GIS辅助下的岩相古地理重建  

Lithofacies Palaeogeographic Reconstruction Based on GIS

作　　者：李少华[1] 陈玉琨[1] 毛平[1] 周健[1] 

机构地区：[1]长江大学地球科学学院,湖北荆州434023

出　　处：《地理空间信息》2008年第5期25-27,共3页Geospatial Information

基　　金：湖北省教育厅青年基金资助项目(Q200612001);湖北省高等学校优秀中青年科技创新基金资助项目(T200602)

摘　　要：阐述了采用单因素分析多因素作图法和GIS的空间分析功能实现岩相古地理重建的方法。单因素是能独立地反映某地区、某地质时期、某沉积层段沉积环境某些特征的因素,如厚度、岩石类型、矿物成分等。单因素分析多因素作图是在单因素分析的基础上,把这些单因素图叠加起来,并结合其他资料进行综合分析,作出定量的岩相古地理图。在GIS平台基础上,采用单因素分析多因素作图法可以快速、准确地实现某一地区的岩相古地理重建。The facies palaeogeographic reconstruction can be achieved by using the single factor analysis and multifactor comprehensive mapping method and GIS spatial analysis functions. Single factors are the factors which can independently reflect some characteristics of sedimentary environments of a stratigraphie interval of a section in an area, such as the thickness of the interval and its specific rock types, texture constituents, etc. The multifactor comprehensive mapping method takes these quantitative single factor maps together and makes an integrative analysis. The reconstruction of lithofacies palaeogeography can he achieved in a particular area efficiently and exactly based on GIS system.

关 键 词：古地理 单因素分析 多因素综合作图 地理信息系统 叠加分析 

分 类 号：P299[天文地球—测绘科学与技术]