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  • 11. Symposium "Tektonik, Struktur- und Kristallingeologie" , 2006-03
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Electromagnetic radiation (EMR) and its interpretation in terms of stresses in the lithosphere

Greiling, Reinhard O.
Lichtenberger, Marco
Obermeyer, Hennes
2006-03
Universitätsverlag Göttingen
Article in Anthology
Verlagsversion
Deutsch
11. Symposium "Tektonik, Struktur- und Kristallingeologie"
DOI: https://doi.org/10.23689/fidgeo-1916
Greiling, Reinhard O.; Lichtenberger, Marco; Obermeyer, Hennes, 2006-03: Electromagnetic radiation (EMR) and its interpretation in terms of stresses in the lithosphere. In: Philipp, S.; Leiss, B; Vollbrecht, A.; Tanner, D.; Gudmundsson, A. (eds.): 11. Symposium "Tektonik, Struktur- und Kristallingeologie"; 2006, Univ.-Verl. Göttingen, p. 70 - 72., DOI https://doi.org/10.23689/fidgeo-1916.
 
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  • Abstract
Electromagnetic radiation (EMR) as measured at the surface of the lithosphere or underground shows preferred orientations, which can be related to microcracks and other brittle structures at micro and nano scales (see Bahat et al. 2005 and references therein). During the last years, numerous studies showed the applicability of EMR measurements for the determination of active fractures and stress orientations. EMR is determined with a ‘Cerescope’, which picks up EMR signals at frequencies from 5– 50 kHz (Obermeyer, 2005) with a ferrite aerial and processes them electronically so that the results can be displayed on a screen or copied to a computer. With the help of oriented EMR measurements, intensity variations are determined, which can be related to preferred crack fracture orientations. From this information, orientations of the principal stresses can be calculated. In addition, the intensity of the EMR is related to stress magnitudes...
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  • 11. Symposium "Tektonik, Struktur- und Kristallingeologie" , 2006-03 [74]
Subjects:
Lithosphäre
Fraktographie
Spannungstensor
Elektromagnetisches Verfahren
Elektrische Verfahren {Geophysik}
Methodik {Strukturgeologie}
Strukturelle Erscheinungen {Strukturgeologie}
Gesteinsdeformation {Strukturgeologie}
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