2-D electrical resistivity imaging for investigating an active landslide along a ridgeway in Burdur region, southern Turkey
- 246 Downloads
Two-dimensional (2-D) electrical resistivity imaging (ERI) technique has been used to characterize a landslide which occurred in a ridgeway between Burdur and Isparta in southern Turkey. The problems related to this road showed an increase due to road constructions and heavy rainfall. Primary attention was drawn to the determination of the thickness of the mobilized material, its possible sliding surface, and evaluation of the groundwater conditions related to the occurrence of the landslide. The eight survey profiles in the landslide area were implemented. Electrical resistivity survey has been carried out by the Wenner–Schlumberger array for data acquisition and smoothness-constrained least-squares method for data inversion. The self-potential (SP) survey data are presented as one-dimensional profile for each of the lines. ERIs pointed out a great heterogeneity of the near surface or mobilizing material and presence of impermeable material that could be associated to lateral and vertical limits of permeability. SP anomalies displayed that the positive values were located in water discharge on the surface whereas negatives in the sites of infiltration. The sliding surface is at a depth of about 10 m.
KeywordsResistivity Self-potential Landslide Wenner–Schlumberger
Financial support by the Süleyman Demirel University Research Fund is gratefully acknowledged. The authors would like to thank to the anonymous reviewers for their constructive comments which have helped to improve this manuscript.
- Atayeter Y (2004) Landslides on the ridgeway between Gelincik (Isparta)-Askeriye (Burdur) villages. Burdur J Educ Fac 8:17–31Google Scholar
- Chambers JE, Wilkinson PB, Kuras O, Ford JR, Gunn DA, Meldrum PI, Pennington CVL, Weller AL, Hobbs PRN, Ogilvy RD (2011) Three-dimensional geophysical anatomy of an active landslide in Lias Group mudrocks, Cleveland Basin, UK. Geomorphology 125:472–484. doi: 10.1016/j.jappgeo.2012.05.001 CrossRefGoogle Scholar
- Loke MH (2013) Tutorial: 2-D and 3-D electrical imaging surveys. http://www.geotomosoft.com. Accessed 24 June 2013