江苏盱眙鹰咀山凹凸棒石黏土矿地质特征及成因浅析

Geological Characteristics and Genesis of Yingzuishan Attapulgite Clay Deposit in Xuyi County, Jiangsu Province

鹰咀山凹凸棒石黏土矿位于苏皖凹凸棒石黏土成矿带北东端,赋存于新近系下草湾组中。本文总结了鹰咀山凹凸棒石黏土矿Ⅳ号矿层的矿体地质特征,分析了矿石的结构构造、矿物组成、化学成分、物化性能以及工艺性能。通过成矿特征、沉积环境、成矿物质来源的分析、总结,初步探讨了矿床成因,认为鹰咀山凹凸棒石黏土矿属于内陆湖泊玄武质火山—沉积型矿床。

Yingzuishan attapulgite clay deposit is located at the northeast of the Jiangsu-Anhui attapulgite clay metallogenic belt, occurs in the Xiacaowan formation of Neogene. This paper summarized the geological characteristics of the ore body of the fourth ore bed of Yingzuishan attapulgite clay mine, and analyzed the structure, mineral composition, chemical composition, physical and chemical properties and technological properties of the ore. Through the analysis and summary of metallogenic characteristics,sedimentary environment and source of metallogenic materials, the genesis of the deposit is preliminarily discussed. It is considered that the Yingzuishan attapulgite clay deposit belongs to the basaltic volcanic sedimentary type deposit in inland lakes.