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金成矿年龄和矿源同位素组成的准确测定,对金矿地质研究和找矿具有重要意义。本文根据3年多野外和室内工作的总结,获得了多个典型矿床的年龄和同位素测定结果:华北古陆北缘北侧槽区乌花敖包金矿测定为130—120Ma的晚期造山作用成矿;南侧台区赛乌素金矿为211±15Ma的再循环古陆改造成矿;中段台区后沟一黄土梁金矿为243±7Ma的古陆再造成矿;胶东焦家-乳山金矿为122.7±3.4Ma和128±23Ma的燕山期成矿;华夏古陆八宝山金银矿为140±5Ma的火山热液成矿。
Accurate determination of gold mineralization age and source isotopic composition is of great significance to gold deposit geology research and prospecting. Based on the summary of more than three years of field work and indoor work, the age and isotopic results of several typical deposits have been obtained. The late Orogenic Ore-Forming of the Wuhua-Aobao gold deposit in the northern margin of the North China ancient continental margin was characterized by a late orogeny of 130-120 Ma. The side-stage area of the Seosu Gold Mine is 211 ± 15Ma of reclaimed paleo-continental mineralization; the middle section of the Hougou-Huangtouliang Gold Mine is 243 ± 7Ma of ancient land reclamation; the Jiaodong Jiaojia-Rushan Gold Mine is 122.7 ± 3.4Ma and 128 ± 23Ma Yanshanian metallogenesis; the Huaxia ancient land Babaoshan gold-silver deposit is 140 ± 5Ma volcanic hydrothermal mineralization.