Abstract
Reviewing fundamental procedures of geological survey from a viewpoint of computerization, we formulate a flow of data processing, in which different types of information on spatial distribution, attributes and relations of geologic units are integrated to be summarized in a form of geologic maps. The flow reveals that observations and interpretations of geologists are essential in the early stages from field survey to stratigraphic classification, and that there exists a clear algorithm of data processing in the subsequent stages leading to construction of a 3D model of geological structure and its visualization. We show a computer algorithm based on an idea of a logical model of geologic structure together with a practical example of data processing. Finally it is suggested that development of computer systems that support geologists in the early stage from field survey to stratigraphic classification is the remaining object toward realization of a computer geomapping system.
