Changes

==Possible critical moments==

==Possible critical moments==

[[File:Sedimentary-basin-analysis_fig4-45.png|thumb|300px|{{figure number|3}}]]Time scale from Haq et al.;<ref>Haq, B., J. Hardenbol, and P. R. Vail, 1988, Mesozoic and Cenozoic chronostratigraphy and cycles of sea-level change: SEPM Special Publication 42, p. 71–108.</ref> DOW represents source rock, generation, and critical moment estimates.<ref name=ch04r29 />

[[File:Sedimentary-basin-analysis_fig4-45.png|thumb|300px|{{figure number|3}}Time scale from Haq et al.;<ref>Haq, B., J. Hardenbol, and P. R. Vail, 1988, Mesozoic and Cenozoic chronostratigraphy and cycles of sea-level change: SEPM Special Publication 42, p. 71–108.</ref> DOW represents source rock, generation, and critical moment estimates.<ref name=ch04r29 />]]

[[File:Sedimentary-basin-analysis_fig4-53.png|thumb|300px|{{figure number|4}}]]1-D burial history/maturation plot showing the critical moment (2.0 Ma) and the time of oil generation (2.0 Ma to present) for the East Breaks 160-161 minibasin petroleum system, assuming that lower Miocene rocks have sourced the hydrocarbons. After Dow et al.;<ref name=ch04r29 />courtesy Gulf Coast SEPM.

[[File:Sedimentary-basin-analysis_fig4-53.png|thumb|300px|{{figure number|4}}1-D burial history/maturation plot showing the critical moment (2.0 Ma) and the time of oil generation (2.0 Ma to present) for the East Breaks 160-161 minibasin petroleum system, assuming that lower Miocene rocks have sourced the hydrocarbons. After Dow et al.;<ref name=ch04r29 />courtesy Gulf Coast SEPM.]]

According to the [[maturation]] model for a middle Miocene [[source rock]], peak oil generation would have begun 0.2 Ma<ref name=ch04r29 /> and the critical moment for the East Breaks 160-161 petroleum system would be 0.20 Ma ([[:File:Sedimentary-basin-analysis_fig4-45.png|Figures 3]] and [[:File:Sedimentary-basin-analysis_fig4-53.png|4]]). If a stratigraphically deeper lower Paleocene or upper Jurassic source rock is the origin of the East Breaks oils, an earlier onset of significant generation could have occurred with [[migration]], continuing to today and supplying the petroleum that has charged the field.

According to the [[maturation]] model for a middle Miocene [[source rock]], peak oil generation would have begun 0.2 Ma<ref name=ch04r29 /> and the critical moment for the East Breaks 160-161 petroleum system would be 0.20 Ma ([[:File:Sedimentary-basin-analysis_fig4-45.png|Figures 3]] and [[:File:Sedimentary-basin-analysis_fig4-53.png|4]]). If a stratigraphically deeper lower Paleocene or upper Jurassic source rock is the origin of the East Breaks oils, an earlier onset of significant generation could have occurred with [[migration]], continuing to today and supplying the petroleum that has charged the field.