【摘要】 文章系统地总结分析了小秦岭—熊耳山地区金矿的成矿流体特征和成矿作用及矿床的S、Pb、O、C等稳定同位素特征 ,提出金矿床的成矿流体为地幔流体。流体的运移方向则是自南向北 ,由下向上 ,并非来自矿床北部的燕山期文峪花岗岩。新的测年结果表明 ,不少矿床的成矿时代为印支期 ,燕山期是迭加在印支期之上的成矿期。它们构成了中国东部中生代成矿作用的完整旋回。成矿受印支期构造作用的制约 ,是在远离商丹主缝合带的拉张环境下形成的更多还原

【Abstract】 This paper has summed up systematically characteristics of ore_forming fluids and ore_forming processes as well as features of such stable isotopes as S, Pb, O and C in gold deposits of Xiaoqinling_Xiong’ershan area, and pointed out that the ore_forming fluids are actually mantel fluids. The migration of fluids was from south to north and from the depth to the shallow part rather than from Wenyu granitic body in the north. New age data show that the ore_forming processes of most gold deposits took place in Indosinian epoch, whereas Yanshanian was another ore_forming epoch superimposed upon the Indosinian epoch. Geophysical data reveal that in this area mantle upheaval occurred. Hence the gold deposits were formed at the shallow part of the crust during the upward migration of mantle fluids due to the mantle upheaval and mantle plume. The ore_forming processes had nothing to do with Yanshanian granites.更多还原