摘要
应用地质异常致矿、控矿理论和GIS空间结构分析方法,探讨胶东金矿集区的地质异常控制,主要进行了线、面及组合地质异常结构及其与金成矿的时空耦合关系。分析研究结果表明,该矿集区的形成与分布明显受控于各类致矿地质异常,并显示一定的内在成因联系和时空配置关系。其中大地构造格架、区域构造样式对本区金矿化的区域性展布及产状起主导控制作用;地层-岩相组合异常、岩浆活动异常为成矿提供了物质来源和热动力条件;最后总结了GIS技术分析矿集区地质异常的方法,建立了该矿集区的空间数据库模型。
Geo-anomaly controlling configurations for Au mineralization in Jiaodong gold deposit concentration of Shandong province is discussed on the bases of geo-anomaly-leading-to ore, ore-controlling theory, and GIS analysis method. Main works are focused on line-surface structure, line-surface combination geo-anomaly, and their time-space relations with gold mineralization. The results show that formation and distribution of Au ore in the area are clearly controlled by various geo-anomalies which always lead to ore and has inherent genetic and spatial-temporal relationship. Geotectonic frame and regional structure style dominate the regional distribution and occurrence of the mineralization. Strata-rock faces association anomaly, magmatic and heat source anomalies are closely related to ore-forming material source and dynamic condition. Finally, the method of analyzing geo-anomaly in the deposit concentration region by GIS technology has been summarized and the interspace data-base model about Jiaodong gold deposit concentration region is established.
出处
《地质与勘探》
CAS
CSCD
北大核心
2002年第6期55-58,共4页
Geology and Exploration
基金
国家重点基础研究项目(编号:G1999043207-3)资助。
关键词
地理信息系统
地质异常
空间分析
金矿床
GIS
控矿构造
空间数据库模型
geographic information system (GIS), geo-anomaly, interspace analysis,Jiaodong gold deposit concentration region
