山西省平陆县关西沟一带铜铅锌多金属矿利用θ函数处理数据找矿研究  

Application of θ function to data processing for ore prospecting in Guanxigou copper, lead, zinc polymetallic ore district, Pinglu County, Shanxi Province

作　　者：陈彩萍[1] 

机构地区：[1]山西省地球物理化学勘查院,山西运城044004

出　　处：《矿床地质》2005年第4期437-444,共8页Mineral Deposits

基　　金：中央财政项目(项目编号:晋财建2003_248)的资助

摘　　要：文章以关西沟矿区为试验区(矿区西部为已知矿带),对全矿区进行了1∶10000水系沉积物测量,通过对元素迁移过程的主要因素分析和产在同一地形类的多基元景观的共生组合分析,编制出组合元素组,计算θ函数值,利用θ函数值圈定异常,作为判断矿致异常和非矿异常的依据。布设了5条岩石剖面,以进行异常检查,除西部异常带与已知矿化带对应外,在中部发现了铅异常带,在东部发现了铜异常带,进一步证实了应用θ函数处理数据的方法可获得用以指导找矿的重要信息。The Guanxigou ore district, whose western part is a known ore belt, was adopted as an experimental area. 1 ： 10,000 stream sediment survey was conducted in the whole ore district. Based on an analysis of major factors in the process of element migration in the ore district and a paragenesis analysis of the multi-element landscapes within the same kind of land forms, the author compiled the composite element group, calculated the θ function value and used the θ function to delineate anomalies. In this way, the anomalies related to ore deposits could be differentiated from the barren anomalies. Five rock profiles were arranged for anomaly inspection. The western anomaly belt is consistent with the known mineralized belt and, in addition, a lead anomaly belt and a copper anomaly belt were discovered in the central part and in the western part, respectively. All these achievements further prove that the application of θ function to data processing can yield important guiding information for ore prospecting.

关 键 词：地球化学 Θ函数 元素组合分析 圈定异常 关西沟 平陆 

分 类 号：R618.4[医药卫生—外科学]