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Geological Society, London, Special Publications; 1993; v. 71; p. 1-13;
DOI: 10.1144/GSL.SP.1993.071.01.01
© 1993 Geological Society of London

Tectonics and seismic sequence stratigraphy: an introduction

G. D. Williams

Geology Department, University of Keele, Keele, Staffordshire ST5 5BG, UK

The application of sequence stratigraphic models to seismic data is restricted by the vertical and spatial resolution of the data. The fundamental stratigraphic unit of the sequence stratigraphic technique is the seismically distinguished ‘sequence’ although the concept of tectonically related ‘megasequences’ is useful. Basin stratigraphy is controlled to varying degrees by eustatic sea-level change (or base level in lakes), subsidence/uplift (tectonics) and sediment supply. Three main basin types, rift-, wrench-, and thrust-related basins, have distinctive gross stratigraphic architectures. Localized, tectonically controlled subsidence and uplift has a significant control on three-dimensional stratigraphic patterns.





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