陕西省渭北铝土矿地质特征及找矿前景分析

永颉同心 · 发表于 2011-7-27 08:51

摘　要：渭北铝土矿带是陕西省两大铝土矿带之一.矿床产于下古生界碳酸盐岩不整合面上,为岩溶型铝土矿.矿体形态有似层状、透镜状和漏斗状,空间展布严格受基底古岩溶地形的控制.矿石类型属于一水硬铝石型铝矿,主要呈碎屑状、豆鲡状和泥状结构,致密块状和层状构造.矿石主要化学成分有:Al2O3、SiO2、Fe2O3、TiO2,Al2O3平均含量为55.05%～64.97%,SiO2平均含量为12.44%～15.16%,A/S平均为3.63～5.22.矿床受沉积间断、古气候、古纬度和古地形等因素控制.与我国主要铝土矿成矿区--河南、山西相类比,渭北地区具有相似的成矿地质和古气候条件,找矿前景较好,但以低品位矿石为主.
关键词：铝土矿;渭北地区;控矿因素;找矿前景
分类号：P618.45 　文献标识码：A
文章编号：1009-6248(2010)03-0093-06

基金项目：中国铝业公司铝土矿资源勘查项目(chalco2005-1)
作者简介：陈连红(1966-),男,河南西平人,高级工程师,1989年毕业于原西安地质学院地质勘查专业,从事矿产地质勘查与管理.E-mail:Ih_chen@chalco.com.cn
作者单位：陈连红（中国铝业公司,北京,100082）　
　　　　　王瑞廷（西北有色地质勘查局地质勘查院,陕西,西安,710054）　
　　　　　刘维东（中国铝业公司,北京,100082）　

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