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3-D geological reserve estimation method of ore deposit

A three-dimensional geology and reserves technology, applied in the field of high-precision computing, can solve the problem of not meeting the needs of surface mineral analysis, and achieve the effect of high reliability and good visualization effect.

Inactive Publication Date: 2019-01-22
SUN YAT SEN UNIV
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Problems solved by technology

At present, the multi-fractal mineral resource prediction theory is used to carry out resource exploration and evaluation in multiple metallogenic areas. However, with the continuous development of electronic computers and 3D visualization technology, traditional analysis methods can no longer meet the existing analysis needs of surface minerals.

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  • 3-D geological reserve estimation method of ore deposit

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Embodiment Construction

[0006] The present invention comprises the following steps:

[0007] Block model statistical method for reserve estimation: A blank ore block model is established on the basis of 3D geological modeling. The ore block model is composed of a series of small cuboid unit blocks of the same size, and the ore body is approximately expressed by the unit block. Each unit Blocks have corresponding attributes to represent the grade value of a certain position inside the ore body. The difference between the attributes of the unit blocks represents the change law of the internal grade of the ore body. The block interpolation is carried out by using the distance inverse weighting method. The interpolation distance is based on Search for the radius of the ellipsoid to determine the number of block units involved in the interpolation operation. According to the actual situation such as the distance between the borehole and the exploration line in the area, after one interpolation, check the i...

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Abstract

The invention discloses a method for estimating three-dimensional geological reserves of ore deposits. On the basis of modern metallogenic prediction theory research, the invention applies three-dimensional geological modeling technology to establish a surface model, a fracture model, a stratigraphic entity model and an ore body model of a radial opening ore section in combination with the existing topographic geological map, a prospecting line section map, borehole data and the like. On this basis, the mineral resources reserves of ore body are estimated by geological block method and block model statistical method respectively, and the results of two kinds of reserves estimation are analyzed. The analysis results show that the block model statistical method is more widely used than the geological block method, and the effect is more accurate. The method can clearly express the characteristics of ore body grade change, and further deepen the understanding of the spatial distribution of ore bodies and ore deposits.

Description

technical field [0001] The invention specifically relates to a method for high-precision calculation of ore body reserves in a three-dimensional visualization environment. Background technique [0002] With the decrease of surface minerals and shallow mineral resources, deep mines and hidden mines have gradually become the main exploration objects in various countries and regions. At present, the multi-fractal mineral resource prediction theory is used to carry out resource exploration and evaluation of multiple metallogenic regions. However, with the continuous development of electronic computers and 3D visualization technology, traditional analysis methods can no longer meet the existing analysis needs of surface minerals. Contents of the invention [0003] Aiming at the existing problems, the present invention aims to provide a method for estimating three-dimensional geological reserves of ore deposits. [0004] For this reason, the present invention adopts following t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05
CPCG06T17/05
Inventor 周永章高乐张彦龙王若嘉
Owner SUN YAT SEN UNIV
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