ELECTRICAL RESISTIVITY TOMOGRAPHY SURVEY IN AN ILLEGAL EXCAVATION SITE AT ISPARTA KILIÇ ÖREN

Abstract

An illegal excavation at Kılıç Öreniçi site revealed a monumental ruin that was thought to belong to Roman period architecture. To determine the continuity of these historical remains and other possible buried remains around the excavation, electrical resistivity tomography measurements were performed according to the Wenner-Schlumberger array in a total of twenty lines in two areas. The software used to evaluate the measured field data offers two different inversion methods. The ability of these two methods has been tested for common electrode arrays using synthetic archaeological models. The used archaeological models (block and horizontal cylinder) represent walls and columns corresponding to the remains of buried foundation. The modeling results provided contributions to the interpretation of the resistivity data measured from archaeology field.

Keywords

• Resistivity,Tomography,Modeling,Archaeology,Isparta

ISPARTA KILIÇ ÖREN MEVKİİNDE BİR KAÇAK KAZI ALANINDA ELEKTRİK ÖZDİRENÇ TOMOGRAFİ ARAŞTIRMASI

Abstract

Isparta Kılıç Ören mevkiinde kaçak kazı sonucu Roma dönemi mimarisine ait olduğu düşünülen gömülü anıtsal bir kalıntı ortaya çıkmıştır. Bu kalıntının sürekliliğini ve kazı etrafında gömülü olası kalıntıları belirlemek için iki bölgede toplam 20 profilde Wenner-Schlumberger dizilimine göre elektrik özdirenç tomografi ölçümleri gerçekleştirilmiştir. Ölçülen saha verilerini değerlendirmede kullanılan yazılım iki farklı ters çözüm yöntemi seçeneği sunmaktadır. Bu iki yöntemin yeterliliği yaygın elektrot dizilimleri için sentetik arkeolojik modeller kullanılarak test edilmiştir. Kullanılan arkeolojik modeller (blok ve yatay silindir), gömülü yapı kalıntılarına karşılık gelen duvarları ve sütunları temsil etmektedir. Sentetik model sonuçları, arkeoloji sahasından ölçülen özdirenç verilerin yorumlanmasına katkılar sağlamıştır.

Keywords

• Özdirenç,Tomografi,Modelleme,Arkeoloji,Isparta

References

1. Anudu, G.K., Essien, B.I, Obrike S..E., 2014. Hydrogeophysical investigation and estimation of groundwater potentials of the Lower Paleozoic to Precambrian crystalline basement rocks in Kefl area, north-central Nigeria, using resistivity methods. Arabian Journal of Geosciences, 7, 311-322.
2. Atekwana, E.A., Sauck, W.A., Werkema, D.D., 2000. Investigations of geoelectrical signatures at a hydrocarbon contaminated site. Journal of Applied Geophysics, 44, 167-180.
3. Bayrak, M., Senel, L., 2012. Two-dimensional resistivity imaging in the Kestelek boron area by VLF and DC resistivity methods, Arabian Journal of Geosciences, 82, 1-10.
4. Dahlin, T., Loke, M.H., 1998. Resolution of 2D Wenner resistivity imaging as assessed by numerical modelling. Journal of Applied Geophysics, 38, 237-249.
5. Dahlin, T., Zhou, B., 2004. A numerical comparison of 2D resistivity imaging with 10 electrode arrays. Geophysical Prospecting, 52, 379-398.
6. Griffiths, D.H., Barker, R.D., 1994. Electrical Imaging in Archaeology. Journal of Archaeological Science, 21, 153-158.
7. Henning, T., Weller, A., Canh, T., 2005. The effect of dike geometry on different resistivity configurations. Applied Geophysics, 57, 78-292.
8. Karavul, C., Karaaslan, H, Demirkol, A., 2016. Investigation of structures in the Alabanda Bouleuterion by electrical resistivity method. Arabian Journal of Geosciences, 9: 511.

9. Loke, M.H., Barker, R.D., 1996. Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-newton method. Geophysical Prospecting, 44, 131-152.
10. Nordiana, M.M., Rosli, S., Nawawi, M.N.M., 2014. A numerical comparison of enhancing horizontal resolution (EHR) technique utilizing 2D resistivity imaging. Arabian Journal of Geosciences, 7, 299-309.
11. Osella, A., de la Vega M., Lascano E., 2004. 3D electrical imaging of an archaeological site using electric and electromagnetic methods, Geophysics, 70, 101-107.
12. Özsait, M., 1980. İlk Çağ Tarihinde Pisidia, İstanbul, 16.
13. Özsait, M., 2011. Surveys in Burdur and Isparta in 2010. News of Archaeology from Anatolia’s Mediterranean Areas (ANMED), 9, 164-173.
14. Robert, L., 1948. Deux Texes İnulitises Sur Perge et Side, Hellenica, 5, 64-69.
15. Tsokas, G.N., Giannopoulos, A., Tsourlos, P., Vargemezis, G., Tealby J.M., Sarris A., Papazachos C.B., 1994. A large scale geophysical survey in the archaeological site of Europos (Northern Greece). Journal of Applied Geophysics, 32, 85-98.
16. Tsokas, G.N., Tsourlos, P.I., Vargemezis, G., Novack, M., 2008. Nondestructive Electrical Resistivity Tomography for Indoor Investigation: the Case of Kapnikarea Church in Athens. Archaeological Prospection, 15, 47-61.
17. Papadopoulos, N.G., Tsourlos, P., Tsokas, G.N., Sarris, A., 2007. Efficient ERT measuring and inversion strategies for 3D imaging of buried antiquities: Near Surface Geophysics, 6, 349-362.
18. Yilmaz, S., Narman, C., 2015. 2-D electrical resistivity imaging for investigating an active landslide along a ridgeway in Burdur region, southern Turkey. Arabian Journal of Geosciences, 8, 3343–3349.
19. Yilmaz, S., Koksoy, M., 2017. Electrical resistivity imaging and dye tracer test for the estimation of water leakage paths from reservoir of Akdeğirmen Dam in Afyonkarahisar, Turkey. Environmental Earth Sciences, 76: 829.