印度斯河流域 (IRB) 地热系统中的流体和热流的起源和演变,印度
Gh Jeelani1, Suhail A Lone2, R D Deshpande3
1Department of Earth Sciences, University of Kashmir, Srinagar, 190006, India. geojeelani@gmail.com.
Scientific reports
|December 13, 2025
概括
印度河流域的地热系统是由地的岩活动推动的,而不是地幔来源. 这项研究揭示了局部热源和流体迁移通路,这些通路对于了解该地区的地热潜力至关重要.
科学领域:
- 地质化学 地质化学
- 地质地质地质地质地质地
- 地质物理学 地质物理学
- 构造学 构造学 构造学 构造学
- 水热系统 水热系统
背景情况:
- 喜马拉雅-西藏土壤形成是由印度-欧亚板块的汇聚引起的,导致地的加厚,变形和岩.
- 深层断层和剪切区促进流体循环和热传输,形成热水系统.
- 印度河流域的地热流体和热流的起源仍然存在争议,西藏系统通常与地幔来源联系在一起.
研究的目的:
- 研究印度河流域地热系统中的热流和流体循环.
- 确定有助于这些系统的溶解物,挥发物和热的来源.
- 为了限制该地区的构造和地热演变.
主要方法:
- 地化学,地质和地物理数据的整合.
- 在泉水中分析主要离子,微量元素和稀有金属.
- 和碳的同位素分析.
- 预估水库温度和循环深度.
- 解释地质物理证据,如重力异常和电阻区域.
主要成果:
- 普加 - 丘马坦格泉源中特定元素的高度表明,来自结晶的岩的流体贡献.
- 地中的和碳同位素表明了岩的影响,特别是在印度河线区 (ISZ) 附近.
- 估计的水库温度 (205-290°C) 和循环深度 (~4000m) 指向一个局部的热源.
- 地质数据显示,在ISZ下方的地中部部分存在融物质,与高热流和流体迁移有关.
结论:
- 部分融化,由解压和降低立体压力驱动,增强了印度河流域的地热活动.
- 地过程在维持喜马拉雅-西藏矿产带的高温热水系统中发挥着关键作用.
- 结果提供了对地热资源评估和该地区可持续能源发展的见解.
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