摘要
研究了陕北定边县境内12个现代内陆盐湖的分布特点及其形成条件。查明了盐湖水化学类型为Cl!--SO_4~=-Na^+-Mg^(++)型,矿化度高。主要产出有6种盐类矿物,分析了它们析出的条件。在综合分析盐湖钻孔剖面沉积序列的基础上,总结出盐类沉积具有5个基本特征。上述问题的研究对今后定边县综合评价与合理开发利用盐湖盐类矿产资源提供了科学依据。
The paper mainly studies the distribution characteristics and formation environments of 12 present inland salt lakes in the Dingbian, North Shaanxi. It is found out that chemical type of the water of the salt lakes belongs to Cl^--SO_4~=-Na^+-Mg^(++), and the mineralization is high. The author has studied the depositional conditions of 6 salt minerals which present in the salt lakes. The paper explains 5 main characteristics of salt depo sition on the basis of synthetical studies of depositional sequence of the core section. The results of the above-mentioned study may provide a scientific basis for synthetical evaluation and making rational exploration and use of salt resources in this salt lake.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
1992年第4期457-463,共7页
Journal of Northwest University（Natural Science Edition）
关键词
内陆盐湖
盐类矿物
盐类沉积
Inland salt lake
Salt mineral
Salt deposition
Dingbian
North Shaanxi
