论文部分内容阅读
信息熵是研究地质体结构特征的有效工具。在研究云南元江地区昆阳群地质建造信息熵分布的基础上 ,划分出该区的地质建造组合熵异常 ,并定量评价不同熵值分布区的找矿有利度。结合该区的断裂构造异常区、化探异常区 ,圈定出不同级别的找矿有利地段。在研究的全过程中 ,从网格单元的取值、组合熵等值线的绘制、不同熵值区间的找矿有利度定量评价 ,直到找矿有利地段的圈定 ,都是用 MAPGIS软件完成的。用地质建造组合熵异常圈定的找矿有利地段具有更高的综合性 ,可预测与地质建造有关的未知矿床类型。
Information entropy is an effective tool to study the structural features of geological bodies. On the basis of studying the information entropy distribution of the geological construction of the Kunyang Group in the Yuanjiang area in Yunnan Province, this paper divides the entropy anomaly of geological construction in this area and quantitatively evaluates the ore prospecting benefit of different entropy distribution areas. Combined with the fault structure anomaly area and geochemical anomaly area in this area, different favorable prospecting areas are delineated. In the whole process of the study, from the grid unit values, the combination entropy contour drawing, the quantitative evaluation of the degree of prospecting beneficiation in different entropy intervals, until the delineation of favorable prospecting are all done by MAPGIS software . The favorable prospecting areas delineated by the geologic combination of construction entropies have higher comprehensiveness and can predict the types of unknown deposits related to geological construction.