Sedimentation of the Shelf

One major source of marine sedimentation comes from the forces of weathering and erosion as they break down the continents and transport the resulting sediments to the ocean. On the right is a picture of the Mississippi River Delta where the river empties into the Gulf of Mexico. The brown dust is sediment deposits.

What do you think the sediment near the Mississippi River Delta is made up of? Make a list of the different types and sizes of sediments you might find near the mouth of the river there. Include the source for these sediments as well.