Abstract: The paper introduces the International Commission for Geoscience Information of IUGS (CGI) and its main standards on geoscience markup language GeoSciML, Earth resource markup language EarthResourceML, and the vocabulary of Geoscience Terminology. Modeling method and pedigree chart of GeoSciML have been briefly introduced. Modelling theories, methods and structures of GeoSciML and EarthResourceML have been described by using package diagrams and class diagrams of UML, and the multi-language
vocabulary is listed. Geologic Unit, Geologic Structure, Geomorphologic Feature and Geologic Event of GeoSciML Basic package are presented as the main focus. So as the two main packages of EarthResourceML, Mineral package and Mineral Occurrence package. The former package containsmany classes related to activities in the mining process, and the MO package describes factors independent from human activity, such as mineral resources, deposit types, and mineralization models. Inspired by the thorough investigation, a primary geological data model based on GeoSciML and a mining rights data model based on EarthResourceML are proposed. They offer good solutions to discover new geologic features by exploring dynamic relations between different geoscience data model, and provide excellent references to geoscience data sharing.

Key words: CGI, GeoSciML, UML, data transfer, data model, Web Feature Service