【摘要】 由于特征分析模型没有区别具有不同资源量的样品之间存在实际价值上的不同,而且没有充分地提取有关控矿变量对资源数量指示能力的重要信息,故使特征分析在本质上只适用于靶区的定性预测。本文通过对样品有序列的最优分割,建立分解模型,然后再经加权处理,建立一种新的特征分析模型,彻底克服了传统方法的不足,使得该法真正具有了对矿产资源做定量评价的功能。通过在某铌钽矿产资源评价的应用以及新老方法的对比,分解加权特征分析模型的效果和优点得到了证实。更多还原

【Abstract】 Characteristic analysis is applicable only to qualitative assessments of mineral resources, because this method does not take the fact that the practical values for samples from mineral resources are different for different reserves of the resources into consideration, and also not sufficiently extract the important information of ore controlling variables for indicating the quantity of the resources.In the present paper, through an ordered optimal dissection of a sample, a decomposed model is set up. After giving it a weighted treatment we build a new characteristic analysis model which can thoroughly overcome those drawbacks of conventional characteristic analysis method and is capable to make quantitative assessments of mineral resources.Both the new and conventional methods are used for Nb-Ta resource assessments. The test results show that the new method is more effective than the conventional one.更多还原