摘要
目前，对小秦岭金矿的成因有三种观点：岩浆热液、变质热液和大气降水热液，这三种观点均有许多难以解释的地质现象。这些矛盾的出现表明，可能有另种矿床成因的存在。笔者在此提出了由上地幔或下地壳物质向深断裂带排气液作用形成的＂深源热液＂新观点。该观点能很好地解决上述观点难以解决的地质问题。
It is thought that the Xiao Qinling gold deposit was derived from magmatic hydrothermal, or metamorphic hydrothermal, or meteoric hydrothermal. But all of them can not explain some geological phenomena inthe region, which means that there may be another genesis. It is put forward that there existed abyssal hydrothermal that formed by gas and liquid exhausting from upper mantle and lower crust into deep fracturezone in the formation of the Xiao Qinling gold deposit. This new viewpoint can well explain the geologicalfacts that can not be answered by others.
关键词
金矿床
成矿
同位素组成
深源热液
Metallogenic epoch, isotope composition, mineralizing process, abyssal hydrothermal
