品位指标是合理拓大矿体空间的手段  

Grade Index is the Way of Reasonably Extending the Space of Ore Body

作　　者：徐焘 

出　　处：《中国国土资源经济》2013年第1期10-16,共7页Natural Resource Economics of China

摘　　要：品位指标的作用是:在利用初等丰度矿量的产品成本相当于目标市场价格的前提下,控制其有用成分含量的下限,并以此为准来拓宽矿体。当矿量的规模足够大时,品位指标随开发程度的上升而下降,因为处在各个开发阶段因而具有相应级别的矿量需要进一步投入的开发费用呈下降的趋势,它们各自的品位指标也依次递减。This paper introduces the functions of grade index using the production costs of elementary abundance ore quantity equivalent to target market price to control the lower limit of useful component content and with this accurate to broaden the ore body.When the size of the ore is big enough, the grade index will decrease along with the rise of development degree. As at various stages of development, the development costs for further investment with regard to corresponding level of ore will be a downward trend with their ~rade index decreased in turn.

关 键 词：级差品位指标制 影子价格 初等丰度资源 平均品位 边界品位 

分 类 号：F407.1[经济管理—产业经济]