3D Geological Modeling Method of Inverted Fold Based on Section Line and Keel Line Control

Abstract

Based on the 3D geological modeling method of inverted folds controlled by profile lines and keel lines, this method first assigns age attributes to the bottom boundary of the formation according to the chronological strata to which the bottom boundary of the formation belongs; then changes the boundary control point sequence of the bottom boundary of the formation, and draws the The keel line intersecting the bottom boundaries is constructed by triangulation to obtain the bottom interface of the strata of this age; then the initial three-dimensional geological body model is constructed; finally, the initial three-dimensional geological body model is cut sequentially by using the bottom interface of all age strata, and the fine inverted folds are obtained. The three-dimensional geometric structure model; this method uses the profile stratum line and the keel line to obtain a series of scattered point sets with an orderly and uniform distribution in space, which overcomes the problem that the space scattered points of the conventional interpolation method is chaotic and the bottom interface of the stratum cannot be constructed. The addition of , so that geological cognition can be integrated into the control of the shape of the ground surface, and the interface is more in line with the actual geological significance.

Description

technical field [0001] The invention relates to a three-dimensional geological modeling method for inverted folds based on the control of section lines and keel lines, and belongs to the field of three-dimensional geological structure modeling. Background technique [0002] Manganese occupies a very important strategic position in the national economy. With the gradual reduction of surface mines, shallow mines, and easily identifiable mines, the direction of ore prospecting is gradually shifting from surface mines to deep concealed ore bodies, and the demand for mineral resource prediction is increasing day by day. 3D geological modeling technology can intuitively and accurately reconstruct the structure of geological objects based on the model, and vividly express the spatial shape and distribution of geological bodies. Therefore, establishing a fine three-dimensional geological model for manganese deposits allows geological and mining technicians to understand the geologic...

AI Technical Summary

Problems solved by technology

Inverted folds, a multi-valued geological structure formed by complex structural deformation, greatly increase the difficulty of modeling, and cannot use conventional surface modeling methods to construct its shape

Images