Changes

 

==Map of major sand influxes==

==Map of major sand influxes==

Major influxes of sand into the northern GOM margin have shifted laterally from the Late Cretaceous to Recent.<ref name=ch04r114>Winker, C., D., 1982, Cenozoic shelf margins, northwestern Gulf of Mexico: Gulf Coast Assoc. of Geological Societies Transactions, vol. 32, p. 427–448.</ref> Each of these depocenters is related to the progressive filling of the basin margin, shifting the accommodation space basinward. Accommodation space refers to the volume of space available for sediment accumulation—the space resulting from the interaction of tectonic subsidence or uplift, sea level change, and compaction of the underlying sediment. Additionally, the lateral shift of the fluvial systems is recorded by sand-prone facies that document both the primary input area and the lateral shift of the depocenter through time.

Major influxes of sand into the northern GOM margin have shifted laterally from the Late Cretaceous to Recent.<ref name=ch04r114>Winker, C., D., 1982, Cenozoic shelf margins, northwestern Gulf of Mexico: Gulf Coast Assoc. of Geological Societies Transactions, vol. 32, p. 427–448.</ref> Each of these depocenters is related to the progressive filling of the basin margin, shifting the accommodation space basinward. Accommodation space refers to the volume of space available for sediment accumulation—the space resulting from the interaction of tectonic subsidence or uplift, sea level change, and compaction of the underlying sediment. Additionally, the lateral shift of the fluvial systems is recorded by sand-prone facies that document both the primary input area and the lateral shift of the depocenter through time.