摘要
全面系统地讨论了小秦岭—熊耳山地区金矿成矿时代的研究历史和现状，根据地质特征，检验了各类测试方法的可信度，并列出了最新的测试数据，进而提出了印支期是小秦岭—熊耳山地区乃至整个秦岭的一个重要的金、多金属的成矿期的新认识。认为这是华北与扬子两大板块在印支期完成碰撞对接这一重大地质事件中在后缘拉张机制下，驱动早期地幔柱复活成矿的结果。
The researching history and present situation of the metallogenic epoch of gold deposits in the Xiaoqinling-Xiong’ershan regions have been discussed comprehensively and systematically in this paper. According to the geological characteristics, the authors analysed the truthfulness of various testing methods and the latest new testing data, and then advanced the new understanding that Indosinian period is an important mineralization period of the gold and polymetallic ore in Xiaoqinling-Xiong'ershan region and even in whole Qinling region. It was the result of revived mineralization of the early mantle plume drived by the extensional mechanism of behindhand margin after the collision subduction of the North China and Yangtze plates in Indosinian Period. The advance of mineralization in Indosinian Period has important theoretical significance for the study of metallogenic regularity in Qinling ore forming belt.
出处
《黄金地质》
1999年第1期11-16,共6页
Gold Geology
关键词
金矿
成矿时代
小秦岭
熊耳山
矿床成矿
gold deposit, metallogenic epoch, Xiaoqinling, Xiong'ershan
