000 02287nab a2200205 4500
005 20260520000312.0
008 260224s2011 xxu
245 0 0 _aControls on synrift turbidite deposition on the hanging wall of the South Viking Graben, North Sea rift system, offshore Norway
260 _a
_b
_csep. 2011
270 _a05/10/2011 ; 05/10/2011
300 _a31 p. ; 1557-1587
520 _aTranscripción del resumen del autor. Three-dimensional seismic, wireline-log, core, and biostratigraphic data from the South Viking Graben, North Sea rift system, are integrated to investigate the controls on the temporal and spatial development of an Upper Jurassic synrift turbidite system deposited on the hanging-wall dipslope of a salt-influenced half graben. Turbidite deposition was coeval with the initiation and upslope (paleo-landward) migration of activity across a gravity-driven normal fault array. Three main synrift stratal units are identified, and these are mapped using seismic and well data. The lowermost unit (upper Oxfordian) comprises thick amalgamated turbidites, which are restricted to the hanging wall of the earliest, most basinward, growth fault. The middle unit (Kimmeridgian) is more areally extensive than the underlying system, draping the now inactive basinward growth fault and extending upslope into the hanging wall of a newly activated landward growth fault. The uppermost unit (lower to middle Volgian) is more sheetlike and was deposited when activity across all growth faults had mostly ceased and slope topography had been almost fully healed. This study demonstrates that hanging-wall dipslopes within rifts can be characterized by volumetrically significant, sand-rich, gravity flow-dominated depositional systems, and that the reservoir architecture of such deposits can be strongly controlled by syndepositional growth faulting. In addition, this study provides insights into the response of turbidites to tectonically driven changes in bathymetry, which may be applicable in a range of basin settings.
581 _a9
773 0 _tAAPG Bulletin
_g95
942 _cARTICULO
100 1 _aJackson, Christopher A.-L.
_949704
100 1 _aLarsen, Eirik
_951845
100 1 _aHanslien, Sigmund
_951846
999 _c186059
_d186059