Deposition What is deposition Deposition the process by
Deposition What is deposition?
Deposition- the process by which sediments are released, settled from, or dropped from an erosional system n In deposition, materials are placed in locations where they may form beds or layers of sedimentary rock n
Factors Causing Deposition n Velocity of an erosional system decrease As wind slows down it can not hold blow sediment anymore so it is deposited n As a stream slows down sediment can not be suspended so it falls to the stream bed n
Factors Causing Deposition n The sediments themselves determine how fast they are deposited Size- larger sediment will settle faster n Shape- rounder sediments will settle faster and flatter sediments will take longer n Density- sediment that is more dense will settle faster n
Sorting of Sediment During deposition sediments of similar size, shape, and density get separated or sorted by types n Sorted Sediment- layers of sediment that are similar in size or shape or density n
Sorting of Sediment n Unsorted Sediment- layers of sediment that are mixed in size, shape, and density
Sorting of Sediment n Horizontal Sorting- when the velocity of a wind or water erosional system gradually decreases, the larger more dense particles settle out first n Size, roundness, and density gradually decrease as you move farther out
Sorting of Sediment
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