Changes

==Identifying sequence in the GOB basin example==

==Identifying sequence in the GOB basin example==

In Figure 4-24, candidates for maximum flooding surfaces are identified by abundance peaks in both foraminifera and nannoplankton and by extinction events known to be associated with regionally significant maximum transgressions.<ref name=ch04r10 /><ref name=Schaffer1987a /><ref name=Schaffer1987b /><ref name=ch04r72 /> Sequence boundary candidates occur between the maximum flooding surfaces and are identified by low abundance of fossils and by wireline log patterns. The northern wells (right) are rich in sand deposited in shallow water (neritic biofacies); sequence boundaries are likely to occur at the top of forestepping parasequence sets. The southern wells (left) are sand-poor shale deposited in deep water (bathyal biofacies); sequence boundaries are likely to occur at or slightly below flat-based blocky sands and at faunal abundance minima.

In Figure 4-24, candidates for maximum flooding surfaces are identified by abundance peaks in both foraminifera and nannoplankton and by extinction events known to be associated with regionally significant maximum transgressions.<ref name=ch04r10 /><ref name=Shaffer1987a /><ref name=Shaffer1987b /><ref name=ch04r72 /> Sequence boundary candidates occur between the maximum flooding surfaces and are identified by low abundance of fossils and by wireline log patterns. The northern wells (right) are rich in sand deposited in shallow water (neritic biofacies); sequence boundaries are likely to occur at the top of forestepping parasequence sets. The southern wells (left) are sand-poor shale deposited in deep water (bathyal biofacies); sequence boundaries are likely to occur at or slightly below flat-based blocky sands and at faunal abundance minima.

==See also==

==See also==