矿产资源评价系统的地质矿产数据模型

Data Model of a Multisource Geological Information System for Estimating Mineral Resource

为应用 GIS技术建立成矿区带矿产资源评价的多源地学信息系统 ,对地质矿产信息按 GIS技术上的要求 ,建立了科学、规范、实用的数据分层标准及数据纪录格式 .将地质矿产信息分成区域构造地质、固体矿床 [点 ]地质、钻孔地质等 3个大类 ,及 1 4个主题图层 ,对于主题图层中的不确定性要素通过建立基础表的方式设立了 1 7个亚图层 .制定了分层和命名规则 .

A multisource geoscientific information system is developed for estimating the mineral resource in minerogenetic provinces by means of GIS. A scientific, normalized and practical criterion of data layer and a data format are presented according to GIS coding rules. Geological information is classified into 3 categories (areal structure geology, ore deposit geology and drilling hole geology) and 14 theme layers. To the complex and uncertain theme layers, 17 subthemes are set up by means of creating basic tables. Some coding rules are presented for classifying the data, layering and naming. On the basis of this, the data format is systematically given.