Article
Engineering, Civil
Matthias Leopold, Conrad Gupanis-Broadway, Andy Baker, Stuart Hankin, Pauline Treble
Summary: This study validated a theoretical hydrological model of the karst critical zone by using time-lapse electric resistivity tomography (TL-ERT) to monitor the area above Golgotha Cave in Western Australia. The TL-ERT program identified previously unknown permanent water storages and fast hydrological flow pathways, confirming and extending the existing hydrogeological model. The resulting conceptual model showcased annual recharge patterns, preferential flow paths, and time lags between soil moisture saturation and seasonal connections in the karst system.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Geological
Jessica Holmes, Jonathan Chambers, Paul Wilkinson, Philip Meldrum, Mihai Cimpoiasu, James Boyd, David Huntley, Paul Williamson, David Gunn, Ben Dashwood, Jim Whiteley, Arnaud Watlet, Matthew Kirkham, Kelvin Sattler, David Elwood, Vinayagamoothy Sivakumar, Shane Donohue
Summary: This study focuses on monitoring a landslide in the Thompson River Valley transportation corridor using a novel Electrical Resistivity Tomography (ERT) monitoring system, providing insights into the impact of moisture on slope stability.
ENGINEERING GEOLOGY
(2022)
Article
Geochemistry & Geophysics
A. Sciarra, B. Cantucci, V. Sapia, R. De Ritis, T. Ricci, R. Civico, G. Galli, D. Cinti, M. Coltorti
Summary: The study found that the 2012 seismic sequence significantly influenced the distribution of soil gases in the area. Concentrations of all investigated species, except helium, increased after the mainshocks, likely due to crustal deformation promoting the uprising of geogas. In 2015, when the stress has dissipated, these concentrations gradually decreased towards pre-seismic levels.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2021)
Article
Archaeology
Katharina Rusch, Daniel Koehn, Harald Stumpel, Walter Gauss, Wolfgang Rabbel
Summary: The study presents an extensive geophysical investigation of enigmatic subsurface structures in Ancient Aigeira, Greece, which could be interpreted as prehistoric tombs or geological weathering patterns. Nonseismic methods are unable to distinguish between these interpretations, while shear-wave seismics and full-waveform inversion (FWI) prove to be effective in differentiating between them.
ARCHAEOLOGICAL PROSPECTION
(2022)
Article
Geosciences, Multidisciplinary
Eftychia Amanatidou, George Vargemezis, Panagiotis Tsourlos
Summary: The geophysical survey in the area of the new University of Wester Macedonia focused on detecting karst features on limestone rocks. Multiple methods including ERT, SRT, and MASW were used, highlighting the importance of joint interpretation and the reliability of seismic methods in cavity detection. MASW, as a complementary technique, still faces challenges in delimitating karst features.
JOURNAL OF APPLIED GEOPHYSICS
(2022)
Article
Green & Sustainable Science & Technology
Romina A. S. Gehrmann, Giuseppe Provenzano, Christoph Bottner, Hector Marin-Moreno, Gaye Bayrakci, Yee Y. Tan, Naima K. Yilo, Axel T. Djanni, Karen A. Weitemeyer, Timothy A. Minshull, Jonathan M. Bull, Jens Karstens, Christian Berndt
Summary: The study reveals the porosity and free gas content at an active methane venting site in the UK sector of the North Sea, with a multi-disciplinary approach and analysis of CSEM data, seismic reflection, and core logging data. Real data inversions indicate the presence of up to 34 +/- 14% free gas in a 30-40 m thick gas pocket underneath the pockmark within the stratigraphic highs of a till layer above the glacial unconformity in the Aberdeen Ground Formation.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Water Resources
Leonard O. Ohenhen, Micah Mayle, Folarin Kolawole, Ahmed Ismail, Estella A. Atekwana
Summary: This study characterizes the local basement aquifers in central Malawi, which are geologically complex reservoir targets. By integrating 2-D seismic reflection, 2-D electrical resistivity imaging, and borehole data, a layered weathering profile consisting of shallow thin laterite and sub-lateritic layers, saprolite, saprock, and fractured/fresh basement is identified. Four potential water-bearing zones are found, and the most productive boreholes intersect low resistivity anomalies collocated with strong but discontinuous reflectors, indicating connected water-bearing zones.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2023)
Article
Geosciences, Multidisciplinary
M. Pavoni, J. Boaga, F. M. Wagner, A. Bast, M. Phillips
Summary: Geophysical techniques have shown promise in studying mountain permafrost, but challenges remain in quantifying the subsurface composition and interpreting results. In this study, an optimized joint inversion approach of electrical resistivity and refraction seismic tomography data was applied to two ice-rich mountain permafrost sites in the Swiss Alps, resulting in improved understanding of their structure and composition.
