河南袁家庄石膏矿矿床地质特征及成因  

Study of Geological Characteristics and Genesis of Gypsum Deposit in Yuanjiazhuang,Henan Province

作　　者：刘晓[1] 刘朝阳[1] 范天甲[1] 张秀云 翁红波 张焕 LIU Xiao;LIU Zhao-yang;FAN Tian-jia;ZHANG Xiu-yun;WENG Hong-bo;ZHANG Huan(The Second Geological Exploration Institute,Henan Province Bereau of Geo-Exploration and Mineral Eevelopment,Zhengzhou 450008,China)

机构地区：[1]河南省地质矿产勘查开发局第二地质勘查院,河南郑州450008

出　　处：《中国非金属矿工业导刊》2020年第3期37-41,共5页China Non-Metallic Minerals industry

摘　　要：河南省汝州市袁家庄石膏矿床所属大地构造位置为豫中地区华北地台南缘,矿床赋存于下寒武统朱砂洞组一段含石膏白云岩地层中。本文对该石膏矿床的区域成矿地质背景、矿床地质特征、石膏矿层特征、矿体与矿石等特征进行了系统研究,在此基础上总结了河南省早寒武世石膏矿床成因为海相蒸发泻湖相碳酸盐岩硫酸盐岩沉积型石膏矿床,并归纳了该类石膏矿床的直接和间接找矿标志,对今后在华北地区相似地质背景下寻找同类型石膏矿床具有重要指导意义。The geotectonic location of Yuanjia-zhuang gypsum deposit is located in the south margin of North China platform in the central Henan region,Ruzhou city,Henan province.The deposit occurs in the gypsum-bearing dolomite strata in the first member of Zhushadong formation in the lower Cambrian Series.On the basis of discussing the ore-forming geological background of gypsum deposits,we conduct a systematic study of the regional geological background,geological features of the gypsum deposit,gypsum seam features,orebody and ore characteristics.Then we draw conclusion that the ore genesis of Yuanjiazhuang gypsum seposit in early Cambrian in Henan province is sedimentary pattern gypsum deposit in carbonate and sulfate rocks in Marine evaporite lagoon facies and summarize the direct and indirect prospecting marks of the gypsum deposit.It has a guiding significance for searching for the same type of gypsum deposit in the south central region of Henan province.

关 键 词：石膏矿 矿床地质特征 找矿标志 汝州市袁家庄 

分 类 号：P619.261[天文地球—矿床学]