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本文提出固态矿体形态的三种基本模式,建立起相对勘探网度的概念,论证了采用了不同的相对勘探网度圈定矿体与计算储量可能产生的误差。在此基础上论述了合理的勘探工程系统应由基准网度、增补工程与验证工程组成。应用本文建立的相对勘探网度分析了国内一些矿床勘探实例,取得了一定的成效。固态矿产储量的表现形式,主要分为两种;其一,矿石量即储量,一般指有用组分含量高且变化较稳定的矿种,如煤矿、铁矿、石灰岩、铝土矿、锰矿、铬铁矿等,称为“全矿物原料”;其二,元素或氧化物或矿物数量为储量,按着有用组分含量多少与品位变化程度,分为“少量矿物原料”,如铜矿、铅锌矿等,与“微量矿物原料”,如云母矿、铀矿、脉金矿等。矿产储量的可靠性,对于全矿物原料决定于矿石量误差,而对少量与微量矿物原料,则不仅决定于矿石量误差,而且还取决于品位误差。勘探工程对矿体的控制,可分为对矿体形态的控制与对品位变化的控制两种。若二者的勘探网度要求不一致时,以工程最密的网度为准。
In this paper, we propose three basic patterns of solid ore body morphology, establish the concept of relative exploration network degree, and demonstrate the possible error of using different relative exploration network to delineate ore body and calculate reserves. On this basis, it discusses that a reasonable exploration engineering system should consist of a reference network, supplementary engineering and verification engineering. Based on the relative exploration network established in this article, some examples of exploration in some domestic deposits have been analyzed and some achievements have been achieved. There are mainly two kinds of forms of solid mineral reserves. First, the amount of ore reserves refers to those with high content of useful components and stable changes such as coal, iron ore, limestone, bauxite, manganese ore, Chromite, etc., which are called “all-mineral raw materials”. Secondly, the quantity of elements or oxides or minerals is the reserve. According to the content of useful components and the degree of change of grade, Lead and zinc, etc., and “trace mineral raw materials,” such as mica, uranium, vein gold and so on. The reliability of mineral reserves, for all the mineral raw material is determined by the amount of ore error, and for small and trace mineral raw materials, not only depends on the amount of ore error, but also depends on the grade error. Exploration project on the ore body control, can be divided into the control of ore body morphology and the control of grade changes in two. If the exploration network of the two requirements are inconsistent, the most dense network of the project shall prevail.