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

YI Gui-hua;NI Shi-jun;ZHANG Ting-bin;BIE Xiao-juan;Geomathematics Key Laboratory of Sichuan Province;Institute of Mountain Hazards and Environment,CAS;College of Earth Sciences,Chengdu University of Technology;Key Laboratory of Geoscience Spatial Information Technology,Ministry of Land and Resources of China;  
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%.
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