Evidence of palaeoenvironmental and climatic changes from the interpreted radar wave pictures of near surface sediments around the River Nile, Assiut, Egypt

IF 2.2 3区 地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY Journal of Applied Geophysics Pub Date : 2024-10-05 DOI:10.1016/j.jappgeo.2024.105533
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Abstract

Different palaeoenvironmental features that pose natural geological, environmental, and engineering hazards to human operations occur frequently around the Nile Valley. Moreover, where these features were initially created, their relevance focuses on how the urban communities responded to the processes. So, a ground penetrating radar (GPR) field survey was carried out on different paleoenvironments of Pre-Quaternary and Quaternary sediment around Assiut. Deep and critical analyses of georadar facies were made to obtain clear images of these features with unprecedented resolution. The main objective of this study is to find some reasonable geological interpretations for these features. From this study, it is possible to identify and differentiate these features originating from different geological environments and climatological conditions in arid regions such as those around Assiut. In addition, the study serves as guidelines for environmental management and climatic changes for enhancing knowledge of urban development. Also, the study demonstrates how georadar can be used to create precise images of intricate shallow subsurface anatomy with possible palaeoenvironmental and palaeoclimatic indicators.
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从埃及阿苏特尼罗河附近近地表沉积物的雷达波图片解释中获得古环境和气候变化的证据
尼罗河谷周围经常出现不同的古环境特征,对人类活动造成自然地理、环境和工程方面的危害。此外,在这些地貌最初形成的地方,其相关性侧重于城市社区如何应对这些过程。因此,对阿苏特周围不同的前第四纪和第四纪沉积物古环境进行了地面穿透雷达(GPR)实地勘测。为了以前所未有的分辨率获得这些特征的清晰图像,对地质雷达面进行了深入和严格的分析。这项研究的主要目的是为这些特征找到一些合理的地质解释。通过这项研究,有可能识别和区分这些源自不同地质环境和气候条件的地貌,如阿苏 特周边干旱地区的地貌。此外,这项研究还可作为环境管理和气候变化的指导方针,以增进对城市发展的了解。此外,该研究还展示了如何利用测地雷达为错综复杂的浅层地下解剖结构绘制精确图像,并提供可能的古环境和古气候指标。
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来源期刊
Journal of Applied Geophysics
Journal of Applied Geophysics 地学-地球科学综合
CiteScore
3.60
自引率
10.00%
发文量
274
审稿时长
4 months
期刊介绍: The Journal of Applied Geophysics with its key objective of responding to pertinent and timely needs, places particular emphasis on methodological developments and innovative applications of geophysical techniques for addressing environmental, engineering, and hydrological problems. Related topical research in exploration geophysics and in soil and rock physics is also covered by the Journal of Applied Geophysics.
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