深度评估地下水地质化学和微生物社区结构的深层花岩水层:评估深层地质储存库的影响
Man Jae Kwon1, Baknoon Ham2, Jang-Soon Kwon3
1Department of Earth and Environmental Sciences, Korea University, Seoul 02841, South Korea.
Water research
|November 20, 2025
概括
深层花岩地下水的深度离散采样揭示了地质化学和微生物性质的显著差异. 这凸显了为准确的地下水管理和库存适用性评估而进行详细,深入的评估的关键需求.
科学领域:
- 地质化学 地质化学
- 环境微生物学 环境微生物学
- 水文地质学 水文地质学
背景情况:
- 在放射性核化物设施附近的岩层含水层中监测地下水对于水资源管理至关重要.
- 取决于深度的地化学和微生物特性影响地下条件.
- 现有的研究往往缺乏深度离散采样,限制了对这些变化的理解.
研究的目的:
- 为了评估深度离散的地质化学和微生物特征深层花岩地下水.
- 在地下研究道 (URT) 内和附近评估地下水.
- 了解深度对水质和微生物群落的影响.
主要方法:
- 从钻井 (DB1,DB3,JH) 中采集了25个地下水样本,使用各种深度 (0-500米) 的包装系统.
- 分析了主要和微量元素以及微生物社区组成,使用16S rRNA基因测序.
- 用包装系统和没有包装系统收集的样本进行比较,以确定深度依赖的变化.
主要成果:
- 随着深度的增加,地下水类型发生了转移 (Ca-HCO3到Na-HCO3).
- 氧化还原概况各不相同,表明通过改变的区域/断层流动的偏好.
- 与DB井相比,JH井显示出更高的溶解氧和微生物多样性.
- 深度离散采样显示化物和的度超过饮用水指南在特定的深度.
结论:
- 深度评估对于准确的地下水质量管理至关重要.
- 了解深度依赖的生物地质化学性质对于评估深地质储藏库的适用性至关重要.
- 水与岩石的相互作用,氧化还原条件和潜在的表面污染影响了地下水的特性.
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