池州地区奥陶系仑山组化工用灰岩矿层特征

Characteristics of Chemical Limestone Ore Bed of Ordovician Lunshan Formation in Chizhou Area

池州地区化工用石灰岩矿产蕴藏量丰富,主要含矿地层为早古生代奥陶系下统仑山组上段。系统梳理了池州地区化工用石灰岩矿产地、早古生代奥陶系下统仑山组上段含矿地层的区域分布和基本层序特征。池州地区仑山组上段含矿地层主要分布于下扬子前陆带的东至-泾县断褶带北部和沿江褶断带南侧,化工用石灰岩矿产地主要分布于高坦深断裂带以南的东至县洋湖地区、石台县小河—丁香—七井地区、贵池区棠溪地区、青阳县酉华地区。含矿地层基本层序总体由3个部分组成,其中上部灰岩和下部灰岩为化工石灰岩矿层。

The limestone mineral reserves for chemical industry in Chizhou area are abundant,and the main ore-bearing strata are the upper section of Lunshan Formation of Lower Ordovician in Early Paleozoic.This paper systematically combs the regional distribution and basic sequence characteristics of the chemical limestone deposits in Chizhou area,and the ore-bearing strata in the upper section of the lower Ordovician Lunshan Formation in the early Paleozoic.The ore-bearing strata of the upper section of the Lunshan Formation in the Luochizhou area are mainly distributed in the northern part of the Dongzhi-Jingxian fault-fold belt in the lower Yangtze foreland belt and the southern side of the riverside fault-fold belt.The chemical limestone mineral deposits are mainly distributed in the Yanghu area of Dongzhi County,the Xiaohe-Dingxiang-Qijing area of Shitai County,the Tangxi area of Guichi District,and the Youhua area of Qingyang County.The basic sequence of ore-bearing strata is generally composed of three parts,of which the upper limestone and the lower limestone are chemical limestone strata.