山东省泰安市大寺石膏矿床地质特征及成因探讨

Discussion on Geological Characteristics and Genesis of Dasi Gypsum Deposit in Tai'an City,Shandong Province

本文在分析山东省泰安市大寺石膏矿床地质特征时,根据大汶口盆地石膏矿带的发育情况对该地区的矿体(层)进行编号分析,发现该地区的主要特征是含矿岩系以碳酸盐岩—石膏岩—碎屑岩组合,属湖相沉积矿床,并且含有矿带属咸化深湖相。其中盆地边缘所发现的矿石其自身的质量相对较差,但是中心部位的矿石其质量则相对较好。矿石工业类型属建筑材料用石膏,石膏矿床原因是湖水经过了浓缩后,由于古环境、古气候进而逐步造成的,为以后研究山东省泰安市大寺石膏矿床地质特征作出贡献。

In this paper,when analyzing the geological characteristics of the Dasi gypsum deposit in Tai'an City,Shandong Province,the ore bodies(layers)in the area are numbered and analyzed according to the development of the gypsum ore belt in the Dawenkou Basin.It is found that the main feature of this area is that the ore-bearing rock series is composed of carbonate rock-gypsum rock-clastic rock,which belongs to the lacustrine sedimentary deposit,and the containing ore belt belongs to the salty deep lake.The quality of the ore found at the edge of the basin is relatively poor,but the quality of the ore at the center is relatively good.The type of ore industry is gypsum for building materials.The reason for the gypsum deposit is that after the lake water has been concentrated,it is gradually created due to the ancient environment and climate.It will contribute to the future study of the geological characteristics of the Dasi gypsum deposit in Tai'an City,Shandong Province.