Intra-Lamina Grain Size distributions: Heavy and Light Minerals from Subaerial and Subaqueous Grain Flow Deposits.

摘要

This report contains data on the grain-size frequency distributions of quartz (p = 2.65 gm/cm ) and heavy minerals (p = 3.1 - 3.3 gm/cm ) found within a subaerial grain-flow lamination generated in the laboratory and a beach foreshore lamination. Samples were obtained at many horizons within each lamination so that the vertical variations ot grain size and density could be investigated. The data were previously used to explain how inverse size grading develops and to verify a hydraulic equivalence relationship for grain flows (Sallenger, 1979). The statistical data are published here so that other investigators may use the data to test different models of hydraulic equivalence.