摘要
鱼里铝土矿床赋存于晚石炭世本溪组碳酸盐岩不整合面上,严格受沉积间断面控制,为一套含铁富铝的铁铝质黏土岩组合。矿体规模为中型,呈层状、似层状,局部透镜状,矿石构造类型为碎屑状、砂(粒)状、蜂窝状、豆鲕状及致密块状,矿物成分以一水硬铝石为主,有害元素少,并伴生镓元素。潟湖—沼泽环境是铝土矿形成的有利条件,矿体的形态、产状和厚度受古地形的控制,与含矿岩系的厚度正相关,大厚度的含矿岩系基本上是在溶岩洼地中产生的,含矿岩系厚度大的地段往往伴随着高质量和大厚度的铝土矿。
Yuli bauxite deposit occurs on the carbonate unconformity of Benxi Formation in the Late Carboniferous.It is strictly controlled by the sedimentary discontinuity.It is a set of iron aluminum rich ferroaluminous clay rock association.The ore body is medium-sized,layered,stratoid and locally lenticular.The ore structure types are clastic,sandy(granular),honeycomb,pisolitic and oolitic and dense massive.The main mineral composition is diaspore,with few harmful elements and associated with Ga.Lagoon swamp environment is a favorable condition for the formation of bauxite deposit.The shape,occurrence and thickness of the ore body are controlled by the ancient terrain and positively correlated with the thickness of ore bearing rock series.The thick ore bearing rock series are basically produced in the karst depression,and the sections with thick ore bearing rock series are often accompanied by high-grade and thick bauxite ore bodies.
作者
陶世旭
张彦锋
李赞
潘杰
裴满意
孙佳楠
李国琦
Tao Shixu;Zhang Yanfeng;Li Zan;Pan Jie;Pei Manyi;Sun Jianan;Li Guoqi(No.4 Geological Exploration Institute,Henan Bureau of Geology and Mineral Exploration,Zhengzhou 450001,China)
出处
《能源与环保》
2023年第4期148-153,165,共7页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
基金
河南省省级地质勘查基金项目([2017]-8)。
关键词
鱼里铝土矿
地质特征
控矿因素
找矿标志
Yuli bauxite
geological characteristics
mineral control factors
prospecting marks
