Radial drainage => prominant mountain/hill (volcano) in center Deltas Form where rivers/streams empty into large bodies of standing water Current dies => deposition of sediment creates delta Coarsest materials dropped first => nearly horizonatal topset beds Finer material carried into deeper warer => inclined foreset beds Finest material carried farthest => bottomset beds Delta sediments block flow and river splits into distributaries branching over delta Deltas are long-lived features Mississippi delta (growing for over 150 million years) has advanced 1600 km!
(Finest material; carried; farthest) (Delta sediments block flow and river; has advanced; 1600 km) Context(Delta sediments block flow and river has advanced,List([375, 558))):(Radial drainage => prominant mountain/hill; creates; delta Coarsest materials dropped first) Context(Delta sediments block flow and river has advanced,List([375, 558))):(Delta sediments; block; flow and river) (inclined foreset beds; are growing; T:for over 150 million years) (bottomset beds; splits; into distributaries) (delta Coarsest materials; dropped; T:first) (distributaries; branching; ) (nearly horizonatal topset beds; carried; into deeper warer)
Delta sediments block flow and river has advanced,List([375, 558)) Delta sediments block flow and river has advanced,List([375, 558))
Finest material Delta sediments block flow and river Radial drainage => prominant mountain/hill Delta sediments inclined foreset beds bottomset beds delta Coarsest materials distributaries nearly horizonatal topset beds
carried has advanced creates block are growing splits dropped branching carried
farthest
1600 km
delta Coarsest materials dropped first
flow and river
T:for over 150 million years
into distributaries
T:first
into deeper warer