Abstract: Through analysis on porosity of the Quaternary deposits and research on properties of minerals and rocks, and the data of density, the compression ratio and consolidation ratio of different deposited rocks in target area can be calculted. According to the consolidation ratio, the original thickness of deposits at certain depth can be calculated, too, so that it is possible to delineate the lithofacies-paleogeographic profile of original deposits. This kind of profile is useful for correlation of complicated coal seams and analysis on sedimentary evolution.