Nested Stratigraphic Cycles and Depositional Systems of the Paleogene Central North Sea
Published:January 01, 1999
Jack E. Neal, Jeff A. Stein, Jim H. Gamber, 1999. "Nested Stratigraphic Cycles and Depositional Systems of the Paleogene Central North Sea", Mesozoic and Cenozoic Sequence Stratigraphy of European Basins, Pierre-Charles de Graciansky, Jan Hardenbol, Thierry Jacquin, Peter R. Vail
Download citation file:
A sequence stratigraphic analysis of subsurface data from the Paleogene strata of the central North Sea has documented a stratigraphic framework of 18–20 "third-order" depositional sequences nested within 5 "second-order" major regression/transgression facies (R/TF) cycles. Additional sequences have been documented through correlation of the subsurface deposits to outcrop sections of northwest Europe. This paper will document only those sequences observable in the subsurface data and characterize these sequences within a low and high order framework. The order of a cycle is based on observations concerning its constituents and its impact on the depositional systems of the basin, not strictly on its duration. Integration of the composite standard biostratigraphic method enabled the construction of a consistent chronostratigraphy based on the correlation of hiatal intervals identified with graphic correlation data terraces. An ideal relationship of graphic correlation terraces within a sequence stratigraphic model is diagrammed, providing the theoretical basis for the correlations presented. A depositional model is also proposed as a variant of the classic Vail model, considering the effect of depositional profile and sediment supply in the preservation and distribution of systems tracts. Recent revisions in central North Sea lithostratigraphy and sequence stratigraphy provide an opportunity for comparison between different methods and data resolutions.
Figures & Tables
Mesozoic and Cenozoic Sequence Stratigraphy of European Basins
Mesozoic and Cenozoic Sequence Stratrigraphy of European Basins - This project was designed to build a documented chronostratigraphic and outcrop record of depositional sequences calibrated across European Basins. Data on standard stages, magnetostratigraphy, and geochronology integrated with high resolution biostratigraphy calibrate the stratigraphic position of depositional sequence boundaries. Higher order eustatic sequences show a significant increase in the number identified. A good portion of the European Mesozoic and Cenozoic succession is set in a sequence stratigraphic context with a better stratigraphic record of its bonding surfaces.