ABSTRACT
Sieve-analysis data from more than 700 sand samples collected from recent dunes and beaches, and from the St. Peter, Navajo, Wyopo, and Tensleep sandstones are used, following a simple procedure, to classify the sand samples as F or C. The ratio of the number of F samples to the number of C samples from a locality or formation gives its F:C ratio.
The F:C ratio for recent dune sand is relatively high; that for modern beach sand intermediate; and for the sandstone formations lowest of all three. The F:C ratio data indicate that the last environment of deposition of the four sandstones studied was not eolian.
You do not have access to this content, please speak to your institutional administrator if you feel you should have access.