基于MAPGIS的含量-面积法确定异常下限——以个旧西区为例  

THE DETERMINATION OF GEOCHEMICAL ANOMALY BY THE CONTENT-AREA METHOD BASED ON MAPGIS

作　　者：杨震[1] 梅红波[1] 

机构地区：[1]中国地质大学资源学院,武汉430074

出　　处：《物探化探计算技术》2013年第4期477-480,373-374,共4页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：含量-面积法是基于分形理论,一种研究含量与曲面面积之间关系的方法。这里以云南省个旧西区某地Sn元素土壤化探数据为例,利用MAPGIS平台进行化探数据处理,研究其含量与面积的关系,并确定异常下限,圈定异常范围。同时与传统方法进行对比分析,结果表明,基于分形含量-面积法圈定的异常区域更加有效、合理。The content-area method is a method based on the fractal theory to study the relationship between content and area of curved surface.This article takes the geochemical data of Sn for example,which is sampled from Gejiu western area in Yunnan province,and processed by MAPGIS platform,in order to study the relationship between content and area of Sn,determined the anomaly value and delineated the anomaly area.Meanwhile,by the comparative analysis of the traditional method,the results show that the fractal content-area method is more effective and rational in delineating the anomalous area.

关 键 词：分形 含量—面积法 MAPGIS平台 异常下限 

分 类 号：P632[天文地球—地质矿产勘探]