1887

Abstract

Summary

Geophysical methods are useful to identify potential sea water intrusion near coastal areas. Therefore, Electrical / Electromagnetic surveys were mapped possible sea water intrusion effect along the Degirmendere River in Trabzon coastal site of Turkey. The study area, located along the Degirmendere River for Slingram method, was planned as 2 profiles which their lengths were 147 m and 82 m from north to south direction. The data were measured by using vertical-dipole mode (VDM) and horizontal-dipole mode (HDM) with EM-34-3 tool according to intervals of transmitter and receiver coils 10 m and 20 m along profiles. Electrical measurements were done the same study area as an one profile,160m, where is far away 200 m from sea with Wenner-Schlumberger, Wenner and Dipole-Dipole arrays by ABEM Terrameter LS tool. Interval of electrodes were chosen 4 m. After the electrical resistivity inversion, the matched result with Slingram method was revealed by Wenner-Schlumberger array. Moreover, the general structure of the subsurface and sea water intrusion have been revelaed by Slingram and Sounding-Profiling methods.The two potential areas of sea water intrusion, with depths of 10 m and 29 m, were estimated along the 2D resistivity profile and the results of the Slingram method.

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/content/papers/10.3997/2214-4609.201802558
2018-09-09
2024-03-29
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References

  1. Babacan, A.E., Sahin, A.B. and Cinar, U.
    [2016] The Investigation of Seawater Intrusions with Electric and Electromagnetic Methods - A Case Study from Eastern Black Sea. Near Surface Geoscience 2016 - 22nd European Meeting of Environmental and Engineering Geophysics, DOI: 10.3997/2214‑4609.201602058.
    https://doi.org/10.3997/2214-4609.201602058 [Google Scholar]
  2. Baykan, İ.
    [2011] Trabzon ili kırmızı killerinin jeoteknik özelliklerinin araştırılması. Yüksek Lisans Tezi, Karadeniz Teknik Üniversitesi, Fen Bilimleri Enstitüsü, Trabzon (In Turkish).
    [Google Scholar]
  3. Bektas, O., Yiılmaz, C., Taslı, K., Akdağ, K. and Özgür, S.
    [1995] Cretaceous rifting of the eastern pontides carbonate platform (NE Turkey): the formation of the carbonate breccias and turbidites as evidence of a drowned platform. Giornale di Geologia, 57, 233–244.
    [Google Scholar]
  4. Chachadi, A.G. and Ferreira, J.P.L.
    [2005] Assessing aquifer vulnerability to sea-water intrusion using GALDIT method: Part 2- GALDIT indicators description. The 4th Inter-Celtic Colloquium on Hydrology and Management of Water resources, Portugal.
    [Google Scholar]
  5. Coban, K.H., Babacan, A.E., Durmaz, E. and Ceylan, S.
    [2017] The Use of Slingram Method to Map the Marine Water Intrusion: A Case Study from the Trabzon, Turkey. Near Surface Geoscience 2017 – 23rd European Meeting of Environmental and Engineering Geophysics.
    [Google Scholar]
  6. Güven, İ.H.
    [1993] Doğu Pontidlerin Jeolojisi ve 1/250.000 ölçekli kompilasyonu. MTA Yayınları, Ankara, Türkiye (In Turkish).
    [Google Scholar]
  7. Henderson, R.D., Frederick, D. D., Elena, A., Charles, F. H., Hanan, N., LanboL., JohnW. L.
    [2010] Marine electrical resistivity imaging of submarine groundwater discharge: sensitivity analysis and application in Waquoit Bay, Massachusetts, USA, Hydrogeology Journal (2010)18: 173–185.
    [Google Scholar]
  8. Himi, M., Stitou, J., Rivero, L., Salhi, A., Tapias, J.C. and Casas, A.
    [2010] Geophysical surveys for delineating salt water intrusion and fresh water resources in the Oued Laou coastal aquifer. 24th European Meeting of Environmental and Engineering Geophysics, Switzerland.
    [Google Scholar]
  9. J.Martinez A., J.Benavente B., J.L.García-Aróstegui C., M.C.Hidalgo D. and J.Rey D.
    [2009] Contribution of electrical resistivity tomography to the study of detrital aquifers affected by seawater intrusion-extrusion effects: The river Vélez delta (Vélez-Málaga, southern Spain), Engineering Geology, 108, 161–168.
    [Google Scholar]
  10. Loke, M.H., Acworth, I. and Dahlin, T.
    , [2003] A comparison of smooth and blocky inversion methods in 2D electrical imaging surveys. Exploration Geophysics, 34, 182–187.
    [Google Scholar]
  11. McNeill, J. P.
    [1980] Electromagnetic terrain conductivity measurements at low induction numbers: Geonics Ltd., Mississauga, Ontario, Canada, Technical Note TN-6, p. 1–15.
    [Google Scholar]
  12. Nguyen, F., Kemna, A., Antonsson, A., Engesgaard, P., Kuras, O., Ogilvy, R., Gisbert, J., Jorreto, S. and Pulido-Bosch, A.
    [2009] Characterization of seawater intrusion using 2D electrical imaging. Near Surface Geophysics, 7, 377–390.
    [Google Scholar]
  13. Obikoya, I.B. and Bennell, J.D.
    [2012] Geophysical Investigation of the Fresh-Saline Water Interface in the Coastal Area of Abergwyngregyn, Journal of Environmental Protection, 3, 1039–1046.
    [Google Scholar]
  14. Paine, J.G.
    [2003] Determining salinization extent, identifying salinity sources, and estimating chloride mass using surface, borehole, and airborne electromagnetic induction methods, Water Resources Research, 39, 3, 1059.
    [Google Scholar]
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