Environments of Accumulation (II)
Transitional - supply of sediment may be high (at the mouth of a river) and preservation potential is usually high.
Marine - preservation potential is high but the supply of sediment may be low.
Much of the sedimentary section on Earth accumulated in the Transition Zone - deltas, barrier islands, beaches ...
Geologists study modern sediments to try and see what imprint the environment of deposition leaves on the sediment.