黔北道真向斜西翼铝土矿地质特征及成因探讨
West-China Exploration Engineering(2016)
Abstract
道真向斜位于务正道铝土矿带的西部边缘,在其西翼现已查明4个铝土矿床,估算(332)+(333)+(334)?铝土矿资源量约4000×104t.对含矿岩系分布、矿体产出特征、矿石类型及其底板黄龙组厚度进行系统分析,认为:由北向南矿体规模逐渐增大;含矿岩系厚度与矿体厚度呈正相关,与黄龙组厚度之间呈负相关关系;区内残存黄龙组分布特征,揭示古地理环境为地势相对低的古地貌,水体交替作用相对弱,从而脱硅富铝作用也相对弱,所以区内矿石类型大多为铝硅比不高的块状、致密块状和豆鲕状矿石.
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