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  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

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Basin paleogeography is defined by picking an isochronous or coeval surface or interval and mapping the associated [[Seismic facies mapping|seismic facies]] and [[lithofacies]]. For example, the location of sandy lithofacies vs. clayey lithofacies or mounded vs. tabular seismic reflection configurations may delineate the position of [[Lithofacies and environmental analysis of clastic depositional systems#Shoreline deposits|shorelines]] or [[reef]]s. Mapping thickness of reservoir-quality rocks is also useful for establishing paleogeography; thick, linear, [[dip]]-oriented trends of sandstone may indicate paleochannel complexes.

Basin paleogeography is defined by picking an [http://en.wiktionary.org/wiki/isochronous isochronous] or coeval surface or interval and mapping the associated [[Seismic facies mapping|seismic facies]] and [[lithofacies]]. For example, the location of sandy lithofacies vs. clayey lithofacies or mounded vs. tabular seismic reflection configurations may delineate the position of [[Lithofacies and environmental analysis of clastic depositional systems#Shoreline deposits|shorelines]] or [[reef]]s. Mapping thickness of reservoir-quality rocks is also useful for establishing paleogeography; thick, linear, [[dip]]-oriented trends of sandstone may indicate paleochannel complexes.

==Procedure==

==Procedure==

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| Using information gained in step 5, identify areas that may contain overlooked reservoir, seal, and [[source rock]]s in the same isochronous interval or in isochronous intervals with similar character. Also, consider possible [[migration]] avenues along which fluids could move from the source rock to the reservoir, from higher to lower pressure regimes. Such avenues might include sand-prone pathways, faults, salt walls, and unconformities.

| Using information gained in step 5, identify areas that may contain overlooked reservoir, seal, and [[source rock]]s in the same [http://en.wiktionary.org/wiki/isochronous isochronous] interval or in isochronous intervals with similar character. Also, consider possible [[migration]] avenues along which fluids could move from the source rock to the reservoir, from higher to lower pressure regimes. Such avenues might include sand-prone pathways, faults, salt walls, and unconformities.

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