| 左丽琼,王彩会,谌艳珍,季克其,戴建.江苏省岩溶型地热水化学特征及成因机理[J].矿产勘查,2025,16(12):2595-2605 |
| 江苏省岩溶型地热水化学特征及成因机理 |
| Chemical characteristics and genesis of karst geothermal water in Jiangsu Province |
| 投稿时间：2024-11-19 |
| DOI：10.20008/j.kckc.202512006 |
| 中文关键词: 岩溶型地热水 水化学特征 成因机理 氯碱指数 饱和指数 |
| 英文关键词: karst geothermal water water chemical characteristics genetic mechanism chlorine alkali index saturation index |
| 基金项目:本文受江苏省省级地质勘查项目(苏财资环〔2021〕46号文)资助。 |
|
| 摘要点击次数: 45 |
| 全文下载次数: 0 |
| 中文摘要: |
| 岩溶地热水是江苏省地热主要类型之一，水化学研究对加深岩溶型地热水成因机理的理解具有重要指示意义。本文通过分析全省 65个地热水样品，综合利用 Piper三线图、离子相关系数、氯碱指数、饱和指数等方法，深入研究水化学成分形成机理，系统总结水化学特征分布规律。结果表明:全省 80%以上岩溶型地热水 TDS大于 1g/L，水化学类型极其复杂，且受地质构造影响分布特征明显。水化学成分主要受控于溶滤(溶解)、阳离子(正逆)交换作用或两者混合作用的影响，其中混合作用明显；大多数岩溶型地热水形成过程中伴有正向阳离子交换，使得 Ca2+(Mg2+)增加；少数发生逆向阳离子交换，使得 Na++ K+增加。研究成果对全省乃至长三角地区岩溶型地热资源科学勘查开发和管理具有实际指导意义。 |
| 英文摘要: |
| Karst geothermal water is one of the important types of geothermal water in Jiangsu, and hydro.chemical research has important indicative significance for deepening the understanding of the genesis mechanismof karst geothermal water. The formation mechanism of hydrochemical components is studied systematically by ana-lyzing 65 geothermal water samples in the province, and comprehensively using methods such as Piper's three linechart, ion correlation coefficient, chlor alkali index, saturation index, etc. The results showed that over 80% of thekarst geothermal water in the province, TDS is greater than 1 g/L. The hydrochemical types are extremely complex.However, the distribution characteristics are obvious due to the influence of geological structures. The formationmechanism of the chemical composition of karst geothermal water in Jiangsu Province is mainly controlled by the ef-fects of lixivation (dissolution), cation (forward and reverse) exchange, or the mixing of the two. Among which themixing effect is obvious. During the formation of karst geothermal water, most of it is accompanied by forward cationexchange, the result is that the content of Ca2+ (Mg2+ ) increases. A small portion undergoes reverse cation exchange, the result is that the content of Na++K+ increases. The research results have practical guiding significance for thescientific exploration, development, and management of karst geothermal resources in the province and even theYangtze River Delta region. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|