Deciphering of karst geomorphology and sinkhole (doline) structures using multiple geophysical and geological methods (Trabzon, NE Türkiye)


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Alemdağ H., Koroglu F., Öğretmen Aydın Z., Şeren A., Babacan A. E., Fırat Ersoy A.

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, vol.83, no.7, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 83 Issue: 7
  • Publication Date: 2024
  • Doi Number: 10.1007/s10064-024-03779-7
  • Journal Name: BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, IBZ Online, Aerospace Database, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Communication Abstracts, Compendex, Environment Index, Geobase, INSPEC, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Karadeniz Technical University Affiliated: Yes

Abstract

To date, in T & uuml;rkiye only a limited number and volume of combined geophysical and geological studies about karst have been performed. In this study, karstification and geomorphological features were examined with geophysical and geological methods together and initial results were obtained for T & uuml;rkiye. Although the geology of the limestone forming the & Scedil;ahinkaya Member, which contains & Ccedil;ay & imath;rba & gbreve;& imath;, & Ccedil;alk & ouml;y, and & Ccedil;al Cave, near the D & uuml;zk & ouml;y district of Trabzon/T & uuml;rkiye province was studied by many researchers to date, there is no geophysical study to determine the internal structural features, groundwater, dolines, and karstic voids. The aim of this study was to identify karst formations and their structural extensions in & Scedil;ahinkaya Member with geophysical methods. Therefore, three different study locations with a total surface area of approximately 3.2 km2 were examined with electrical resistivity tomography, self-potential, seismic refraction tomography, multichannel analysis of surface waves, and ground penetrating radar. These geophysical applications in limestone helped to identify karst cavities, water-saturated zones and dolines. Finally, the order of priority and efficiency of the five applied geophysical methods was compared, and the stages of the applications were outlined. In addition, the origin of karstification in the area investigated in this study was supported by petrographic, petrophysical and rock mechanic data.