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  • 11. Symposium "Tektonik, Struktur- und Kristallingeologie" , 2006-03
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Kinematic 3D Retro-Deformation of Fault Blocks Picked from 3D Seismics

Tanner, David C.ORCIDiD
Lohr, Tina
Krawczyk, Charlotte M.
Oncken, Onno
Endres, Heike
Samiee, Ramin
Trappe, Henning
Kukla, Peter A.
2006-03
Universitätsverlag Göttingen
Article in Anthology
Verlagsversion
Deutsch
11. Symposium "Tektonik, Struktur- und Kristallingeologie"
DOI: https://doi.org/10.23689/fidgeo-1823
Tanner, David C.; Lohr, Tina; Krawczyk, Charlotte M.; Oncken, Onno; Endres, Heike; Samiee, Ramin; Trappe, Henning; Kukla, Peter A., 2006-03: Kinematic 3D Retro-Deformation of Fault Blocks Picked from 3D Seismics. In: Philipp, S.; Leiss, B; Vollbrecht, A.; Tanner, D.; Gudmundsson, A. (eds.): 11. Symposium "Tektonik, Struktur- und Kristallingeologie"; 2006, Univ.-Verl. Göttingen, p. 226 - 228., DOI https://doi.org/10.23689/fidgeo-1823.
 
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  • Abstract
Movement on fault planes causes a large amount of smaller-scale deformation, ductile or brittle, in the area surrounding the fault. Much of this deformation is below the resolution of reflection seismics (i.e. sub-seismic, <10m displacement), but it is important to determine this deformation, since it can make up a large portion of the total bulk strain, for instance in a developing sedimentary basin. Calculation of the amount of sub-seismic strain around a fault by 3-D geometrical kinematic retro-deformation can also be used to predict the orientation and magnitude of these smaller-scale structures. However, firstly a 3-D model of the fault and its faulted horizons must be constructed at a high enough resolution to be able to preserve fault and horizon morphology with a grid spacing of less than 10 m. Secondly, the kinematics of the fault need to be determined, and thirdly a suitable deformation algorithm chosen to fit the deformation style. Then by restoring the faulted horizons to their pre-deformation state (a ‘regional’), the moved horizons can be interrogated as to the strain they underwent. Since strain is commutative, the deformation demonstrated during this retro-deformation is equivalent to that during the natural, forward deformation...
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  • 11. Symposium "Tektonik, Struktur- und Kristallingeologie" , 2006-03 [74]
Subjects:
Niedersächsiches Becken
Dreidimensionale Seismik
Störung <Geologie>
Kinematik
Modell
Reflexionsseismik {Geophysik}
Mitteleuropa {Geophysik}
Geodynamik der Lithosphäre {Geologie}
Tektogenese {Geologie}
Modellierung von Prozessen in der Geosphäre
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