矿床地质2011，Vol.30Issue(4)：690-698,9.
赣南园岭寨钼矿辉钼矿Re-Os年龄及其地质意义
Re-Os dating of molybdenites from Yuanlingzhai molybdenum deposit insouthern Jiangxi Province and its geological significance
摘要
Abstract
Located in the inner and outer contact zones between granite porphyry and metamorphic rocks of Xunwuyan Formation, the Yuanlingzhai molybdenum deposit is a large-sized porphyry molybdenum deposit in southern Jiangxi Province. Re-Os isotopic dating of 5 molybdenite samples from the mineralized quartz veins of this ore deposit has yielded a precise isochron age of (161.1+3.9) Ma and a weighted average model age of (162± 1) Ma. The intercept of isochron is (0 ± 2) ng/g, and the MSWD is 0.50. The Yuanlingzhai molybdenum deposit was formed in mid-late Middle Jurassic, and its metallogenic age corresponds to the second ore-forming stage (170 ~ 150 Ma) in the Late Jurassic in South China, consistent to regional tungsten-tin mineralization ages around 160Ma. Molybdenum mineralization occurred in the range of 165 ~ 130 Ma in South China.关键词
地球化学/园岭寨钼矿/辉钼矿/Re-Os同位素/赣南Key words
geochemistry/Yuanlingzhai molybdenum deposit/molybdenite/Re-Os isotope/southern Jiangxi Province分类
天文与地球科学引用本文复制引用
周雪桂,马振东,吴俊华,屈文俊,龚敏,袁承先,廖明和,赵赣,李牟,魏俊浩..赣南园岭寨钼矿辉钼矿Re-Os年龄及其地质意义[J].矿床地质,2011,30(4):690-698,9.基金项目
本文得到中国地质调查局“全国重要矿产资源潜力预测评价”子项目(1212010733805)的资助 （1212010733805）
