Özet:

The VLF and ERT methods are often used in the study of the distribution of conductivity in the first ten meters of the ground. The VLF method allows for quick and low-cost measurement, however, measurement in a small number and relatively narrow frequency range provides low depth resolution according to the ERT method. Therefore, the ERT method is usually one of the most commonly used methods in heylaneous environments where significant guidance contradictions are observed. VLF-EM and ERT measurements have been carried out on the parallel two lines on the Istanbul Hunters Hole to investigate how successful the 2B reverse solution results of the VLF data on the hole. VLF-R data has also been collected at the northeastern end of the VLF-EM line. The data collected is modeled and interpreted independently with 2B rotating reverse solution algorithms. According to the results, the conductors and the sliding level within the heyelane can be determined by the VLF method. According to this, the conductive quarters of the Gürpınar formation that forms the sliding flat is detected at 15-20m depth. The VLF-EM method is sensitive to horizontal conductivity changes, so the surface-covering conductive alivion VLF-EM data cannot be determined. In the northeastern part of the work area, the killer of the Gürpınar formation is determined by both the ERT and the VLF-EM method where the killer approaches the earth. The north-eastern end of the work area was unable to separate the alvium cover and ~3-10m depth of the conductive killer in the VLF-EM model. Nevertheless, as the VLF-R measurements were able to obtain a greater differentiation, these guidelines were able to successfully be separated.

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