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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
Classification of Permian Rocks of Western Texas by a Versenate Method of Chemical Analysis
Richard G. Guerrero, Charles T. Kenner
ABSTRACT
There is much confusion regarding the classification of the more common carbonate rocks of the limestone-dolomite series and the combinations of these with silt or clay. A modification of Pettijohn's quantitative scheme is applied to Permian rock samples (FOOTNOTE 2) by the use of a versenate method of chemical analysis. In the Permian rocks of the Malone Mountains, the Black Brecciated limestone is actually a dolomite and the Buff limestone a mixture of calcitic dolomite, dolomite, and dolomitic limestone. Likewise, some of the rocks in the Permian system of the Finlay Mountains that have been called "limestones" are in reality dolomitic limestone, while certain "shales" are consolidated dolomitic limestone marls.
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