摘要
硝口岩盐矿床位于六盘山盆地中南部,具有平面上分布范围较小,垂向上厚度巨大,沿走(倾)向变化大的特点;主要盐类矿物均见有原生沉积和后期充填两种类型。通过对硝口岩盐矿床构造、矿层、矿物、微量元素和稀土元素进行分析研究,认为硝口岩盐矿床成因为"高山深盆"成盐模式,属于典型的陆相硫酸盐—氯化物盐湖沉积;巨厚岩盐矿层的形成一是原始沉积厚度大,二是受构造影响间接使矿层"加厚"。
The Xiaokou salt deposit is located in south central Liupanshan basin and characterized by small horizontal distribution and huge vertical thickness and great variation along strike or inclination.The main salt minerals are of primary sedimentation and later filling.By analysis of the structure,ore layer,minerals,trace elements and rare earth elements,the author thinks that the Xiaokou salt deposit is formed in high mountain deep basin model and belongs to the typical continent-faced sulfate-chloride sedimentation lake.The huge thickness is resulted from the original thick sediment and the structural thickening.
出处
《地质找矿论丛》
CAS
CSCD
2017年第4期544-550,共7页
Contributions to Geology and Mineral Resources Research
基金
国土资源部公益性行业科研专项项目(编号:201111006)资助
关键词
六盘山盆地
岩盐矿
地质特征
成矿模式
硝口地区
宁夏
Liupanshan basin
salt deposit
geological features
ore-forming model
Xiaokou area
Ningxia
作者简介
宋新华（1963-），男，博士，正高职高级工程师，主要从事地质矿产勘查开发与科研丁作。通信地址：宁夏回族自治区银川市西夏区北京西路215号，宁夏回族自治区地质局,邮政编码：750021。;通信作者：褚小东（1983-），男，硕士，高级工程师，从事地质矿产勘查工作。通信地址：宁夏银川市西夏区北京西路215号，宁夏地质矿产勘查院；邮政编码：750021。Email：cxd_0104@163．com
