湖南省衡南县咸塘钙芒硝矿地质特征及矿床成因分析

Geological features and metallogenetic rules of the glauberite deposits of Xiantang in Hengnan county of Hunan

摘要: 咸塘钙芒硝矿赋存于始新世中期的下第三系霞流市组茶山坳段中上部第四岩性带 -上硫酸盐带中。共有矿体(层)3个,以I、II^#矿体(层)为主, 呈层状、似层状和透镜体产出;平均厚32.17m,最大厚度达60余m;平均品位Na₂SO₄23.96%~27.16%,最高达44.73%;矿石组分简单,主要为钙芒销、石膏、硬石膏。矿床成因属内陆湖相蒸发沉积之层状硫酸盐型钙芒硝矿床。

Abstract: The glauberite ore of Xiantang in Hengnan county has been explorated, and there are 3 ore beds in there.The main ore beds are body I and body II. The ore bodies occurred as beded, bed-like and lens-like. The average thickness of ore beds is 32.17m, and the most thickness is more than 60m, the average grade of Na₂SO₄ is 23.96%~27.16%, the highest grade of Na₂SO₄ is up to 44.73%. The constituents of ore is simple being mainly glauberite, gypsum and anhydrite. The deposits belong to the evaporate bed-like Sulfate-type saline glauberite deposits of the inland lake facies.