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The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)

Abstract


Journal of Sedimentary Petrology
Vol. 31 (1961)No. 4. (December), Pages 634-636

Clay and Peat Boulders: NOTES

William F. Tanner

ABSTRACT

Soft-particle conglomerates contain pebbles, cobbles, and even large boulders of clay, peat, or other materials which were more or less plastic at the time of deposition. A Tertiary example in Alabama and a Pennsylvanian example in Arkansas are cited. A study of modern coasts reveals that rounded boulders of clay and peat are produced along the seaward edge of the chenier plain. Although other mechanisms are available to account for such conglomerates, it is thought that most of the lithified examples represent coastal deposits. Beachrock is a member of the same class of sediments.


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