【摘要】 在滨海砂矿的调查研究中,运用数理统计的方法,可以解决许多的实际问题,并且具有一定的经济意义.本文着重对用一元线性回归分析代替部分矿种或化学指标的分析和用数理统计方法研究滨海砂矿的富集规律方面进行了探讨,以及用多元回归分析预测砂矿远景区方面进行了讨论.更多还原

【Abstract】 Many problems in the studies of littoral placer deposits will be solved by making use of the method of mathematical statistics. The application of this method to the analysis of 8 minerat species in several tens of mining districts, to the studies of enrichment law of littoral placer deposits and to the predi-ction of mineralization potential areas, has given us some knowledge as follows:1. Linear regression analysis, when used, can help establish mathematical models (regression equations) of commercial minerals and chemical compositions of littoral placer deposits, and then some analysis of mineral species and chemical compositions can be replaced by the calculation method, thus the analysis coasts will be reduced. However, littoral placer deposits have their own special characters. The regression analysis of the samples must take some certain steps to establish rapidly and efficiently the regression equations of actual significance. These steps and some examples are explained in detail in this paper.2. In the studies of enrichment law of littoral placer deposits, the method of mathematical statistics can be applied to analyse quantitatively the relations of sediment grain sizes with placer grade and to indicate grain size distribu-tions and associations of commercial minerals. This knowledge can help search for the environments and morphologic units favourable for the enrichment of commercial minerals. In addition this paper has recounted in detail the relation of sorting and mean grain sizes with compositions of silica sands, the relation of different grain-sized silica sand with its grade, the relation of sorting of heavy mineral placer with its grade, the relation of placer gold grade and grain size with gravel content and size, and the characteristics of associatirn and grain size distribution of common commercial heavy minerals.3. Multivariate regression analysis may become a useful method for the prediction of littoral placer potential areas. This method is also discussed in the paper.更多还原