Characterization of volcanic materials using ground penetrating radar: A case study at Teide volcano (Canary Islands, Spain)

Transverse architecture of lahar terraces, inferred from radargrams: preliminary results from Semeru Volcano, Indonesia

“…Investigations on volcanoes started a few years later, mainly with calibrations against outcrops (Russell and Stasiuk, 1997;Gomez-Ortiz et al, 2007) in order to determine the usability of GPR on volcanic terrain. Gomez-Ortiz et al (2006) also coupled GPR with another geophysical method -electric resistivity imagery -in order to improve and complete retrieved datasets. GPR data remains associated with some uncertainty (Figure 1).…”

Block-and-ash flow deposition: A conceptual model from a GPR survey on pyroclastic-flow deposits at Merapi Volcano, Indonesia

“…GPR exploration also developed on volcanic terrains. The method is usually calibrated against outcrops (Russell and Stasiuk, 1997;Gomez-Ortiz et al, 2007) or against other geophysical methods, like ERI -Electric Resistivity Imagery (Gomez-Ortiz et al, 2006). Investigated materials include lava, airfall pumice, channeled and non-channeled pyroclastic flow deposits (Russell and Stasiuk, 1997;Gomez-Ortiz et al, 2007;Gomez et al, 2008), and mud volcanoes (Chow et al, 2006).…”

Joint application of ground penetrating radar and electrical resistivity imaging to investigate volcanic materials and structures in Tenerife (Canary Islands, Spain)

“…1). Ground penetrating radar (GPR) has proved to be a useful geophysical tool to characterize the physical properties, thickness, spatial distribution, internal structures and discontinuities of subsurface materials (Russell and Stasiuk, 1997;Rust and Russell, 2000;Cagnoli and Russell, 2000;Cagnoli and Ulrych, 2001a,b;Miyamoto et al, 2003;Gómez-Ortiz et al, 2006). However, one of the main limitations of GPR is the exact determination of the mean velocity of the electromagnetic waves, which is key datum to estimate the depth of penetration into the ground.…”