Changes

==Siliciclastic vs. carbonate supply==

==Siliciclastic vs. carbonate supply==

Most siliciclastic basins have sediment supplied from drainage areas outside of the boundary of the depositional basin. Lateral changes in sediment input locations can result in lateral shifts in the depocenter if enough space exists to accommodate the sediment near each input location. In carbonate basins, organisms near the site of accumulation produce most sediment, and facies tend to extend over large platform areas.

Most siliciclastic basins have sediment supplied from drainage areas outside of the boundary of the depositional basin. Lateral changes in sediment input locations can result in lateral shifts in the depocenter if enough space exists to accommodate the sediment near each input location. In carbonate basins, organisms near the site of accumulation produce most sediment, and facies tend to extend over large platform areas.

The figure below is a map of the drainage basin of the modern Mississippi River, illustrating the network of rivers feeding into one sediment input point. The Holocene depocenter of the Mississippi River is immediately offshore and west of the river mouth. Smaller drainage basins also supply terrigenous sediment to the western and central Gulf of Mexico, while in situ carbonate factories supply most of the sediment to the Florida peninsula.

[[:file:sedimentary-basin-analysis_fig4-12.png|Figure 1]] is a map of the drainage basin of the modern Mississippi River, illustrating the network of rivers feeding into one sediment input point. The Holocene depocenter of the Mississippi River is immediately offshore and west of the river mouth. Smaller drainage basins also supply terrigenous sediment to the western and central Gulf of Mexico, while in situ carbonate factories supply most of the sediment to the Florida peninsula.

 

==Depocenter complexes==

==Depocenter complexes==