淮安市盐矿成矿约束条件分析及远景预测  

Analysis of metallogenic constraint condition and prospective prediction of salt deposits in Huai'an City

作　　者：缪卫东[1] 周绍荣 李小明 吴进飞 尚通晓[1] MIAO Weidong;ZHOU Shaorong;LI Xiaoming;WU Jinfei;SHANG Tongxiao(Geological Survey of Jiangsu Province,Nanjing 210018,Jiangsu,China;Huai'an Geology and Mineral Exploration Institute,Huai'an 223001,Jiangsu,China)

机构地区：[1]江苏省地质调查研究院,江苏南京210008 [2]淮安市地质矿产勘查院,江苏淮安223001

出　　处：《矿产与地质》2023年第5期970-977,共8页Mineral Resources and Geology

基　　金：江苏省地质勘查专项资金“江淮生态经济区核心地带(淮安)地质调查”(苏财建〔2018〕96号)项目资助。

摘　　要：淮安市盐矿包括淮安盐盆盐矿和洪泽盐盆盐矿,这两个盐矿的物源和控矿因素一直存在争议从而影响以后的找矿方向。为此,从淮安市盐矿所处大地构造位置、赋存地层、气候等条件进行了探讨。据此推断淮安市盐矿中洪泽盐盆盐矿和淮安盐盆盐矿均为海水留滞在适宜位置,经后期干热气候蒸发并埋藏成岩所致,具有同样的成矿机理,只是时间有差异、地点有差异。通过以上成因分析,对比周边地质条件和环境,认为同属盐阜坳陷带中的管镇、津里次凹及涟北涟南凹陷有相似的成矿成盐条件,是盐成矿的远景成矿区,其中涟北涟南凹陷中的次凹是更值得关注的地区。The salt mine in Huai'an City include Huai'an Salt Basin and Hongze Salt Basin.There has been a controversy over the source and controlling factors of these two salt mines,which will affect the future exploration direction.Therefore,the geological location,occurrence strata,climate and other condition of the two salt mines in Huai'an City are discussed.It is inferred that the two salt mines in Huai'an City are both caused by seawater retention at suitable location,evaporation in a later dry and hot climate,and buried into rock layers,with the same mineralization mechanism,but the mineralization period and location are different for each other.Based on the above genetic analysis and comparison of surrounding geological condition and environment,it is believed that Guanzhen,Jinli Sub sag,and Lianbei Liannan Sag,in the same Yanfu Depression belt,have similar mineralization and salt forming condition,and both are prospective mineralization areas for salt mineralization.Among them,the sub sag in Lianbei Liannan Sag is worth to focus on more prospecting attention.

关 键 词：淮安市盐矿 地质条件 成矿机理 海水留滞 

分 类 号：P619.211[天文地球—矿床学]