爆裂法测温在矿床地质上的应用  

APPLICATION OF DECREPITATION METHOD IN ORE DEPOSITS

作　　者：王莉娟[1] 朱和平[2] 王敏 

机构地区：[1]北京矿产地质研究院,北京100012 [2]中国科学院地质与地球物理研究所矿产资源研究重点实验室,北京100037 [3]辽宁省物测勘查院,沈阳1100121

出　　处：《地质与勘探》2007年第5期88-91,共4页Geology and Exploration

基　　金：国家重点基础研究发展规划(编号:2007CB4113042001cb409806);国家自然科学基金(编号:40273021)资助

摘　　要：爆裂法是一种快速、经济的获取包裹体有关信息的方法。文章采用爆裂法测温提供的信息,并结合其它研究,综合分析认为新疆北部哈图金矿石英脉型矿体与蚀变岩型矿体成矿流体是不同来源流体叠加成矿,石英脉型与蚀变岩型矿体可以单独成矿;阔尔真阔腊金矿、哈图金矿、康古尔及红石金矿石英爆裂曲线出现强烈的α-β转变峰,其成矿与深部侵入岩浆热液有关,深部可能存在铜金盲矿体;石英滩、野马泉、科克萨依、布尔克斯岱金矿深部成矿可能性不大。实践已经证明上述成矿预测与实际地质找矿勘探结果基本是符合的,证实了爆裂法测温的确能反映重要的成矿信息,在矿床地质及成矿预测研究中可起重要作用。虽然爆裂法测温本身存在的缺陷和诸多不确定因素在一定程度上限制了该方法的进一步发展,但我们的研究实践表明,如果充分利用它的优势,扬长避短,爆裂法具有均一法无法替代的优势。Decrepitation method is a fast and economic method to collect information of fluid inclusions： Based on decrepitation data and other results, it is suggested that ore - forming fluids of quartz vein and altered rock type ores in the Hata gold deposits, north Xinjiang, are different. Gold mineralization of quartz vein and altered rock typos occur separately. There is a strong α - β changed apex of quartz in the decrepitation curve in the Kuoerzhenkuola, Hata, Kuangguer and Hongshi gold deposits. Those ore - forming fluids are related with deep hot intrusions, and there might exist blind Cu and Au orebodies in the depths. By contrast, there is fear of blind Cu and Au orebodies in depths of Shiyingtan, Yemaquan, Kekesayi and Buerkesidai gold deposits. This is approximately in agreement with the results of ore prediction in the deposits, and decrepitation method can reflect important information for mineralization. Although limitation and incertitude factor of decrepitation method restrict its application to a certain degree, the shown results indi- cate that decrepitation method possesses dominance that homogenization temporature cannot replaced, if we make best use of the advantages and bypass the disadvantage.

关 键 词：爆裂法 金矿床 成矿流体 成矿预测 新疆 

分 类 号：P575.9[天文地球—矿物学]