| 四川自贡地区地下卤水锂矿化特征及靶区预测 |
| |
| 作者姓名： | 詹涵钰 马红熳 武文辉 秦宇龙 吴和 易胜利 |
| |
| 作者单位： | 1. 稀有稀土战略资源评价与利用四川省重点实验室,成都 610081;2.四川省地质调查院,成都 610081;3.四川盐业地质钻井大队,自贡 643000;4.四川久大盐业集团低压天然气分公司,自贡 643000 |
| |
| 基金项目： | 中国地质调查局“川西锂矿大型能源基地成矿关键技术研究与示范(编号: 2018SZ0276)”和“四川富顺富钾锂卤水选区地质调查专题(编号: DD20160129-02)”共同资助 |
| |
| 摘 要： | 锂作为一种新能源、新材料,对国民经济建设及国防安全保障具有重要的战略意义。卤水中液体锂为锂资源的主要来源之一。四川盆地自贡地区地下卤水资源丰富,但开发利用方式较为单一。前人对自流井背斜卤水中的锂资源研究较少,但已有数据均表明局部卤水中Li+含量达单独开采工业品位的2~4倍,具有较高的开采价值。近年来,对自贡地区的地下卤水资源分布情况进行了调查,对有利地区采集的样品进行了分析,结果表明: 锂资源已达边界品位的3~4倍、最低工业品位的2倍以上; Li+与Na+、K+、$NH^{+}_{4}$、Cl-含量呈明显的正相关,卤水中Na+、K+、$NH^{+}_{4}$、Cl-的含量可作为Li+含量的间接指示; 降低卤水中Mg/Li值能够有效控制提锂成本; 相比于黄卤,黑卤有较低的Mg2+和较高的Li+、Na+、K+、$NH^{+}_{4}$及Cl-。通过综合分析认为,邓井关背斜的轴部黑卤密集分布地区可作为锂资源的找矿靶区。
|
| 关 键 词： | 地下卤水 锂矿 元素相关性 间接指示 靶区预测 |
| 收稿时间： | 2018-01-29 |
Mineralization charateristics and target area prediction of underground brine lithium mine in Zigong Area,Sichuan Province |
| |
| Authors: | ZHAN Hanyu MA Hongman WU Wenhui QIN Yulong WU He YI Shengli |
| |
| Institution: | 1. Key Laboratory of the Evaluation and Utilization of Strategic Rare Metals and Rare Earth Resources of Sichuan Province, Chengdu 610081, China;2. Sichuan Institute of Geological Survey, Chengdu 610081, China;3. Sichuan Salt Geological Drilling Team, Zigong 643000, China;4. Low Pressure Gas Branch, Sichuan Jiuda Salt Company, Zigong 643000, China |
| |
| Abstract: | Lithium as a new energy and material has important strategic significance for national economic construction and defense security. The liquid lithium in brine is the main source of lithium resource. The underground brine resource is abundant in Zigong Area of Sichuan Basin, but the way of exploitation and utilization is onefold. Although there are few researches about the brine lithium resource of Ziliujing anticline, the existing data reveal that the Li+ content of local brine is 2 to 4 times of the mining industrial grade, which has great exploitation value. In recent years, the authors have investigated the distribution of underground brine resources in Zigong Area and analyzed the samples that were collected in favorable areas. The results show that the grade of lithium resource is 3 to 4 times higher than the boundary grade and 2 times higher than the lowest industrial grade. The Li+ content has obvious positive correlation with the contents of Na+, K+, $NH^{+}_{4}$ and Cl-. Therefore, the contents of Na+, K+, $NH^{+}_{4}$, Cl- in brine can be used as an indirect indication of Li+ content. Decreasing the Mg/Li of brine can effectively control the cost of lithium extraction. Compared with the yellow brine, the black brine has lower Mg2+ content and higher contents of Li+, Na+, K+, $NH^{+}_{4}$ and Cl-. Through comprehensive analysis, the authors considered that the axis of Dengjingguan anticline, where the black brine is densely distributed, could serve as a target area for lithium resource exploration. |
| |
| Keywords: | underground brine lithium mine elements correlation indirect indication target area prediction |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
