林西地区萤石矿成矿特征及综合信息成矿预测

本文在阅读、分析和总结前人在林西地区的工作资料和研究成果基础上,以最新的萤石矿成矿理论观点为指导,归纳总结了林西地区萤石矿床的成矿特征.然后利用GIS技术进行区域萤石矿专题信息分析与提取,建立评价证据指标模型,运用证据权重法对该区的萤石矿进行了综合信息成矿预测,圈定了四个找矿远景区.最后对优选远景区进行IED-2000P便携式X荧光仪和GSM-19高精度磁力仪方法验证,结果两者所圈定的异常范围、强度和位置与预测结果都相对比较吻合.表明运用证据权重法对林西地区萤石矿进行的综合信息成矿预测的结果具有效性和可信性.

Metallogenic Characteristics and Comprehensive Information Metallogenic Prognosis of the Fluorite Deposit in Linxi Area

This paper generalize and summarize the metallogenic characteristics of the fluorite deposit in Linxi area located in Inner Mongolia.The generalization and summarization based on the analysis and summary of the work documents and research results of the study area and instructed by the latest metallogenic theory of the fluorite deposit.This paper analyzes and extracts the comprehensive metallogenic information by GIS technique and develops a evidence weight method.Then perform metallogenic prognosis and evaluation of the fluorite deposit using the weights of evidence modeling in study area.Next delineate four mining targets.The paper also use IED-2000P portable X-ray luminoscope and GSM-19 high-precision magnetometer to delineate the mining targets.Through the analysis of the results,the mining targets delineated by two methods are coincident in the anomaly included the range and the intensity and the position of mineralization.The practice proves the validity and creditability of the prognosis that using weights of evidence method to prognose the fluorite deposit in Linxi area.