个旧锡矿成矿预测空间数据库建设及成矿信息提取

THE METALLOGENIC PREDICTION SPATIAL DATABASE CONSTRUCTION OF GEJIU TIN DEPOSIT AND THE EXTRACTION OF METALLOGENIC INFORMATION

个旧锡矿是中国最大的锡生产、出口基地之一,近百年的勘查和开采使得矿区积累有大量的地、物、化、遥信息,从而使成矿信息提取研究成为了可能。鉴于传统数据库对多源空间数据缺乏科学有效地管理,该文运用ArcSDE Geodatabase和SQL Server空间数据库技术,从概念设计、逻辑结构设计、物理设计3大方面介绍了个旧锡矿空间数据库的设计过程;从图形库的建立、属性库的建立、图形库与属性库的关联3大方面介绍了数据库的建立,进而完成个旧锡矿成矿预测空间数据库的建设,最终实现了基于GIS与SDM相结合的技术对遥感蚀变、地质构造、物探、化探等成矿信息的提取。研究成果可为生产矿山的找矿预测提供技术支撑。

Gejiu tin deposit is one of the largest tin production and export bases in China. For nearly a century his- tory of exploration and mining, numerous geology, geophysics, geochemistry and remote data have been accu- mulated. So this is good for the study of the metallogenic information extraction. Taking Arc SDE Geodatabase and SQL Server space database as key technologies, the paper has introduced the Gejiu tin deposit database design processes from concept design, logic structure design to physical design and built the tin spatial database for met- allogenic prediction information extraction. Based on the tin spatial database, remote sensing alteration, geolog- ical structure, geophysical and geochemical metallogenic information has been extracted by combining GIS spatial analysis with SDM technology. These research results can provide technical support for the prospecting prediction to mine production.