Surveys in Geophysics ( IF 4.9 ) Pub Date : 2024-12-19 , DOI: 10.1007/s10712-024-09870-8 Lubomil Pospíšil, Dalibor Bartoněk, Jiri Bures, Otakar Svabensky
Previous surveys using the remote sensing (RS) method revealed significant structures in the area of the Western Carpathians. It has not yet been possible to verify and explain the results of these surveys, even though all the phenomena are regional in nature and show many morphological features that clearly indicate recent activity and deformations, including current earthquake foci. The aim of the article was to verify these phenomena and compare them with new findings. A method of combining geomorphological data with satellite image analysis and verification using Global Navigation Satellite Systems (GNSS) and geophysics data was used. In this work, results are presented confirming the existence of a previously identified nonlinear structure—the "gravity nappe" in the western part of the Low Tatras, and the largest tectonic system Muráň—Malcov is analyzed in detail. Similar structures and tectonic zones, on a smaller scale, can also be found in other areas of the Carpathians. For example, the gravity structure in the Lesser Carpathians and the Ukrainian flysch Carpathians or the linear boundaries interpreted as tectonic systems—the Myjava-Subtatrans, Hron and Transgemerian tectonic zones. Recent movement trends have been confirmed by newly unified data from EUREF Permanent Network (EPN) stations and GNSS campaigns carried out in the last two decades in the given area. Both types of analyzed structures are directly related to the occurring foci of earthquakes.
中文翻译:
利用遥感、地球物理和 GNSS 数据识别和验证西喀尔巴阡山脉的地球动力学风险带
之前使用遥感 (RS) 方法的调查揭示了西喀尔巴阡山脉地区的重要结构。目前还无法验证和解释这些调查的结果,尽管所有现象本质上都是区域性的,并且显示出许多形态特征,清楚地表明了最近的活动和变形,包括当前的地震震源。本文的目的是验证这些现象并将其与新发现进行比较。使用了一种将地貌数据与使用全球导航卫星系统 (GNSS) 和地球物理数据进行卫星图像分析和验证相结合的方法。在这项工作中,提出的结果证实了先前确定的非线性结构的存在——低塔特拉山西部的“重力枕”,并详细分析了最大的构造系统 Muráň——Malcov。类似的结构和构造带,但规模较小,也可以在喀尔巴阡山脉的其他地区找到。例如,小喀尔巴阡山脉和乌克兰飞施喀尔巴阡山脉的重力结构或被解释为构造系统的线性边界——Myjava-Subtatrans、Hron 和 Transgemerian 构造带。来自 EUREF 永久网络 (EPN) 站的新统一数据和过去二十年在给定区域开展的 GNSS 活动证实了最近的移动趋势。这两种类型的分析结构都与发生的地震焦点直接相关。