基于MAPGIS空间分析的凤凰山矿田找矿预测  

Prospecting Prediction of Fenghuangshan Ore Field Based on MAPGIS Spatial Analysis

作　　者：马子骏 单士锋 MA Zijun;SHAN Shifeng(321 Geological Team of Bureau of Geology and Mineral Exploration of Anhui Province)

机构地区：[1]安徽省地质矿产勘查局321地质队

出　　处：《现代矿业》2023年第6期91-94,共4页Modern Mining

摘　　要：为提高找矿预测结果的准确性,确定成矿靶区,引进MAPGIS空间分析技术,设计一种找矿预测方法。通过建立成矿模式剖面,集中表现矿床赋矿空间、控矿因素、矿化组合及找矿标志特征,实现对凤凰山矿田成矿预测图编制与找矿预测变量提取、赋值;采用网格法,用400 m×400 m的网度划分评价单元,利用MAPGIS空间分析技术,统计矿区单元信息量;根据评价单元预测结果及地质条件圈定靶区,并通过对区域地球化学异常的分析,实现对凤凰山矿田的找矿预测。通过钻探法验证,所设计的找矿预测方法所得结果与实际情况相匹配。In order to improve the accuracy of prospecting prediction results and determine the metallogenic target area,MAPGIS spatial analysis technology is introduced to design a prospecting prediction method.Through the establishment of metallogenic model profile,the ore-bearing space,ore-controlling factors,mineralization combination and prospecting criteria of the deposit are concentrated to realize the compilation of metallogenic prediction map and the extraction and assignment of prospecting prediction variables in Fenghuangshan ore field.The grid method is used to divide the evaluation unit with 400 m×400 m grid,and the MAPGIS spatial analysis technology is used to count the amount of information in the mining area.According to the prediction results of the evaluation unit and the geological conditions,the target area is delineated,and the prospecting prediction of the Fenghuangshan ore field is realized by analyzing the regional geochemical anomalies.Through drilling verification,it is proved that the results obtained by the designed prospecting prediction method match the actual situation.

关 键 词：MAPGIS空间分析 靶区圈定 找矿预测 

分 类 号：P628[天文地球—地质矿产勘探]