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The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)


Journal of Sedimentary Petrology
Vol. 43 (1973)No. 4. (December), Pages 1143-1147

Environmental Determination Using Hydraulic Equivalence Studies

Richard H. Lowright


Past studies of hydraulic equivalence in sands have shown that it is possible to distinguish between beach and dune deposits and to differentiate between suspension and traction load deposits in streams on the basis of light and heavy mineral settling velocity distributions.

This study is a comparison of settling velocity distributions in the environments mentioned above with those for sands from the shallow nearshore zone. The results of the investigation show that data from shallow nearshore samples overlaps that from samples from all the other environments. Therefore, environmental discrimination on the basis of a single sample is not possible using this method. However, if several samples collected from the same stratigraphic unit throughout a large area were analyzed, it should be possible to determine the environment of deposition of the sands.

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