In this section
@article{Lewis:2015:10.1111/bre.12151,
author = {Lewis, MM and Jackson, CA and Gawthorpe, RL},
doi = {10.1111/bre.12151},
journal = {Basin Research},
title = {Tectono-sedimentary development of early syn-rift deposits: the Abura Graben, Suez Rift, Egypt},
url = {http://dx.doi.org/10.1111/bre.12151},
year = {2015}
}
TY - JOUR
AB - The thickness and distribution of early syn-rift deposits record the evolution of structures accommodating the earliest phases of continental extension. However, our understanding of the detailed tectono-sedimentary evolution of these deposits is poor, because in the subsurface, they are often deeply buried and below seismic resolution and sparsely sampled by borehole data. Furthermore, early syn-rift deposits are typically poorly exposed in the field, being buried beneath thick, late syn-rift and post-rift deposits. To improve our understanding of the tectono-sedimentary development of early syn-rift strata during the initial stages of rifting, we examined quasi-3D exposures in the Abura Graben, Suez Rift, Egypt. During the earliest stage of extension, forced folding above blind normal fault segments, rather than half-graben formation adjacent to surface-breaking faults, controlled rift physiography, accommodation development and the stratigraphic architecture of non-marine, early syn-rift deposits. Fluvial systems incised into underlying pre-rift deposits and were structurally focused in the axis of the embryonic depocentre, which, at this time, was characterized by a fold-bound syncline rather than a fault-bound half graben. During this earliest phase of extension, sediment was sourced from the rift shoulder some 3 km to the NE of the depocentre, rather than from the crests of the flanking, intra-basin extensional forced folds. Fault-driven subsidence, perhaps augmented by a eustatic sea-level rise, resulted in basin deepening and the deposition of a series of fluvial-dominated mouth bars, which, like the preceding fluvial systems, were structurally pinned within the axis of the growing depocentre, which was still bound by extensional forced folds rather than faults. The extensional forced folds were eventually locally breached by surface-breaking faults, resulting in the establishment of a half graben, basin deepening and the deposition of shallow marine sandsto
AU - Lewis,MM
AU - Jackson,CA
AU - Gawthorpe,RL
DO - 10.1111/bre.12151
PY - 2015///
TI - Tectono-sedimentary development of early syn-rift deposits: the Abura Graben, Suez Rift, Egypt
T2 - Basin Research
UR - http://dx.doi.org/10.1111/bre.12151
UR - http://onlinelibrary.wiley.com/doi/10.1111/bre.12151/full
ER -