| − | '''Sediment''' is eroded material deposited on the Earth by water, ice, or air.<ref>Stanley, Dr. Steven M. ''Earth System History 2nd Edition''. W.H. Freeman and Company, New York, 2005.</ref> Sediments are found in a wider variety of settings: from desert dunes, river deltas, mountain ranges, and even the deep sea floor<ref>ibid</ref>. After enough grains have accumulated in the depositional environment, one of two different processes may occur and cause the formation of [[Sedimentary Rock]]. Either compressional forces will bond the sediment grains together, or other minerals may bond the grains together by precipitating between them from water sources flowing through the sedimentary environment.
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