江苏省谢碾矿区周高块段岩盐矿地质特征及成矿规律

Geological Characteristics and Metallogenic Regularity of Rock Salt Deposit in Zhougao Block of Xieyan Mining Area,Jiangsu Province

矿区位于鲁苏隆起的南部,苏北坳陷的西北部。地层倾角较缓,总体呈现西高东低的单斜构造,含盐系地层为上盐亚段、中淡化亚段和下盐亚段(即整个浦口组二段地层),矿床属内陆断陷盆地中的沉积矿床,主要找矿标志为矿层顶板的灰色钙芒硝泥岩。研究成果对以后同类矿床勘查具有一定的参考价值。

The mining area is located in the south of Lusu uplift and the northwest of Subei Depression.The stratigraphic dip angle is relatively slow,and the monocline structure is generally high in the west and low in the east.The salt-bearing strata are the upper salt submember,the middle desalination submember and the lower salt submember(namely the whole second member of Pukou Formation).The deposit belongs to the sedimentary deposit in the inland fault basin,and the main prospecting indicator is the gray calcium mirage mudstone in the roof of the ore bed.The research results have certain reference value for similar deposit exploration in the future.