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AAPG Bulletin
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AAPG Bulletin; Year: 2022; Issue: March DOI: 10.1306/07132120084
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Figure 6.
Three regional west-east–striking (dip) cross sections across the North Sea rift system illustrate the basin’s three main (pre-, syn-, and postrift) tectono-stratigraphic megasequences. The main rift-related platform-graben structural domains such as the Shetland platform, the East Shetland Basin, the Viking Graben, the Horda platform and Norwegian shelf, Utsira high, Stord Basin, Western platform, Western trough, Forties Montrose high, Eastern trough, Jaeren high and Egersund Basin are all highlighted. The cross sections serve to illustrate how migration out from the stratigraphically younger, but structurally deeper Upper Jurassic (synrift) source rock can fill-and-spill into rotational fault blocks housing prerift reservoirs, their synrift counterparts in half-graben hanging-wall depocenters and into reservoirs belonging to the typical “steer’s horn” postrift section too.
Figure 6. Three regional west-east–striking (dip) cross sections across the North Sea rift system illustrate the basin’s three main (pre-, syn-, and postrift) tectono-stratigraphic megasequences. The main rift-related platform-graben structural domains such as the Shetland platform, the East Shetland Basin, the Viking Graben, the Horda platform and Norwegian shelf, Utsira high, Stord Basin, Western platform, Western trough, Forties Montrose high, Eastern trough, Jaeren high and Egersund Basin are all highlighted. The cross sections serve to illustrate how migration out from the stratigraphically younger, but structurally deeper Upper Jurassic (synrift) source rock can fill-and-spill into rotational fault blocks housing prerift reservoirs, their synrift counterparts in half-graben hanging-wall depocenters and into reservoirs belonging to the typical “steer’s horn” postrift section too.