Abstract
In this article the author attempts to formulate a system of classification of sedimentary rocks according to genetic criteria. After reviewing earlier attempts at classification based on such criteria and noting their deficiencies, the author presents what in his judgment constitute the primary requirements for such a system of classification. Basic genetic classes of sedimentary rocks are defined on the basis of the origin of their components. Within each principal group two subgroups are distinguished. The subgroups are further divided into types and varieties according to specific criteria. The author notes some of the problems which arise in applying any theoretical classification to reality. A table is included which summarizes the proposed classification. — Scripta Technica, Inc.
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