An attempt has been made at geological interpretation of the data of size able coverage areas obtained by Landsat by means of digital image processing and model identification.The method of non-supervise classification proposed in this study is essentially an improved variety of cluster algorithm.It is not only characterized by convenience rapidity and easier adaptation to minicomputer from the viewpoint of formation

disintegration and integration of initial condensation points

but also enhances the interactive function and makes the result of classification more satisfactory.The output result of classification displays the special distribution of soil types.Since the distribution of some soils corresponds to relative subsurface structures

a feasible approach is provided for geological interpretation of covered areas.