Changes

==Siliciclastic vs. carbonate supply==

==Siliciclastic vs. carbonate supply==

[[file:sedimentary-basin-analysis_fig4-12.png|thumb|{{figure number|1}}Modified. Copyright: Coleman and Roberts (1991); courtesy New Orleans Geological Society.]]

[[file:sedimentary-basin-analysis_fig4-12.png|thumb|{{figure number|1}}Map of the drainage basin of the modern Mississippi River, illustrating the network of rivers feeding into one sediment input point. Modified. Copyright: Coleman and Roberts<ref name=Coleman_and_Roberts>Coleman, J. M., and H. H. Roberts, 1991, Mississippi River depositional system: model for the Gulf Coast Tertiary, in D. Goldthwaite, ed., An Introduction to Central Gulf Coast Geology: New Orleans Geological Society, p. 99-121</ref>; courtesy New Orleans Geological Society.]]

 

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.