【摘要】 安徽铜陵矿集区是我国长江中下游重要的Cu-Au-Fe-Mo成矿带,以盛产铜、金等矿产而闻名于世,享有中国古铜都之称.前人对铜陵矿集区不同类型矿田(床)的成岩时代、成矿时代进行了大量研究,同时采用了不同的测年方法:成岩测年方法有SHRIMP锆石U-Pb测年、云母类Ar-Ar法测年等,成矿测年方法有辉钼矿Re-Os测年、黄铁矿Rb-Sr测年等.根据研究分析得出铜陵地区大规模的中酸性—中基性岩浆活动时代集中在143~136Ma;成矿重要时期集中在144.2~134.8 Ma;由此可知区内成矿作用与燕山期的岩浆活动密切相关.更多还原

【Abstract】 Tongling mineral district is an important Cu-Au-Fe-Mo mineralization area in the middle and lower reaches of the Yangtze river. Meanwhile it is famous for its rich in copper,gold and other minerals in the world,which is entitled the Chinese bronze. Predecessors have done a lot of research on the diagenetic age and metallogenic epoch of different types of ore fields( bed). At the same time,they adopted different dating methods: the diagenesis dating methods include SHRIMP zircon U-Pb dating,mica Ar-Ar dating and so on. The metallogenic dating methods include molybdenite Re-Os dating,pyrite Rb-Sr dating and so on. Based on the research we analyze and conclude that the epoch of the acid-basic magmatic activity which is in a large scale in Tongling area concentrated in the 143 ~ 136 ma,while the important period of mineralization concentrated in 144. 2 ~ 134. 8 ma,thus the region mineralization is closely related to Yanshanian magmatic activity.更多还原