拉多夫纳河泉地区(斯洛文尼亚西北部朱利安阿尔卑斯山)的地球物理调查

Q3 Earth and Planetary Sciences Geologija Pub Date : 2021-12-28 DOI:10.5474/geologija.2021.014
A. Torkar, M. Zajc, J. Atanackov, A. Gosar, M. Brenčič
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引用次数: 0

摘要

拉多夫纳河谷位于斯洛文尼亚西北部的朱利安阿尔卑斯山脉,那里有一个广泛的粒间含水层,其深度到前第四纪基岩尚不清楚。因此,为了获得河谷深度和含水层的几何信息,我们采用了两种地球物理方法;探地雷达(GPR)和地震反射法。低频探地雷达方法可用于确定地下水深度和主要地下水补给。此外,高分辨率地震方法提供了对地表以下141米的前第四纪基底形态的深入了解。在研究区进行了地下水位、河流流量等水文地质参数的测量。两项数据分析都表明,地下水位和河流流量波动剧烈,变化迅速,表明含水层渗透性良好,这意味着这种含水层对极端气候事件极为敏感和脆弱。地球物理方法和水文地质信息都提供了有关河谷和冲积含水层形态的重要信息,增加了对拉多夫纳泉系统的认识,这将为今后的水文地质研究提供非常重要的信息。
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Geophysical investigations in the Radovna River Spring area (Julian Alps, NW Slovenia)
The Radovna River Valley is located in the north-western part of Slovenia in the Julian Alps, where there is an extensive intergranular aquifer whose depth to pre-Quaternary bedrock is unknown. Therefore, to obtain information about the depth of the valley and the geometry of the aquifer two geophysical methods were used in our study; ground penetrating radar (GPR) and seismic reflection method. The low-frequency GPR method has shown to be useful for determining the depth of the groundwater and the predominant groundwater recharge. Also, the high-resolution seismic method provided an insight about the morphology of the pre-Quaternary basement with the deepest point at 141 meters below surface. Measurements of hydrogeological parameters such as groundwater level and river discharge measurements were carried out in the study area. Both data analyses showed that groundwater level and river discharge are highly fluctuating and rapidly changing, indicating a well-permeable aquifer, implying that such an aquifer is extremely sensitive and vulnerable to extreme climate events. Both the geophysical methods and the hydrogeological information have provided important information about the morphology of the valley and the alluvial aquifer, as well as increasing the knowledge about the Radovna springs system, which will contribute very important information for future hydrogeological studies.
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来源期刊
Geologija
Geologija Earth and Planetary Sciences-Geophysics
CiteScore
1.00
自引率
0.00%
发文量
10
审稿时长
10 weeks
期刊最新文献
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