基于蚁群算法的羟基蚀变信息的提取--以青海省同仁县阿哇地区为例  

Extraction of hydroxyl alteration information based on the ant colony algo- rithm—A case study of the Awa area,Tongren County,Qinghai,China.

作　　者：薛云[1] 戴塔根[1] 邓会娟[2] 夏浩东[3] 王东[1] 

机构地区：[1]中南大学地质与环境工程学院 [2]中国地质大学,北京100083 [3]国土资源部实物地质资料中心,北京101149

出　　处：《地质通报》2008年第5期657-661,共5页Geological Bulletin of China

基　　金：中国地质调查局国土资源调查项目《矿产资源遥感综合信息提取技术与找矿应用研究》(编号：1212010660601)资助。

摘　　要：蚁群算法是一种全新的仿生进化算法,但目前很少有人将蚁群算法引入遥感地质领域。结合蚁群算法与遥感地质领域传统的比值方法,建立了羟基蚀变信息提取模型。选取青海省同仁县阿哇地区为研究区。首先确定羟基蚀变信息提取规则,然后建立基于蚁群的羟基蚀变信息提取模型,最后根据模型提取羟基蚀变信息。通过对提取的蚀变异常信息与原有矿区的叠加分析,叠加基本吻合;从野外实地验证来看,均发现了不同程度的矿化现象。The ant colony algorithm is a new bionic evolution optimization algorithm, but now few people introduce this algorithm into the field of remote sensing geology. In the study a model for extracting hydroxyl alteration information was constructed by combining the ant colony algorithm with the traditional ratio method in the field of remote sensing geology. The Awa area, Tongren County, Qinghai, was selected as the study area. Firstly, the rule of extracting hydroxyl alteration information was defined; then, the model of extracting the hydroxyl alteration information from remote seining images was constructed based on the ant colony algorithm and ratio method; and finally, hydroxyl alteration information was extracted according to the model. The superimposition analysis shows that the extracted alteration information essentially coincides with the known mineralization-alteration areas. In the field checks, different degrees of mineralization were found.

关 键 词：蚁群算法 羟基蚀变信息 青海省同仁县阿哇地区 

分 类 号：P618.41[天文地球—矿床学] P627[天文地球—地质学]