1887

Abstract

Summary

The gravity method has been applied, with a total of 1.122 gravity measurements for the subsurface investigation of the geotectonic structure beneath the urban and sub-urban areas of Athens basin. The aim was to gather new information for the subsurface geological and tectonic structure of Athens basin and re-assess the seismic hazard risk of the area that may damage its infrastructures. The standard corrections have been applied (drift, tide, latitude, free-air, Bouguer, terrain ones) along with an additional Building Correction that has been calculated based on the urban characteristics. Afterwards, the isolation of the residual anomaly has been accomplished with the contribution of the Fourier filters and the analysis of the power energy spectrum. The processing results provided important data regarding the geological and tectonic structure beneath the Quaternary formations that cover the basin. We managed to verify already proposed concealed fault zones or even discover and propose new ones that may affect the city in the future by generating disastrous earthquakes. In the context of the interpretation, two geophysical-geological profiles have been constructed, along which the geotectonic regime of the subsurface is clarified.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201902472
2019-09-08
2020-04-09
Loading full text...

Full text loading...

References

  1. Dilalos, S.
    [2018] Application of geophysical technique to the investigation of tectonic structures in urban and suburban environments. A case study in Athens basin. Ph.D. Thesis, National and Kapodistrian University of Athens, 321p. Athens, Greece.
    [Google Scholar]
  2. Dilalos, S. and Alexopoulos, J.D.
    [2017] Indications of correlation between gravity measurements and isoseismal maps. A case study of Athens basin (Greece). Journal of Applied Geophysics, 140, 62–74. https://doi.org/10.1016/iJappgeo.2017.03.012
    [Google Scholar]
  3. Dilalos, S., Alexopoulos, J.D., Tsatsaris, A.
    [2018] Calculation of Building Correction for urban gravity surveys. A case study of Athens metropolis (Greece). Journal of Applied Geophysics. 159(C), 540–552. https://doi.org/10.1016/j.jappgeo.2018.09.036
    [Google Scholar]
  4. Grasemann, B., Schneider, D., Stöckli, D., Iglseder, C.
    [2012] Miocene bivergent crustal extension: evidence from the western Cyclades (Greece). Lithosphere. Doi: 10:1130/L164.1
    https://doi.org/10:1130/L164.1 [Google Scholar]
  5. Iglseder, C., Grasemann, B., Rice, A.H.N., Petrakakis, K., Schneider, D.A.
    [2011] Miocene south directed low-angle normal fault evolution on Kea Island (West Cycladic Detachment System, Greece).Tectonics, 30(4), TC4013, 1–31. https://doi.org/10.1029/2010TC002802
    [Google Scholar]
  6. Lekkas, S., Skourtsos, E., Soukis, K., Kranis, H., Lozios, S., Alexopoulos, A., Koutsovitis, P.
    [2011] Late Miocene detachment faulting and crustal extension in SE Attica (Greece). Geophysical Research Abstracts, 13, EGU 2011–13016.
    [Google Scholar]
  7. Papanikolaou, D., Lozios, S., Sideris, C., Kranis, H., Danamos, G., Soukis, K., Skourtsos, E., Bassi, E., Marinos, P., Tsiampaos, G., Boukovalas, G., Sabatakakis, N., Antoniou, A., Provia, K.
    [2002] Geological - Geotechnical study of Athens basin. OASP Applied research program, 152p., Athens (In Greek).
    [Google Scholar]
  8. Xypolias, P., Kokkalas, S., Skourlis, K.
    [2003] Upward extrusion and subsequent transpression as a possible mechanism for the exhumation of HP/LT rocks in Evia Island (Aegean Sea, Greece). Journal of Geodynamics, 35(3), 303–332. https://doi.org/10.1016/S0264-3707(02)00131-X
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201902472
Loading
/content/papers/10.3997/2214-4609.201902472
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error