长埔——西岭锡矿资源定量评价模型

本文以长埔——西岭锡矿带的76个矿床为基础从中选取17个已知成型矿床,分别用矢量长度法和最优分割法进行地质变量的优化选择与储量等级规模的划分;采用特征分析与逻辑信息法建立锡矿资源半定量和定量评价广义模型;并对该区59个矿化点进行含矿性及可能矿床规模的定量预测评价,筛选出6个找矿靶区。

TIN RESOURCES QUANTITATIVE ASSESSMENT MODELS ON CHANGPU-XILING REGION EAST GUANGDONG

Based on the practical data of 76 deposits and 46 geological variables at Changpu-Xil-ing region, east Guangdong province, authors chose 17 known deposits, and then used vector length method and optimum grouping method to optimize the variable combination and to group the Tin reserves scale. Two tin resources assessment models have been established after studing the model deposits by using characteristic analysis and logical information method (LIM). Besides, authors pointed out that Cs-Q mineralization, NE structure, and the length of ore-bearing vein ate. 22 geological factors are the important variables for tin reserves scale in the area. Finally, 59 deposits (points) were assessed by using the models established before.