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What is the method for arriving at the Shepard and Folk classes?

April 26, 2017classes folk method shepard

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What is the method for arriving at the Shepard and Folk classes?

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The original Shepard (1954) and Folk (1954) ternary classifications have had to be modified in a couple of ways: (a) where the silt and clay breakdown of mud is not available, the silt-clay domains in the classifications are merged under one name; and (b) because these schemes refer only to sediments, an extra class SOLID is added for dbSEABED to classify all lithified materials (rock). The aim of (a) was to have a class attached to a greater number of samples. Very few samples in the database have silt:clay specified.