Schlee.m

Plotting routine for Gravel, Sand, Mud

Description

This script makes a ternary diagram for sand, mud and gravel, assuming
that mud=(silt+clay). The plot is based on Schlee (1973), a modification
on the Shepard (1954) classification system. The Schlee modification
utilizes the same ternary plotting style, but adjusts to include the
larger sized portion of sediments.

This script is a modification of the TERNPLOT script by Carl Sandrock (20020827),
and the 'Shepard.m' written by William (Bill) Waite.
This modification simply adds the labels required for the Schlee diagram.

NOTE: The plotted result may be screen dependent. If this happens,
simply use the magnify tool to zoom in on the plot.

        Gravel
         / \
        / \
    Sand --- Mud

REFRENCES:
Shepard, F.P., 1954, Nomenclature based on
sand-silt-clay ratios: Journal Sedimentary
Petrology, v. 24, p. 151-158.

Schlee, John, 1973, Atlantic Continental Shelf and
Slope of the United States sediment texture of the northeastern part:
U.S. Geological Survey Professional Paper 529-L, 64 p.

Acknowledgements

The author wishes to acknowledge the following in the creation of this submission:
Ternplot, Shepard_Ternary_Plot
This submission has inspired the following:
Folk_S_Classification

• MATLAB release: MATLAB 6.5 (R13)
• Other requirements: None