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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >New systems for geological modelling-black box or best practice?
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New systems for geological modelling-black box or best practice?

机译：用于地质建模的新系统-黑匣子还是最佳实践？

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摘要

A 'geologically constrained' orebody model has long been hailed as vital for a Mineral Resource statement that is compliant with the South African Code for Reporting of Exploration Results, Mineral Resources and Mineral Reserves (SAMREC Code). In this paper, the requirements for geological modelling as contained in the outline for the SAMREC Code are considered, and whether the new modelling software available on the market is a 'black box' or is better for modelling than traditional methods of .wireframe creation.Implicit geological modelling is a technique that uses a radial basis function to establish and update geological models relatively quickly and efficiently from borehole data, outcrop data, manually interpreted vertical or horizontal sections, and structural data. Assays and any coded drill-hole data, such as lithology and alteration, can be interpolated.Leapfrog Ceo software is an example of this new approach to geological modelling. A case study of a short training course in geological modelling for non-geologists at the University of Witwatersrand, as part of the Higher Certificate in Mineral Resource Management, is presented. The benefits of this type of geological modelling software are considered for this type of assignment as well as for mining industry applications.The use of geological models in mine planning is reviewed and a case study is presented comparing the variations in mine plan design and financial output of 13 final-year Mine Design projects from the University of the Witwatersrand School of Mining Engineering. These designs were all based on the same geological model created in the traditional way, and yet the resultant mine designs were significantly different, with very different resulting financial outlooks for the project. This raises questions as to how significant a very detailed model in the pre-feasibility and feasibility phases of projects really is, considering the huge costs involved in gathering the required data to build a SAMREC-compliant geological model.
机译：长期以来，人们一直认为“受地质限制”的矿体模型对于符合南非《勘探结果，矿产资源和矿产储量报告规范》（SAMREC规范）的矿产资源声明至关重要。在本文中，考虑了SAMREC编码概述中所包含的地质建模要求，以及市场上可用的新建模软件是“黑匣子”还是比传统的线框创建方法更好的建模。隐式地质建模是一种利用径向基函数从钻孔数据，露头数据，人工解释的垂直或水平剖面以及结构数据中相对快速有效地建立和更新地质模型的技术。可以插入分析和任何编码的钻孔数据，例如岩性和蚀变。LeapfrogCeo软件是这种新的地质建模方法的示例。作为矿产资源管理高级证书的一部分，本文提供了维特沃特斯兰德大学非地质学家短期地质培训课程培训的案例研究。这种类型的地质建模软件的好处被考虑用于此类任务以及采矿业的应用。审查了地质模型在矿山规划中的使用，并提供了一个案例研究，比较了矿山规划设计和财务产出的变化威特沃特斯兰德大学矿业工程学院的13个最后一年的矿山设计项目。这些设计均基于以传统方式创建的相同地质模型，但最终的矿山设计却大不相同，因此项目的财务前景也大不相同。这就提出了一个问题，即考虑到收集所需数据以建立符合SAMREC的地质模型所涉及的巨额成本，在项目的预可行性和可行性阶段中，非常详细的模型的重要性到底有多大。

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