摘要
山西五台地区位于华北陆台中部,是山西省内重要的金矿成矿区域,地质条件复杂,近年来找矿突破较小。在矿产预测中,可以结合证据权快速筛选地质变量,求取权重,计算地质奇异性指数,提取局部地质弱异常;利用灰色理论只需少量信息进行预测的特点,圈定找矿靶区,寻找突破。应用证据权-奇异性-灰色理论方法圈定了研究区预测靶区,靶区内通过已知矿床的验证,提取了4个一级靶区,1个二级靶区,确定了该区域金矿找矿突破口,明确了证据权-奇异性-灰色理论关联分析预测法在矿产预测评价中的重要应用价值和独特的应用效果。
Located in the central part of North China Craton,Wutai area is an important area of gold mineralization in Shanxi Province;nevertheless,complex geological settings of this area lead to rare recent prospecting breakthroughs.In mineral prediction,the geological evidence weight approach can rapidly screen geological variables to calculate weights and anomaly index and extract local weak geological anomalies,whereas the gray theory approach can delineate prospecting targets by using only a small amount of information.These methods can be jointly utilized to look for a breakthrough.In delineating the prognostic target areas based on verified known deposits,four primary targets and a secondary target in Wutai area were delineated.This Weight-Anomaly-Gray Theory conjoint analysis is believed to be an important application in mineral prediction with unique application effect.
作者
范海明
王翔
茹湘兰
FAN Haiming;WANG Xiang;RU Xianglan(Geological Survey of Shanxi Province, Taiyuan 030001, Shanxi, China;Development Research Center, China Geological Survey, Beijing 100037, China;China University of Geoscience (Beijing), Beijing 100083, China)
出处
《地质通报》
CAS
CSCD
北大核心
2017年第8期1462-1466,共5页
Geological Bulletin of China
基金
中国地质调查局项目<山西省矿产资源潜力调查>(编号:121201813004)
关键词
五台
金矿
非线性
灰色理论
奇异性
成矿预测
Wutai
gold deposit
nonlinear
gray theory
singularity
metallogenic prediction
