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近几年,作者及其他一些地质工作者先后于贵州6504、6151、6915、6916及6760l等层控铀矿床、矿点内采集了同位素分析样品数十个,获得了一批U-Th-Pb法同位素地质年龄数据。本文简述了各矿床、矿点的基本地质概况,并对所有同位素地质年龄数据进行了综台整理。用于同位素地质年龄测定的样品主要为沥青铀矿或含沥青铀矿的寓铀矿石。经钍含量检查测定,多数样品内含钍量极低。为了避免扣除普通铅含量对单样年龄计算带来的影响,多数矿床、矿点的铀矿化年龄值用U-Pb等时线法求得。
In recent years, the authors and other geologists successively deposited tens of thousands of isotopic analysis samples in 6504,6151,6915,6916 and 6760l strata-hosted uranium deposits in Guizhou. A series of U-Th-Pb French isotope geologic age data. In this paper, the basic geology of each deposit and ore deposit is briefly described, and all isotopic geological age data are summarized. The samples used for the determination of isotopic geology age are mainly uranium ores containing bituminous uranium ore or bituminous uranium ore. Thorium content inspection test, most samples contain very low levels of thorium. In order to avoid the impact of ordinary lead content on single-age calculation, the uranium mineralization age values of most deposits and ore deposits were determined by the U-Pb isochron method.