JOURNAL OF APPLIED GEOPHYSICS
(2023)
Article
Geochemistry & Geophysics
Angelos Almpanis, Panagiotis Tsourlos, George Vargemezis, Costas Papazachos
Summary: This study investigates the performance of cross-hole electrical resistivity tomography measurements, finding that the pole-dipole array configuration provides the most robust and reliable results. Additionally, the slot density of PVC casings also affects data quality, with denser slot configurations resulting in better outcomes. Existing boreholes with slotted PVC casings can be efficiently utilized for electrical resistivity tomography mapping, offering cost savings and high-resolution subsurface imaging benefits.
NEAR SURFACE GEOPHYSICS
(2022)
Article
Geology
R. Mendoza, J. Rey, J. Martinez, M. C. Hidalgo, S. Sandoval
Summary: In this study, the effectiveness of various geophysical techniques for imaging geological structures with mining interest was analysed. The old district of Linares-La Carolina in Southeast Spain was chosen as the study area, and direct information from surface geology and boreholes was used for calibration and verification of the geophysical tools. The study focused on the western boundary of the mining district, where discontinuity of veins due to regional fractures resulted in abandonment of mining activities.
ORE GEOLOGY REVIEWS
(2021)
Article
Geosciences, Multidisciplinary
Sean Cheong Heng Lee, Khairul Arifin Mohd Noh, Muhammad Noor Amin Zakariah
Summary: This research successfully identified and located potential groundwater in fracture carbonate hard rocks through the integration of high-resolution electrical resistivity tomography (ERT) and seismic refraction methods. The Data Levels Synthesization (DLS) method enhanced the accuracy in delineating hydrogeological structures and anomalies, ultimately achieving a high-resolution ERT image validated through seismic refraction, lineament map, and tube well drillings.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Engineering, Geological
Federico Vagnon, Cesare Comina, Alessandro Arato, Antonella Chiappone, Renato Maria Cosentini, Sebastiano Foti
Summary: River embankments and small earth dams are commonly used to protect populated areas from floods and provide water reservoirs. This study proposes an efficient and affordable investigation method using geophysical parameters to characterize the structures. The results are consistent with local geotechnical investigations and can guide engineers and authorities in planning maintenance and measures to reduce flood risk.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2022)
Article
Geochemistry & Geophysics
Sonja H. Wadas, Hermann Buness, Raphael Rochlitz, Peter Skiba, Thomas Guenther, Michael Grinat, David C. Tanner, Ulrich Polom, Gerald Gabriel, Charlotte M. Krawczyk
Summary: This study demonstrates the benefits of a combined geophysical investigation using P-wave and SH-wave reflection seismics, electrical resistivity tomography, transient electromagnetics, and gravimetry for better understanding of subsurface dissolution processes. By applying these methods in the Esperstedter Ried area in Germany, researchers were able to locate buried dissolution structures and zones, faults and fractures, as well as potential fluid pathways and aquifers.
Article
Geochemistry & Geophysics
A. K. Mirinets, A. A. Bobachev, A. E. Rybalko
Summary: The results of VHR and ERT measurements in Petrozavodsk Bay of Lake Onega are presented, revealing the structure of Quaternary sediments. Five seismic sequences were identified through seismic stratigraphy analysis, and a three-layer geoelectric section was obtained using ERT. The joint interpretation of geophysical data and the application of VHR and ERT acquisitions show great potential.
