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- Title
风化壳型矿床划分地质块段的数理统计与图解分析― 以云南省武定县梅子篙钦铁砂矿V1 号矿体南矿段为例.
- Authors
何云; 何照波; 严城民; 周晓峰; 张云生; 关志邦; 徐延强; 苗品俊
- Abstract
The resource estimation of weathering crust type deposits generally utilizes the geological block method by horizontal projection.At present, the principles and methods of geological block division are not unified.Exemplified by the southern segment of V1 orebody from the Meiziqing weathering crust type placer ilmenite deposit in Wuding County of Yunnan Province penetrated by 78 drillholes, this work conducted mathematical statistics and diagrammatic analysis of the main parameters on which geological block division was based, including vertical thickness(m)of the orebody, ilmenite concentration(kg/m~3)and rutile concentration(kg/m~3),and proposed the method of geological block division.Specific procedures are as follows:(1)an area delineated by three or four adjacent drillholes in exploration network serves as a basic block;(2)to statistically calculate the main parameters of drill intersections and basic blocks, and to diagrammatically analyze the main parameters and key parameters of the basic blocks;(3)to merge the adjacent basic blocks with the same key parameters to obtain a reasonable geological block division scheme.The method can reasonably control the number of geological blocks and optimize the geological block division scheme, which is scientific, reasonable, simple and practicable.This study can be used in mineral resource estimation of weathering crust type ilmenite placer deposits and other weathering crust deposits.
- Publication
Geology & Exploration, 2023, Vol 59, Issue 1, p43
- ISSN
0495-5331
- Publication type
Article
- DOI
10.12134/j.dzykt.2023.01.004