Changes

==GOM basin depocenter time intervals==

==GOM basin depocenter time intervals==

<gallery>

<gallery>

file:sedimentary-basin-analysis_fig4-4.png|{{figure number|1}}

file:sedimentary-basin-analysis_fig4-4.png|{{figure number|1}}Major sand influxes into the northern Gulf of Mexico from Late Cretaceous to recently. After Winkler (1982){{citation needed}}; courtesy Gulf Coast Association of Geological Societies.

file:sedimentary-basin-analysis_fig4-6.png|{{figure number|2}}

file:sedimentary-basin-analysis_fig4-6.png|{{figure number|2}}Tectonic map of the GOM basin. Modified from Buffler (1991){{citation needed}}; courtesy New Orleans Geological Society.

file:sedimentary-basin-analysis_fig4-13.png|{{figure number|3}}After Piggott and Pulham<ref name=ch04r75 />). Copyright: Gulf Coast Section SEPM.

file:sedimentary-basin-analysis_fig4-13.png|{{figure number|3}}After Piggott and Pulham<ref name=ch04r75 />). Copyright: Gulf Coast Section SEPM.

file:sedimentary-basin-analysis_fig4-14.png|{{figure number|4}}After Piggott and Pulham<ref name=ch04r75 />). Copyright: Gulf Coast Section SEPM.

file:sedimentary-basin-analysis_fig4-14.png|{{figure number|4}}After Piggott and Pulham<ref name=ch04r75 />). Copyright: Gulf Coast Section SEPM.

</gallery>

</gallery>

In the northern GOM basin, depocenters prograde ([[:file:sedimentary-basin-analysis_fig4-4.png|Figure 1]]) over the transitional crust ([[:file:sedimentary-basin-analysis_fig4-6.png|Figure 2]]) and deform the underlying salt into a complex network of salt-cored anticlines and salt-withdrawal synclines (Figures 4-8, 9). Late Neogene depocenters of the Mississippi River, the largest source of sediment to the northern Gulf of Mexico, developed during five time periods from the latest Miocene through Holocene (from ;<ref name=ch04r75>Piggott, N., Pulham, A., 1993, Sedimentation rate as the control on hydrocarbon sourcing, generation, and [[migration]] in the deepwater Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 14th Annual Research conference, p. 179–191.</ref> see also .<ref name=ch04r38>Goldthwaite, D., 1991, Central Gulf Coast stratigraphy, in Goldthwaite, D., ed., An Introduction to Central Gulf Coast Geology: New Orleans Geological Society, p. 17–30.</ref> Following are the five depocenter intervals and their time periods.

In the northern GOM basin, depocenters prograde ([[:file:sedimentary-basin-analysis_fig4-4.png|Figure 1]]) over the transitional crust ([[:file:sedimentary-basin-analysis_fig4-6.png|Figure 2]]) and deform the underlying salt into a complex network of salt-cored anticlines and salt-withdrawal synclines ([[:file:sedimentary-basin-analysis_fig4-8.png|Figures 3]] and [[:file:sedimentary-basin-analysis_fig4-9.png|Figure 4]]). Late Neogene depocenters of the Mississippi River, the largest source of sediment to the northern Gulf of Mexico, developed during five time periods from the latest Miocene through Holocene (from ;<ref name=ch04r75>Piggott, N., Pulham, A., 1993, Sedimentation rate as the control on hydrocarbon sourcing, generation, and [[migration]] in the deepwater Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 14th Annual Research conference, p. 179–191.</ref> see also .<ref name=ch04r38>Goldthwaite, D., 1991, Central Gulf Coast stratigraphy, in Goldthwaite, D., ed., An Introduction to Central Gulf Coast Geology: New Orleans Geological Society, p. 17–30.</ref> Following are the five depocenter intervals and their time periods.

{| class = "wikitable"

{| class = "wikitable"

|-

|-

! Interval

! Interval || Time period, ma

! Time period, ma

|-

|-

| A

| A || 6–4

| 6–4

|-

|-

| B

| B || 4–3

| 4–3

|-

|-

| C

| C || 3–2.5

| 3–2.5

|-

|-

| D

| D || 2.5–1

| 2.5–1

|-

|-

| E

| E || 1–Present

| 1–Present

|}

|}