Abstract：]In order to increase the efficiency of the gravity method in studying the structural characteristics of the PreCenozoic basement in Vietnam, the authors have formulated a methodological system of integrated analysis of geologic and geophysical data. The results obtained show: \; 1)The great difference in average density is the basic factor indicating the efficiency of the gravity method in studying the PreCenozoic basement in Vietnam. 2) It is possible to use multidimensional linear correlation analysis in efficiently studying and forecasting the occurrence depth and density of the PreCenozoic basement rocks. 3)By applying multidimensional linear analysis for predicting the density combined with Poisson coefficient we are allowed to predict the PreCenozoic basement rocks.
