| 强利刚,李强,宋宪生,惠争卜,于宏伟,李亚锋.老挝万象盆地钾盐矿床溴元素地球化学特征及矿床成因[J].矿产勘查,2019,(12):2995-3003 |
| 老挝万象盆地钾盐矿床溴元素地球化学特征及矿床成因 |
| Geochemical characteristics of Br and genesis of potassium salt deposit in Vientiane Basin, Laos |
| 投稿时间：2019-03-12 |
| DOI： |
| 中文关键词: 万象盆地 钾盐矿床 溴 矿床成因 老挝 |
| 英文关键词: Vientiane basin,potash deposit,Br,deposit genesis, Laos |
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| 中文摘要: |
| 老挝万象盆地钾镁盐矿主要富集在塔贡组中段及下段膏盐中,矿石主要由钾石盐、光卤石、溢晶石、石盐及少量水氯镁石组成。钾镁盐矿中的微量元素Br和氯化物有直接关系,是万象盆地内找钾的重要标志,其含量变化指示了原始盐溶液的浓缩和淡化过程。文章介绍了万象盆地钾盐矿床的地质矿产特征,总结了钾盐矿Br的地球化学特征,分析了万象钾盐矿床的成因,对丰富古代固体钾盐成矿理论及找钾工作具有参考意义。 |
| 英文摘要: |
| Potassium-magnesium salt deposits in the Vientiane Basin of Laos are mainly concentrated in gypsum salts of the middle and lower Tagong Formation. The ores are mainly composed of potassium salt, carnallite, spillite, stone salt and a small amount of brucite. The trace element Br in potassium-magnesium salt deposit is directly related to chloride, which is an important indicator of potassium prospecting in Vientiane basin. Its content changes indicate the process of concentration and desalination of original salt solution. This paper introduces the geological and mineral characteristics of the potassium salt deposit in Vientiane Basin. summarizes the geochemical characteristics of Br and analyses the genesis of the Vientiane potassium salt deposit. which is of great significance for enriching the ancient theory of solid potassium mineralization and guiding evaporite research and potassium prospecting in Vientiane Basin. |
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