地质通报Issue(2)：569-578,10.
皖南宁国大坞尖钨钼矿床成岩成矿年龄--以花岗闪长斑岩锆石U-Pb和辉钼矿Re-Os年龄为依据
LA-ICP-MS zircon U-Pb age and molybdenite Re-Os dating of the Dawujian W-Mo polymetallic deposit, Ningguo, Anhui Province
摘要
Abstract
The Dawujian deposit is a typical stratabound skarn W-Mo deposit located on the northeastern margin of the Qin-Hang metallogenic belt. The determination of the ages of the mineralization and the magmatic rocks of the Dawujian deposit is very impor⁃tant for the study of deposit genesis and regional metallogenic regularity. On the basis of geological and petrographic studies, the au⁃thors collected the primary types of magmatic rocks and molybdenite of the main mineralization stage and obtained the ages of the magmatic rocks (148.3±2.2Ma, 148.5±2.1Ma) by LA-ICP-MS zircon U-Pb dating and the age of mineralization(144.4±1.5Ma)by Re-Os dating of the Dawujian deposit. The authors also reveal that the Dawujian deposit was formed by magmatite intrusion of the first stage of Yanshanian period(150~136Ma). This stage seems to be an important metallogenic period in the south of Anhui Prov⁃ince, which was formed in a regional compressional environment from the transform of the Paleo-Tethys tectonic domain to the Pa⁃cific tectonic domain.关键词
LA-ICP-MS锆石U-Pb年龄/Re-Os同位素/大坞尖矿床/矽卡岩矿床/安徽宁国Key words
LA-ICP-MS zircon U-Pb dating/Re-Os isotope/Dawujian deposit/skarn deposit/Ningguo, Anhui Province分类
天文与地球科学引用本文复制引用
李斌,张赞赞,吴明安,周涛发,赵文广,蔡晓兵,狄勤松..皖南宁国大坞尖钨钼矿床成岩成矿年龄--以花岗闪长斑岩锆石U-Pb和辉钼矿Re-Os年龄为依据[J].地质通报,2015,(2):569-578,10.基金项目
安徽省地质矿产勘查局项目 （）
