TY  - CHAP
A1  - Tanner, David C.
A1  - Lohr, Tina
A1  - Krawczyk, Charlotte M.
A1  - Oncken, Onno
A1  - Endres, Heike
A1  - Samiee, Ramin
A1  - Trappe, Henning
A1  - Kukla, Peter A.
ED  - Philipp, Sonja
ED  - Leiss, Bernd
ED  - Vollbrecht, Axel
ED  - Tanner, David
ED  - Gudmundsson, Agust
T1  - Kinematic 3D Retro-Deformation of Fault Blocks Picked from 3D Seismics
T2  - 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
Y1  - 2006-03
DO  - 10.23689/fidgeo-1823
PB  - Universitätsverlag Göttingen
N2  - 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...
UR  - http://hdl.handle.net/11858/00-1735-0000-0001-3447-A
ER  -