Lithofacies palaeogeography Reconstruction based on GIS

摘要

The facies palaeogeographic reconstruction can be achieved by using the single factor analysis and multi-factor 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 integrative analysis. The reconstruction of lithofacies palaeogeography can be achieved in a particular area efficiently and exactly based on GIS system.