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工业指标是圈定矿体和计算储量的依据。但是在储量计算过程中对工业指标的理解往往各不相同,从而在应用时也常有不同的用法,这些分歧主要表现在对最低工业品位指标的理解和边界品位指标的应用上。本文拟举二个例子来探讨有关的问题。一、细脉带型锡石硫化物矿床矿区有Ⅰ、Ⅱ二个主矿体。Ⅰ矿体长325米,宽25米;陡倾斜,延深达230米;细脉
Industrial indicators are the basis for delineating ore bodies and calculating reserves. However, the understanding of industrial indicators often varies in the course of reserves calculation, and thus often has different usages in application. These differences are mainly manifested in the understanding of the minimum industrial grade index and the application of the boundary grade index. This article proposes two examples to explore the related issues. First, the fine vein belt Cassiterite sulfide ore deposits have Ⅰ, Ⅱ two main ore body. Ⅰ ore body 325 meters long, 25 meters wide; steep slope, up to 230 meters deep; veins