Problem of codes of geological ages in the process of establishment of the geological map database;

New concept and idea of the establishment of the geological map database——An understanding of the international standard of the "ISO/DIS 19117 Geographic information-Portrayal".;

Object-oriented geological map data model:research and practice;

The article states four aspects in detail in the process of computer supported charting of geologic map:the formation of geologic informational data base,the digitizing of geologic factors,the automation of charting synthesis and computer management of geologic symbols.

Aiming at the actual demands of dynamic protracting and real time updating of geologic map in oilfield, we have studied the practical methods of protracting geologic map based on WebGIS.

Study and application of XRF technique in-suit in large scale geological mapping;

Method of using regional geochemical data in geological mapping in shallow overburden areas;

The application of the auxiliary method of section on linking up geological boundary in the process of geological mapping;