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Method for determining grade areas of resource reserve estimation

A technology of grade and reserves, applied in the field of geological mining, can solve the problems of cumbersome process and ambiguity of parameter K value, and achieve the effect of less human factors, easy promotion, strong operability and repeatability

Active Publication Date: 2017-05-31
中铁资源集团有限公司
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  • Description
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AI Technical Summary

Problems solved by technology

[0022] Influence coefficient method: using this method, the process is relatively cumbersome, and there is ambiguity in the determination of the parameter K value
[0023] Decile Analysis: considers the amount of metal and is fast, but only applicable to some specific deposits

Method used

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  • Method for determining grade areas of resource reserve estimation
  • Method for determining grade areas of resource reserve estimation
  • Method for determining grade areas of resource reserve estimation

Examples

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Embodiment 1

[0050] This application takes a strata-bound copper deposit in the Congo (Gold) copper-cobalt ore belt as an example. The ore deposit has mainly experienced three stages of mineralization: syngenetic deposition, hydrothermal transformation and supergene enrichment. The copper deposit is divided into two relatively independent ore sections, K ore section and M ore section. The upper part of K ore section is oxide ore, and the lower part is sulfide ore; M ore section is all oxide ore. According to the macro-geological characteristics, the ore deposits are divided into three mineralized domains, namely K-oxidized ore, M-oxidized ore and K-sulfide ore, and the grade domains for resource reserves estimation are determined by fractal method.

[0051] 1. First calculate the grade range of K-oxidized ore.

[0052] (1) Data collation. The raw data of K‐oxidized ore were combined in 1m equal length in Micromine software (it can also be done in other mining 3D software), and the combine...

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Abstract

The invention discloses a method for determining grade areas of resource reserve estimation. The method includes the steps: 1, managing data; 2, establishing a fractal model; 3, calculating threshold values of the grade areas. The fractal method organically combines geologic features with statistical features of grades, can not only effectively distinguish between the grade areas and outliers (an extra-high value and an extra-low value) of the resource reserve estimation but also subdivide mineralized areas into low grade areas, middle grade areas and high grade areas, corresponds to the features of multiple phases, multiple stages or combinations of multiple mineralization types of mineralization, and provides a geological interpretation of grade distribution. The method is high in maneuverability and repeatability, relatively fewer in human factor and easy to generalize.

Description

technical field [0001] The invention belongs to the technical field of geology and mining, and in particular relates to a method for determining the grade range of resource reserve estimation. Background technique [0002] The formation of metal deposits is restricted by multiple geological factors such as lithology, structure, and fluids. The ore-forming geological process often has the characteristics of multiple stages and stages, creating mineralized zones with different geological characteristics and different grade distribution characteristics. According to the different ore-controlling geological elements and ore characteristics, the mineralization zone can be divided into different mineralization domains (geological domains ormineralization zones). For example, mineralized bodies with co-associated components of different industrial values, mineralized bodies with different spatial distributions, mineralized bodies with different occurrence characteristics such as la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/02
CPCG06F30/20G06Q50/02
Inventor 高帮飞谢徽沈阳谢添
Owner 中铁资源集团有限公司
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