花岗岩定量分类方法及与成矿空间相关关系分析——甘肃省西秦岭地区为例  

THE METHOD FOR QUANTITATIVE CLASSIFICATION OF GRANITES AND RELATIONSHIP WITH METALLOGENIC SPACE——Taking its Application in West Qinling of Gansu Province

作　　者：王晓伟[1] 罗建民 王玉玺[1] 张琪[1] 宋秉田 杨忠明 赵彦庆[1] WANG Xiao-wei;LUO Jian-min;WANG Yu-xi;ZHANG Qi;SONG Bing-tian;YANG Zhong-ming;ZHAO Yan-qing(Geological Survey of Gansu Province, Lanzhou 730000, Chin)

机构地区：[1]甘肃省地质调查院,甘肃兰州730000

出　　处：《甘肃地质》2018年第1期26-31,共6页Gansu Geology

基　　金：甘肃省西秦岭地区综合信息成矿预测研究项目(甘地发[2014]158号);中国地质调查局地质调查项目"中国矿产地质与成矿规律综合集成和服务(矿产地质志)(项目编号:DD20160346)"资助

摘　　要：以Q型系统聚类分析(以组内连接为聚类方法,相关性为计算模型)和判别分析交替使用的方法,对甘肃省西秦岭地区花岗岩样本中的11个氧化物测试数据进行定量处理,构建起"甘肃省西秦岭地区花岗岩(氧化物)定量分类系列模型",将西秦岭地区花岗岩分为3大类共8小类。分类结果偏重于找矿分类,依据其与西秦岭地区铜矿、铅锌矿、金矿等依据空间关系(距离岩体3 km以内),寻找"成矿相关岩体",确定找矿靶区。In Q system clustering analysis（to set inside connection for clustering method,the correlation for calculating model）and the alternate use of discriminant analysis method,the granites samples of 11 oxides to quantitative test data processing in the west Qinling region in Gansu province,build up "the granites（oxide）quantitative classification of granite series model in west Qinling region in gansu province",the granites can be divided into three categories,a total of eight small classes.The classification results and the spatial relationship of copper,lead and zinc ore and gold mine in Xiqinling（within 3 kilometers of the rock mass）,searching for the"related rock mass",and determining the target area.

关 键 词：花岗岩 定量分类模型 “成矿相关岩体” 成矿空间关系 西秦岭 

分 类 号：P588.121[天文地球—岩石学]