MEASUREMENT OF SHAPE AND ORIENTATION OF SAND GRAIN ELLIPSOID——THE APPLICATION IN THE PHASE ANALYSIS OF XIANGSHAN GROUP IN NANJING

The measurement and analysis of the texture of sandstone can provide a lot of information and the basis for the palaeocurrent analysis, basin analysis and palaeoenvironmental reconstruction. Sedimentationists have done a lot of researches in this field and proposed many theories and methods in the measurement of texture. But these methods are not satisfactory.