利用煤层微量元素赋存丰度差异建立煤层判别函数  

Establishing of Discriminant Function with Trace Elements of Coal Seams

作　　者：李源 苏明金[2] 

机构地区：[1]煤炭开采国家工程技术研究院,安徽淮南232033 [2]淮南矿业集团地质勘探工程处,安徽淮南232052

出　　处：《煤炭技术》2014年第4期95-97,共3页Coal Technology

摘　　要：基于不同煤层微量元素丰度差异,以顾桥矿B组煤下部主要可采8、6-2、4-2煤层为例,解析了在构造发育、常规手段难以判明其层位的条件下,利用微量元素各指标测试值在SPSS中建立不同煤层判别函数,回判正确率达到81.6%;为满足生产要求,增选煤层厚度M、突出综合指标K 2个参数,对原判别函数加以修正,回判率提高至97.4%;并利用修正后的判别函数,准确判别了该矿经断层错动后煤层归属。Based on the differences from abundance of trace elements between coal seams,this paper analyzes how to establish discriminant functions for different coal seams in SPSS with test results of trace elements,taking 8,6-2,4-2 coal seams in group B for example,which are the lower parts of primary mineable coal in Guqiao Mine,under the conditions of structural development,when it is difficult to judge coal seams ascription with conventional means,and the percent of ＂grouped＂ cases correctly classified is 81.6%; In order to meet production requirements,this paper adds two parameters,the seam thickness M and the prominent composite indicator K,to correct the original discriminant function,and the percent increases to 97.4%; At last,it accurately distinguishs the vesting of coal seams changed by fault movements in surface boreholes of Guqiao Mine.

关 键 词：煤层 微量元素 顾桥矿 判别函数 应用 

分 类 号：P618.11[天文地球—矿床学]