摘要
内蒙古达来庙地区是重要的钼多金属矿成矿区,草原覆盖面积达研究区总面积的58.44%。本文对达来庙地区已知矿床(点)地质特征、控矿要素进行总结,建立了研究区钼多金属矿综合信息找矿模型。在GeoDASGIS平台上,利用非线性理论、奇异性理论以及分形滤波技术,实现了对该区隐伏构造、隐伏岩体、物化探异常等弱缓信息的提取。在找矿模型的构建以及找矿信息提取的基础上,确定9个预测变量,开展基于模糊证据权方法的综合信息矿产预测,圈定成矿远景区25个,对覆盖区找矿具有指示意义。
The Dalimiao area of Inner Mongolia is an important molybdenum polymetallic mineralization area, covering an area of 58.44% of the total area of the study area.In this paper,the geological characteristics and ore controlling elements of the known deposits (points) in Dalaimiao area are summarized,and a comprehensive information ore-prospecting model for molybdenum polymetallic deposits in the study area is established.On the platform of GeoDAS GIS,the weak information such as hidden structure,hidden rock mass and physicochemical exploration anomaly can be extracted by using nonlinear theory,singularity theory and fractal filtering technology.Based on the construction of ore- prospecting model and the extraction of ore- prospecting information,comprehensive information mineral prediction based on fuzzy evidential weight method was carried out by the 9 prediction variables,and 25 potential ore- forming areas were delineated,which is of guiding significance for ore-prospecting in the covered areas.
作者
王佳营
张晓军
姚春亮
张祺
谢瑜
李光耀
丁宁
WANG Jia-ying;ZHANG Xiao-jun;YAO Chun-liang;ZHANG Qi;XIE Yu;LI Guang-yao;DING ning(Tianjin Center,China Geological Survey,Tianjin 300170,China;North China Center for Geoscience Innovation Precambrian Research Centre,China Geological Survey,Tianjin 300170,China;Faculty of Earth Resources,China University of Geosciences,Wuhan 430074,China;The First Monitoring and Application Center,China Earthquake Administration Tianjin 300180,China)
出处
《地质调查与研究》
2019年第3期174-184,共11页
Geological Survey and Research
基金
中国地质调查局地质调查项目“硬岩型铀钍等矿产资源远景调查与勘查示范（DD20160129）”
中国地质调查局地质调查项目“鄂尔多斯、柴达木等盆地砂岩型铀矿调查（DD20190119）”
国家自然科学基金项目“内蒙古赵井沟过铝质花岗岩浆演化与铌钽等元素富集机制（41502082）”
关键词
找矿模型
矿产预测
非线性理论
模糊证据权
达来庙
prospecting model
mineral prediction
nonlinear theory
fuzzy weights of evidence
Dalaimiao
