Investigation of structure of various surface karst formations in limestone and dolomite bedrock with application of the Electrical resistivity imaging

Abstract

Karst landforms are developed in different kind of rocks and in different structural settings. Authors are presenting some results of profile measurement of Electrical resistivity imaging in some dolines and collapse dolines that developed in limestone and dolomite in Slovenia. Selected features are examples of surface karst landforms which could be morphologically defined as typical of its kind. For electrical resistivity imaging data collection was used SuperSting RI/IP earth resistivity meter. Electrical resistivity imaging method was applied for research of material characteristics beneath surface of karst landforms. Materials with higher portion of water as fractured bedrock or clay are less resistant to electrical current than unfractured bedrock. Application of the ERI method has turned out as appropriate for detailed investigation of surface karst landforms.