【摘要】：在礦體定位預(yù)測(cè)方面,利用相關(guān)系數(shù)的方法,似定量、定量地建立找礦模型在業(yè)內(nèi)一直久攻未克,而這個(gè)難題的根源就在于無法實(shí)現(xiàn)不同自由度下相關(guān)系數(shù)的等效性比較。為解決這一難題,服務(wù)建模,指導(dǎo)找礦,在統(tǒng)計(jì)學(xué)的基礎(chǔ)上,將相關(guān)系數(shù)臨界值換算成F分布分位數(shù),利用F分布分位數(shù)計(jì)算出等效指數(shù)(存真概率),通過等效指數(shù)和假定的統(tǒng)一自由度反算出等效的F分布分位數(shù),再轉(zhuǎn)化為等效相關(guān)系數(shù),最終實(shí)現(xiàn)了不同自由度相關(guān)系數(shù)的統(tǒng)一自由度的轉(zhuǎn)換。為了嘗試等效相關(guān)系數(shù)的實(shí)用性,以河南省西峽縣蒲塘金礦某礦體為例,對(duì)轉(zhuǎn)換結(jié)果在找礦建模中的應(yīng)用進(jìn)行了檢驗(yàn),效果良好,由此證明,利用不同自由度下的簡(jiǎn)單相關(guān)系數(shù),通過統(tǒng)一自由度轉(zhuǎn)換求取等效相關(guān)系數(shù)的方法是合理的;利用等效相關(guān)系數(shù)和礦體標(biāo)高回歸建立礦體深度模型的方法是可行的。
[Abstract]:In the field of orebody location and prediction, using the method of correlation coefficient, it seems to be quantitative, quantitative and quantitative to establish the prospecting model in the industry for a long time, but the root of this problem lies in the inability to achieve the equivalence comparison of correlation coefficients under different degrees of freedom. In order to solve this problem, service modeling, guiding prospecting, on the basis of statistics, the critical value of correlation coefficient is converted to F distribution quantile. The equivalent exponent (true probability) is calculated by using the quantile of F distribution, the equivalent quantile of F distribution is calculated by the equivalent exponent and the assumed unified degree of freedom, and then the equivalent correlation coefficient is transformed into the equivalent correlation coefficient. Finally, the unified degree of freedom conversion of different degrees of freedom correlation coefficient is realized. In order to try the practicability of equivalent correlation coefficient, taking a ore body in Putang Gold Mine, Xixia County, Henan Province as an example, the application of conversion results in ore prospecting modeling is tested. It is reasonable to use the simple correlation coefficient under different degrees of freedom to obtain the equivalent correlation coefficient through the unified degree of freedom conversion, and it is feasible to establish the orebody depth model by using the equivalent correlation coefficient and the orebody elevation regression.
【作者單位】： 河南省地質(zhì)礦產(chǎn)勘查開發(fā)局第一地質(zhì)勘查院;河南省地質(zhì)礦產(chǎn)勘查開發(fā)局第三地質(zhì)礦產(chǎn)調(diào)查院;
【分類號(hào)】：P624

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