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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
Stages of Textural Maturity in Sedimentary Rocks
Robert L. Folk
ABSTRACT
Four stages of textural maturity in sediments are defined by the occurrence of three sequential events (1) removal of clays, (2) sorting of the sand fraction, and (3) attainment of high roundness. A binomial terminology is introduced wherein the term denoting textural maturity is prefixed to the rock-composition name, obtained from the mineralogy of the silt-sand-gravel portion (e.g., "submature graywacke").
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