用含量面积法确定深切割地区地球化学异常

Geochemistry Abnormity in Dissecting Areas Defined by Content-Area Method

地球化学异常下限的确定是勘察地球化学的一个基本问题.分形算法中的含量面积法是结合含量—面积模式和投影覆盖法的优势改进后产生的.用此方法对西藏恒星错工作区1∶50000水系沉积物数据进行了处理,通过求分维数来圈定元素异常区,取得了较好效果.

Identifying the abnormal lower limit of geochemistry is a basic problem in geological prospecting. In this article, contend-area method of fractal theory is dealt with. The method is formed by integrating the superiority of content-area schema with projection covering. And it is applied to deal with the data of 1∶50000 hydrographic deposits. The abnormal area of elements is defined by finding out fractal dimension. The anthors' practice has proved the method is effcient.