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Coastal aquifer assessment using geophysical methods (TEM, VES), case study: Northern Crete, Greece

机译:使用地球物理方法(TEM,VES),案例研究:北部克里特岛,希腊沿海含水层评估

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The Geropotamos aquifer on the north-central coast of Crete, Greece, is invaded in some places by salt water from the Aegean Sea, with impact on freshwater supplies for domestic and business uses, including agriculture. Investigation of the aquifer using electromagnetic (TEM) and electrical resistivity (VES) measurement techniques has resulted in 1D models and 2D imaging of geoelectric structure, depicting the zones of salination of groundwater in the aquifer. Comparisons with geological map and field-based observations, indicates that saline intrusion is likely to occur along fractures in a fault zone through otherwise low-permeability phyllite-quartzite bedrock, and emphasizes the critical role of fracture pathways in salination problems of coastal aquifers.
机译:希腊克里特岛北部中央海岸的Geropotamos含水层在Aegean海上盐水入侵了一些地方,对国内和商业用途的淡水供应产生影响,包括农业。使用电磁(TEM)和电阻率(VES)测量技术对含水层的研究导致了电气结构的1D模型和2D成像,描绘了含水层中地下水的盐水区。与地质图和基于田间的观察结果的比较表明,盐水侵入可能沿着故障区的裂缝通过否则的低渗透性植物 - 石英岩基岩,并强调裂缝途径在沿海含水层的盐水问题中的关键作用。

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