--> Drainage Development and Sediment Flux within Extensional Basins: Implications for Reservoir Distribution, Examples from the Sperchios Basin, Central Greece, by P. P. Eliet; #90986 (1994).

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Abstract: Drainage Development and Sediment Flux within Extensional Basins: Implications for Reservoir Distribution, Examples from the Sperchios Basin, Central Greece

Pierre P. Eliet

Active extension within central Greece provides an ideal framework for the analysis of tectonic controls on the development of drainage architecture, depositional systems and the distribution of plays within syn-rift basins.

The Sperchios basin is an asymmetric graben, bounded by a major border fault system, with notable fault segmentation on a variety of scales and the development of discrete transfer zones. Detailed drainage basin studies have revealed that drainage is highly focused and organized within this rift. Fault transfer zones and points of drainage antecedence become areas of major sediment flux routings into hanging-wall basins. As faults switch and propagate, lateral drainage deviation may occur along a fault zone, further controlling the output of sediment within the basin.

Development of drainage through transfer zones produces systems an order of magnitude larger than networks sourced directly from the footwall of fault segments. Along the border fault, maximum sediment input into the basin is concentrated from flow emanating through these fault transfer zones. From drainage basin magnitude, zones of maximum sediment flux within the basin are mapped and the interaction of normal faulting with fluvial depositional systems analyzed.

This analysis enables the prediction of high sediment flux zones within syn-rift settings and thus the potential prediction of the location of syn-rift plays with respect to major basin bounding structures.

AAPG Search and Discovery Article #90986©1994 AAPG Annual Convention, Denver, Colorado, June 12-15, 1994