Application of electrical resistivity tomography for imaging seawater intrusion in a coastal aquifer

Niculescu, Bogdan Mihai; Andrei, Gina

doi:10.1007/s11600-020-00529-7

Artykuł - szczegóły

Tytuł artykułu

Application of electrical resistivity tomography for imaging seawater intrusion in a coastal aquifer

Autorzy

Niculescu Bogdan Mihai , Andrei Gina

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-020-00529-7

Warianty tytułu

Języki publikacji

Abstrakty

Following previous geoelectrical researches initiated in 2009 for the delineation and characterization of seawater intrusion in a freshwater aquifer of Sarmatian (late Middle Miocene) age, a subsurface imaging survey via 2-D electrical resistivity tomography (ERT) was conducted in 2019 on the outskirts of Vama Veche resort—Romanian Black Sea southern coast. The survey was organized in the framework of a feld camp sponsored by the Foundation of the Society of Exploration Geophysicists (SEG)–Tulsa, OK, USA, with participation of teams from the University of Bucharest—Department of Geophysics and the Geological Institute of Romania. A number of eight ERT profles with N–S, W–E, NNE–SSW, and WNW–ESE orientation and 155–315 m length were imaged with a SuperSting R8/IP instrument (Advanced Geosciences Inc.), using deployments of 32–64 electrodes at 5 m spacing, in Wenner, Schlumberger, and dipole–dipole array confgurations. The processing and interpretation of high-resolution ERT data indicated that the seawater intrusion, evidenced as very low resistivity (5–10 Ω m) anomalous zones starting at approximately 45–49 m depth, has advanced at least 500 m inland. The survey results also allowed the identifcation of a system of fractures or faults with an approximate NW–SE/WNW–ESE and, possibly, N–S orientation, that might have provided potential pathways for saline water intrusion.

Słowa kluczowe

Black Sea electrical resistivity tomography fault fracture freshwater aquifer saltwater contamination

Morze Czarne tomografia elektrooporowa wina pęknięcie słodkowodna warstwa wodonośna skażenie wody słonej

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2021

Tom

Vol. 69, no. 2

Strony

613--630

Opis fizyczny

Bibliogr. 48 poz.

Twórcy

autor

Niculescu Bogdan Mihai

bogdan.niculescu@g.unibuc.ro

Faculty of Geology and Geophysics, Department of Geophysics, University of Bucharest, 6 Traian Vuia Street, 020956 Bucharest, Romania

https://orcid.org/0000-0001-6895-9435

autor

Andrei Gina

Faculty of Geology and Geophysics, Department of Geophysics, University of Bucharest, 6 Traian Vuia Street, 020956 Bucharest, Romania

Bibliografia

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Typ dokumentu

Bibliografia

Identyfikator YADDA

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