--> Abstract: Sequence Stratigraphic Models For Deposition Of Upper Carboniferous Fluvio-Deltaic Strata: Examples From Northwest Europe, by G. J. Hampson, K. D. Church, S. J. Davies, T. Elliott, S. S. Flint, and D. Mclean; #90928 (1999).

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HAMPSON, GARY J.1, KEVIN D. CHURCH1, SARAH J. DAVIES2, TREVOR ELLIOTT3, STEPHEN S. FLINT3, and DUNCAN McLEAN4
1T. H. Huxley School, Imperial College, London, UK
2Department of Earth Sciences, University of Edinburgh, UK
3Department of Earth Sciences, University of Liverpool, UK
4Department of Earch Sciences, University of Sheffield, UK

Abstract: Sequence Stratigraphic Models for Deposition of Upper Carboniferous Fluvio-Deltaic Strata: Examples from Northwest Europe

Stratigraphic correlations and facies interpretations of Upper Carboniferous fluvio-deltaic strata have been based traditionally on cyclothems bounded by marine flooding surfaces (marine bands). The recent recognition of sequence boundaries, defined by major incised valley-fill complexes, and other key surfaces of time-stratigraphic significance within selected cyclothems demands significant revision of traditional depositional models. Most importantly, a sequence stratigrpahic approach specifically addresses the issue of distribution of the major valley-fill complexes, several of which form hydrocarbon reservoirs in the onshore and offshore UK. Using outcrop and subsurface case studies from Lower Pennsylvanian (Namurian and Westphalian A) strata of northwest Europe, we present:

1. outcrop, core and wireline log criteria for the recognition of key time-stratigraphic surfaces;
2. a database of incised-valley geometry, extent, connectivity, and fill character, illustrating the major controls on these variables; and
3. a series of basin-scale, sequence-stratigraphic models for the deposition of turbidite-fronted deltas, sheet deltas, and coeval coastal plain deposits.

AAPG Search and Discovery Article #90928©1999 AAPG Annual Convention, San Antonio, Texas