系统核理论在化探异常评价中的稳定性分析及方法改进  

Stability analysis and method improvement of system core theory used in geochemical anomaly evaluation

作　　者：易桂花[1,2] 倪师军[3] 张廷斌[1,3,4] 别小娟[4] 

机构地区：[1]数学地质四川省重点实验室,成都610059 [2]中国科学院水利部成都山地灾害与环境研究所,成都610041 [3]成都理工大学地球科学学院,成都610059 [4]地学空间信息技术国土资源部重点实验室,成都610059

出　　处：《成都理工大学学报（自然科学版）》2015年第1期115-121,共7页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家自然科学基金资助项目(41202233);成都理工大学青年基金资助项目(2011QJ15)

摘　　要：探讨系统核理论在化探异常评价中的方法改进。通过构建异常系统网络图的连通性、连通系数和稳定系数等3个参数,改进了系统核理论的化探异常评价方法。利用该方法对青海省五龙沟金矿区化探异常结果进行了分析,在全区29个组合异常(带)中筛选出25个具有金矿找矿潜力的组合异常(带),其中17个组合异常(带)内有已知金矿点产出,与已知矿产地的吻合率达68%。This paper discusses the improvement of the system core theory used in the evaluation of geochemical anomalies.Three parameters of the system network graph are provided,including connectivity,connectivity coefficient and stability coefficient,to judge the overall stability of the system network graph and improve the stability evaluation method for the theory of system core.The method is used to analyzes the geochemical anomaly results of the Wulonggou gold deposit zone in Qinghai Province.In 29 combination anomalies（bands）of the region,25 combination anomalies（bands）with gold prospecting potential have been screened.Among them,in 17 combination anomalies（bands）,there are known gold deposits,and the coincident rate reaches 68%.

关 键 词：系统核理论 系统网络图 化探异常评价 五龙沟 

分 类 号：P595[天文地球—地球化学]