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1 Contemporary Trends in Geoscience

1 2014

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Analysis of the resistivity imaging results conducted over karst voids in Klucze using Depth of Investigation Index

Krajewska O., Glazer M., Pierwoła J.

Contemporary Trends in Geoscience

2014

Vol. 3, iss. 1

14--23

Conducted by "Olkusz" Speleological Club exploratory works related to the Gieńkówka cave led only to its partial opening. There are indications stating that this cave has continuation beyond its currently available parts. In order to verify those assumptions resistivity imaging method has been used. During analysis of the resistivity models obtained from field measurements the synthetic model, simulating the intersection of the cave corridor, has been utilized. In order to assess the reliability of resistivity cross sections in terms of the presence of artifacts left by the inversion process Depth of Investigation (DOI) index has been applied. For preparing DOI maps two inversions on the same data set were carried out using different reference models. Then the results were compared to each other. High resistivity anomalies revealed on obtained models show strong correlation with actual caves known in this area. In addition, similar anomalies have been found in place of the predicted continuity in Gieńkówka cave, thus confirming the hypothesis made in this research. High DOI index values in the occurrence of caves pointing to the instability of the inversion process in those areas.