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Mississippi Valley Archaeology Center

Heavy Fraction

January 27, 2016

Heavy FractionPictured is a heavy fraction sample while it is being rinsed. The fine soil has already been washed away. Besides bits of rock or sand, the heavy fraction contains stone flakes, pottery fragments, pieces of animal bone and shell, and anything else that doesn’t float. Using a fine mesh ensures that even small artifacts are recovered. See also flotation and light fraction.