SEISMIC INSTRUMENTS
(2022)
Article
Archaeology
Peter Fischer, Tina Wunderlich, Wolfgang Rabbel, Andreas Voett, Timo Willershaeuser, Kalliopi Baika, Diamanto Rigakou, Garyfalia Metallinou
ARCHAEOLOGICAL PROSPECTION
(2016)
Article
Geochemistry & Geophysics
Sungchan Choi, In-Chang Ryu, H. -J. Gotze, Y. Chae
GEOPHYSICAL JOURNAL INTERNATIONAL
(2017)
Article
Geochemistry & Geophysics
J. Autin, M. Scheck-Wenderoth, H. -J. Goetze, C. Reichert, D. Marchal
Article
Geosciences, Multidisciplinary
Jaroslava Panisova, Attila Balazs, Zsfia Zalai, Miroslav Bielik, Ferenc Horvath, Szabolcs Harangi, Sabine Schmidt, Hans-Juergen Goetze
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2018)
Review
Geosciences, Multidisciplinary
Hans-Juergen Goetze, Roland Pail
Article
Geochemistry & Geophysics
Mohamed Sobh, Joerg Ebbing, Ahmed Hamdi Mansi, Hans-Juergen Goetze
Article
Geochemistry & Geophysics
N. Holzrichter, W. Szwillus, H. -J. Goetze
GEOPHYSICAL JOURNAL INTERNATIONAL
(2019)
Article
Geochemistry & Geophysics
M. Sobh, J. Ebbing, A. H. Mansi, H. -J. Goetze, E. L. Emry, M. G. Abdelsalam
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2020)
Article
Geochemistry & Geophysics
M. Sobh, C. Gerhards, I Fadel, H-J Goetze
Summary: Surface heat flow and Curie depth in southern Africa provide crucial information on the thermal and compositional structure of the lithosphere. Magnetic anomaly data can be used to estimate Curie depth, which offers insights into the thermal structure of the crust. Comparison with Moho depth models suggests that Curie depth estimates may reflect compositional rather than temperature-controlled constraints in certain regions.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2021)
Article
Archaeology
R. Pasteka, P. Zahorec, J. Papc, J. Mrlina, H. -j. Gotze, S. Schmidt
Summary: This study investigates the use of highly accurate microgravimetric measurements to map the recently discovered muon chamber in the Great Pyramid of Giza. By using modern gravimeters and realistic model calculations, researchers aim to understand the composition and structure of the pyramid chamber.
JOURNAL OF ARCHAEOLOGICAL SCIENCE-REPORTS
(2022)
Article
Geosciences, Multidisciplinary
Ajay Kumar, Mauro Cacace, Magdalena Scheck-Wenderoth, Hans-Juergen Goetze, Boris J. P. Kaus
Summary: The dynamics of the Alps and surrounding regions remain not fully understood due to the non-unique interpretation of its upper-mantle architecture. By clustering available shear-wave tomography models, three end-member scenarios of lithospheric thickness and slab geometries were derived and used as input for geodynamic simulations, revealing a potential explanation for observed seismicity.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Pavol Zahorec, Juraj Papco, Roman Pasteka, Miroslav Bielik, Sylvain Bonvalot, Carla Braitenberg, Joerg Ebbing, Gerald Gabriel, Andrej Gosar, Adam Grand, Hans-Juergen Goetze, Gyorgy Hetenyi, Nils Holzrichter, Edi Kissling, Urs Marti, Bruno Meurers, Jan Mrlina, Ema Nogova, Alberto Pastorutti, Corinne Salaun, Matteo Scarponi, Josef Sebera, Lucia Seoane, Peter Skiba, Eszter Szucs, Matej Varga
Summary: The AlpArray Gravity Research Group focuses on compiling a homogeneous gravity data set in the Alpine region, with contributions from European countries and shipborne data. Their recalculated gravity data can be used for geological studies, mineral exploration, and more.
EARTH SYSTEM SCIENCE DATA
(2021)
Article
Geochemistry & Geophysics
Cameron Spooner, Magdalena Scheck-Wenderoth, Hans-Juergen Goetze, Jorg Ebbing, Gyoergy Hetenyi
Article
Energy & Fuels
H. -J Goetze, S. Schmidt, P. Menzel
OIL GAS-EUROPEAN MAGAZINE
(2017)
Article
Geosciences, Multidisciplinary
Jan Sefara, Miroslav Bielik, Jozef Vozar, Martin Katona, Viktoria Szalaiova, Anna Vozarova, Barbora Simonova, Jaroslava Panisova, Sabine Schmidt, Hans-Juergen Goetze
GEOLOGICA CARPATHICA
(2017)