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大峡谷深层岩层中洞穴的三维特征

Blase LaSala¹, Temuulen Tsagaan Sankey², Mark Nebel³

¹School of Informatics, Computing and Cyber Systems, Northern Arizona University, 1295 Knoles Dr, Flagstaff, AZ, 86011, USA. bl778@nau.edu.

Scientific reports

|August 30, 2025

概括

移动激光雷达绘制地图揭示了地下水如何通过大峡谷国家公园的复杂的岩层流动. 这种新方法可以识别导向水的地质结构,

科学领域:

地质学
水文学
地形学

背景情况:

由于复杂,难以进入的管道和断层网络,很难研究岩石层中的地下水流.
大峡谷国家公园的传统染料追踪方法对于大规模的流动路径推断的范围有限.
大峡谷的泉源对生态系统和公园运营至关重要,

研究的目的:

引入和验证基于移动激光雷达的方法,用于描述地下水流量定义结构.
为了有效地收集高分辨率3D数据从远程洞穴系统在大峡谷国家公园.
为了确定地下水流通路径的地质控制在北边的岩水层.

主要方法:

一个移动的激光雷达系统被部署在活跃的洞穴中收集厘米级的3D数据.
在大峡谷北边的Redwall和Muav石灰岩中收集了超过10公里的数据.
通过将其与传统的洞穴地图进行比较来评估激光雷达方法的准确性,其复合误差低于0.5%.

主要成果:

激光雷达的方法成功地解决了地下水流量定义的结构.
地质结构,如联合集和床, 发现在几公里长的洞穴通道中是一致的.
这些一致的结构表明地下水流是由区域地质特征控制的.

结论:

大峡谷国家公园北边的地下水流利用了区域断层和升降的影响.
移动激光雷达的结构特征为识别岩网络流动模式提供了关键数据.
这种先进的方法提供了以前无法通过传统方法获得的地下水动态洞察力.

关键词:

洞穴调查地理信息学水文地质学利达尔遥感技术洞穴学

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