Changes

==Effectiveness==

==Effectiveness==

[[File:Sedimentary-basin-analysis_fig4-25.png|thumb|300px|{{figure number|3}}Correlation of the the third-order eustatic curve of Haq et al (1988){{citation needed}} and the oxygen isotope curve of William and Trainor (1987) with seven prograding clinoform intervals from the High Island South Addition in the GOM basin. From Armentrout (1993);{{citation needed}} Courtesy Gulf Coast SEPM.]]

[[File:Sedimentary-basin-analysis_fig4-25.png|thumb|300px|{{figure number|3}}Correlation of the the third-order eustatic curve of Haq et al (1988)<ref name=ch04r43 /> and the oxygen isotope curve of William and Trainor (1987) with seven prograding clinoform intervals from the High Island South Addition in the GOM basin. From Armentrout (1993);{{citation needed}} Courtesy Gulf Coast SEPM.]]

The top seal of the ''Glob alt'' reservoir is especially effective because it is thick and has a regional extent as a consequence of its position at a third-order turnaround from regression to transgression. This turnaround is from regressive cycles 3.4–3.5–3.6 to transgressive cycles 3.7–3.8 on the Haq et al.<ref name=ch04r43>Haq, B., Hardenbol, J., Vail, P., R., 1988, Mesozoic and Cenozoic chronostratigraphy and cycles of sea-level change: SEPM Special Publication 42, p. 71–108.</ref> cycle chart ([[:File:Sedimentary-basin-analysis_fig4-25.png|Figure 3]]).

The top seal of the ''Glob alt'' reservoir is especially effective because it is thick and has a regional extent as a consequence of its position at a third-order turnaround from regression to transgression. This turnaround is from regressive cycles 3.4–3.5–3.6 to transgressive cycles 3.7–3.8 on the Haq et al.<ref name=ch04r43>Haq, B., Hardenbol, J., Vail, P., R., 1988, Mesozoic and Cenozoic chronostratigraphy and cycles of sea-level change: SEPM Special Publication 42, p. 71–108.</ref> cycle chart ([[:File:Sedimentary-basin-analysis_fig4-25.png|Figure 3]]).