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The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)


Journal of Sedimentary Petrology
Vol. 33 (1963)No. 4. (December), Pages 914-918

Mineral Composition and Texture in Graywackes from the Harz Mountains (Germany) and in Arkoses from the Auvergne (France)

Hans Gerhard Huckenholz


Mineral, chemical, and textural compositions of classical graywackes from the Harz Mountains (Germany) and of classical arkoses from the Auvergne (France) are discussed. The type graywackes cannot be defined by the presence of a matrix; nor does the presence of granitic rock fragments or the absence of other rock fragments characterize the type arkoses. Both rock types may be distinguished only by their total mineral and chemical compositions.

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