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Open AccessArticle

Advances in the Coastal and Submarine Groundwater Processes: Controls and Environmental Impact on the Thriassion Plain and Eleusis Gulf (Attica, Greece)

1
Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, 11855 Athens, Greece
2
Faculty of Geology & Geoenvironment, Department of Historical Geology-Paleontology, School of Earth Sciences, National & Kapodistrian University of Athens, Zografou University Hill, 15774 Athens, Greece
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2020, 8(11), 944; https://doi.org/10.3390/jmse8110944
Received: 30 September 2020 / Revised: 3 November 2020 / Accepted: 16 November 2020 / Published: 20 November 2020
(This article belongs to the Special Issue Climate Change and Marine Geological Dynamics)
This study focuses on the hydrogeological conditions in the coastal (Thriassion plain) and submarine (Eleusis Gulf) environment of West Attica, Greece. Up to now, the predominant aspect for the Thriassion plain groundwater—hosted within the Neogene-Quaternary sediments—was its direct hydraulic contact with the seawater. Due to that, the coastal plain groundwater is strongly believed to be of brackish quality irrespective of the local hydrodynamic conditions. Our major goal is to evaluate the actual mechanism controlling the groundwater flow, the origin and distribution of saline water, and the existence of fresh groundwater in the submarine environment. We summarize the following: (1) groundwater of the Thriassion plain is partly discharged as an upwards leakage from deeper aquifers, (2) modern direct seawater intrusion is not possible in the Neogene-Quaternary sediments, and (3) fresh groundwater possibly exists below the sea floor of the Eleusis Gulf. The results may serve as hint of further research in groundwater resources below the Mediterranean Sea floor, and, consequently, a new perspective on water resource management could emerge. View Full-Text
Keywords: offshore groundwater exploration; coastal aquifers; salt-/fresh-water relationship; Mediterranean Sea; Attica-Greece offshore groundwater exploration; coastal aquifers; salt-/fresh-water relationship; Mediterranean Sea; Attica-Greece
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MDPI and ACS Style

Hermides, D.; Makri, P.; Kontakiotis, G.; Antonarakou, A. Advances in the Coastal and Submarine Groundwater Processes: Controls and Environmental Impact on the Thriassion Plain and Eleusis Gulf (Attica, Greece). J. Mar. Sci. Eng. 2020, 8, 944.

AMA Style

Hermides D, Makri P, Kontakiotis G, Antonarakou A. Advances in the Coastal and Submarine Groundwater Processes: Controls and Environmental Impact on the Thriassion Plain and Eleusis Gulf (Attica, Greece). Journal of Marine Science and Engineering. 2020; 8(11):944.

Chicago/Turabian Style

Hermides, Demetrios; Makri, Panayota; Kontakiotis, George; Antonarakou, Assimina. 2020. "Advances in the Coastal and Submarine Groundwater Processes: Controls and Environmental Impact on the Thriassion Plain and Eleusis Gulf (Attica, Greece)" J. Mar. Sci. Eng. 8, no. 11: 944.

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