Basic elements of three dimensional geologic model and logical model of geologic structures

Abstract

The spatial distribution and the relation of geological units based on the three dimensional ( -D) model inferred from various geologic data are expressed in a general geological map. There are many difficulties to be solved regarding the information of the geologic map, such as the problems of objectivity, reproducibility, renewability, extensibility, compatibility, flexibility and versatility. For the effective utilization of geologic information, it is necessary to construct a -D geologic model that can provide better understanding and high reliability. The basic elements of a -D geologic model are essential for the construction of the model, and are composed of the observed data, the inferred information, the logical model, boundary surfaces and the construction method including the method of surface estimation. The logical model of geologic structure using discrete mathematics is one of the mathematical models used for geologic modeling. The logical model of geologic structure is represented by the logical relations between geologic units and boundary surfaces, and can be derived theoretically from the geologic history. These problems of geologic map utilization can be solved by the disclosure of geologic information about both the -D geologic model and its basic elements.