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Carbonates and Evaporites

, Volume 27, Issue 3–4, pp 321–329 | Cite as

An investigation for potential extensions of the Karaca Cavern using geophysical methods

  • Aysel Şeren
  • Ali Erden Babacan
  • Kenan Gelişli
  • Zeynep Öğretmen
  • Raif Kandemir
Original Article

Abstract

It is extremely important for regional tourism to determine the possible extensions of Karaca Cavern, one of the most important tourism destinations of the Gümüşhane province in Northeast Turkey. Cavities in karstic areas have been frequently revealed using geophysical surveys. This study tried to ascertain the spatial distribution and extension of the limestone cavern system using these techniques. In pursuit of this goal, ground-penetrating radar (GPR), electrical resistivity tomography and seismic tomography methods were performed close to the Karaca Cavern. Appropriate sites for geophysical measurement were selected within the investigation area. The GPR measurements were collected with 100 MHz centre frequency unshielded antennas on 15 profiles over the investigation area of 5,000 m2. Furthermore, both electrical resistivity and seismic tomography data were acquired along with one profile on the site. All data sets were processed and interpreted to visualize the cave as well as the shallow subsurface structure of the site. As a result, it was found that a variety of hyperbolic reflections of different depths and sizes on the radargrams as well as low velocity and high resistivity areas with respect host rock observed in the seismic and resistivity tomography sections may indicate possible extensions of the Karaca Cavern. It has been suggested that locations of anomalies pinpointed using these methods could be opened at the sites. If these places are drilled, the cavern may be enlarged and its importance may increase in terms of tourism.

Keywords

Karaca Cavern Geophysical surveys GPR ERT Seismic 

Notes

Acknowledgments

We are indebted to the Karadeniz Technical University Research Fund (No. 2006.112.007.3) and would like to address our thanks to our students due to their contribution on data acquisition. Many thanks Melek Demir for her invaluable contributions to correction of the English of this paper. We also thank the referees.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Aysel Şeren
    • 1
  • Ali Erden Babacan
    • 1
  • Kenan Gelişli
    • 1
  • Zeynep Öğretmen
    • 1
  • Raif Kandemir
    • 2
  1. 1.Geophysics DepartmentKaradeniz Technical UniversityTrabzonTurkey
  2. 2.Geology DepartmentRecep Tayyip Erdoğan UniversityFener/RizeTurkey

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