GIS辅助下的岩相古地理重建

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。

Lithofacies Palaeogeographic Reconstruction Based on GIS

The facies palaeogeographic reconstruction can be achieved by using the single factor analysis and mul-tifactor comprehensive mapping method and GIS spatial analysis functions. Single factors are the factors which can independently reflect some characteristics of sedimentary environments of a stratigraphic 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 in-tegrative analysis. The reconstruction of lithofacies palaeogeography can be achieved in a particular area effici-ently and exactly based on GIS system.