydrothermal ore-forming solution comes from the magma with adding meteoric water. Magmatic hydrothermal solution largely is plutonic water with adding a part of crust-source components. It belongs to the crust-mantle mixed source. The age of formation of Xiangluwanzi subvolcanic crypto-explosive breccia is 160～170 Ma. The major ore-forming age is 124～157 Ma. After the formation of subvolcanic crypto-explosive breccia, deep-seated subvolcanic crypto-explosive breccia, deep-seated gold-bearing solution rised along the shear zone, with underground thermal water, forming ore-bearing hydrothermal solution. Gold-rich hydrothermal solution resulted to metasomatism, precipitation and formation of gold deposits.

关 键 词：金矿床 物质来源 矿床成因 

分 类 号：P618.510.1[天文地球—矿床学] P618.510.4[天文地球—地质学]