scholarly journals Complex geophysical investigation of the Kapušany landslide (Eastern Slovakia)

2016 ◽  
Vol 46 (2) ◽  
pp. 111-124 ◽  
Author(s):  
David Kušnirák ◽  
Ivan Dostál ◽  
René Putiška ◽  
Andrej Mojzeš
Keyword(s):  
Gamma Ray ◽  
Geophysical Methods ◽  
Potential Method ◽  
Structural Features ◽  
Geological Structure ◽  
Inverse Model ◽  
Gamma Ray Spectrometry ◽  
Geophysical Investigation ◽  
Self Potential

Abstract Geophysical survey is a very useful and popular tool used by engineering geologists to examine landslides. We present a case study from the Kapušany landslide, Eastern Slovakia, where a broad spectrum of geophysical methods were applied along two perpendicular profiles in order to compare the ability of the methods to detect as many structural features of the landslide as possible. The 2D Electrical Resistivity Tomography inverse model was capable of defining the geological structure of the landslide and defining the shear zone, however the resolution of the inverse model does not allow us to identify cracks or other minor features of the landslide. These, however, were well recorded in the results of Dipole Electromagnetic Imaging and the Self Potential method. In addition microgravimetry, Gamma-Ray Spectrometry and Soil Radon Emanometry were experimentally employed to validate the results obtained from electrical methods and afterwards final geological models, based on the integrated interpretation of all involved methods were constructed.

scholarly journals Application of Gamma-ray Spectrometry in Discovering the Granitic Monument of King Pepi I: A Case Study from Hierakonpolis, Aswan, Egypt

2018 ◽  
Vol 176 (4) ◽  
pp. 1639-1647 ◽  
Author(s):  
Akram Aziz ◽  
Tamer Attia ◽  
Liam McNamara ◽  
Renee Friedman
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry

Using in situ gamma ray spectrometry (GRS) exploration of buried archaeological structures: A case study from NW Spain

2018 ◽  
Vol 34 ◽  
pp. 247-254 ◽  
Author(s):  
Jorge Sanjurjo-Sánchez ◽  
Carlos Arce Chamorro ◽  
Carlos Alves ◽  
Jose Carlos Sánchez-Pardo ◽  
Rebeca Blanco-Rotea ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry ◽  
Nw Spain

scholarly journals Tectonic structure of Central-Western Attica (Greece) based on geophysical in vestigations-Preliminary results

2018 ◽  
Vol 40 (3) ◽  
pp. 1207 ◽  
Author(s):  
T. D. Papadopoulos ◽  
N. Goulty ◽  
N. S. Voulgaris ◽  
J. D. Alexopoulos ◽  
I. Fountoulis ◽  
...  
Keyword(s):  
Geophysical Methods ◽  
Geological Structure ◽  
Fault Zones ◽  
Geophysical Investigation ◽  
Preliminary Results ◽  
Athens Earthquake ◽  
Gravity Measurements ◽  
Geological Sciences ◽  
First Time ◽  
Seismic Lines

In an effort to investigate the deep geological structure in the broader area of central-western Attica, that suffered severe damage during the destructive Athens earthquake of September 7th, 1999, the Department of Geophysics-Geothermics of the Faculty of Geology and Geoenvironment of Athens University, in collaboration with the Geodynamic Institute of National Observatory of Athens and the Department of Geological Sciences of Durham University, carried out a combined geophysical survey. For the first time in Attica, seismic and gravity geophysical methods were applied along profiles, in such an extensive scale. Within the framework of this investigation the following tasL· were accomplished: a) Three (3) seismic lines of about 30 kilometres of total length, two (2) in the area of Thriassion plain and one (1) along the Parnitha-Krioneri-Drosia-Ekali-Dionysos axis (Attica plain) and b) 338 gravity measurements distributed along eight (8) gravity profiles, four (4) of which in Thriassion plain, three (3) in Petroupoli-Aharnes-Thrakomakedones region (Attica plain) and one (1) along Parnitha-Krioneri-Drosia-Ekali-Dionysos axis (Attica plain). Preliminary results of the geophysical investigation combined with existing geological and tectonic data are presented in this paper. Significant variation in the elevation of the alpine basement has been detected, expressed by manifestation of low and high subsurface areas which are well correlated with existing fault zones. In the area of Thriassion plain the thickness of post-alpine sediments is estimated of a few hundred meters (<500 meters) and huge thickness of several hundred meters (-800 meters) of post-alpine sediments were detected in Thrakemakedones and Krioneri areas. The relief of alpine basement is more intense in fault zones areas, such as Thriassion plain (WNW-ESE), Pathitha and Kifissos (NE-SW) as well as along the fault zone outline the Fili and Aharnes graben and is covered by postalpine formations

scholarly journals Magnetic and gamma-ray spectrometric airborne geophysical data for investigating potential mineral resources and generating geoscientific knowledge in Colombia

2021 ◽  
Vol 48 (Spl.1) ◽  
Author(s):  
Ismael Enrique Moyano Nieto ◽  
Renato Cordani ◽  
Marcela Lara ◽  
Óscar Rojas ◽  
Manuel Puentes ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Gamma Ray ◽  
Geophysical Methods ◽  
Mineral Resources ◽  
Gamma Ray Spectrometry ◽  
Data Sets ◽  
Access To Information ◽  
Airborne Geophysical Data ◽  
Geological Research

The Servicio Geológico Colombiano has made available several airborne magnetometry and gamma-ray spectrometry datasets. The information was acquired in 15 blocks that cover approximately 520,000 square  kilometers of Colombian territory, representing more than 850,000 linear kilometers of information. The data  were collected along flight lines separated by 500 meters or 1000 meters, depending on the area, with sampling rates of 10 Hz (8 meters) and 1 Hz (80 meters) for the magnetometry and gamma-ray spectrometry  data, respectively. The information is stored in 30 databases separated for each block and for each of the geophysical methods used. The Servicio Geológico Colombiano has provided a web portal that provides  detailed specifications for each database and allows interested parties to see the terms and conditions to  access the datasets and to check possible restrictions on access to information. To date, there is no  geophysical database in Colombia with the coverage and resolution of these data sets, which will be very  useful for geological research and research on potential mineral resources and to support geohazard monitoring, land-use planning and providing a baseline dataset for environmental monitoring. 

Airborne gamma-ray spectrometry inversion: Case study at Mara Rosa Magmatic Arc, Brazil

2021 ◽  
Author(s):  
Jessica D. Weihermann ◽  
Saulo P. Oliveira ◽  
Yaoguo Li ◽  
Francisco J. F. Ferreira ◽  
Adalene M. Silva
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry ◽  
Magmatic Arc
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