基于GIS平台的多源地学数据管理系统

为了有效保存、充分利用地质勘查数据，建立了基于GIS（Geographic Information System）的平台大庆探区外围盆地多源地学数据管理系统。该系统是大庆探区外围盆地地学数据库的组成部分，空间数据库使用GIS平台，属性数据库以Access2003作为底层数据库，采用MO（Map Object）控件，应用DAO（Data Access Object）技术，通过Visual Basic语言实现了系统的各项功能。该系统具有对原始空间数据和属性数据进行添加、删除、查询和维护等功能，并开发了常规重力数据处理功能，可对原始重力的异常数据进行解析延拓、垂向导数、水平方向导数、归一化总梯度处理等。该系统可对研究区的地质、物探、化探等多源地学数据进行综合分析与对比，为确定油气资源区的位置、数量、质量提供了基础信息和技术支持。

Peripheral Basin Multi-Source Geological Data Management System Based on GIS

To effectively preserve and use of geological survey data, the peripheral basin multi-source geological data management system in Daqing prospect was established based on GIS （Geographic Information System）. The system was one of the subdatabase of geoscience database in that area. Taking GIS and Access 2003 software as platform for establishing dimensional database and attribute database, and using Mapobject, DAO （ Data Access Object） technique and advanced programming language Visual Basic 6. 0, each function of the gravity database was realized. The system can carry out the function of data adding, deleting, inquiry and management, etc. Also, a toolbox for processing general gravity data was developed, which can realize the function of analytic continuation, vertical differentiation, horizontal differentiation, normalized general gradient calculation, etc. The geological, geophysical and geochemical data from the study area can be integrated, analyzed and compared by using this system. It can also provide basic information and technical support to determine the location, number and quality of the oil and gas resources region.