Arkose

Arkose
Sedimentary rock
Arkose with K-feldspar (pinkish-orangish) and quartz (gray) grains
Composition
>25% feldspar

Arkose (/ˈɑːrkoʊs, -koʊz/) or arkosic sandstone[1] is a detrital sedimentary rock, specifically a type of sandstone containing at least 25% feldspar.[2][3] Arkosic sand is sand that is similarly rich in feldspar, and thus the potential precursor of arkose.

  1. ^ Jackson, Julia A., ed. (1997). "arkosic sandstone". Glossary of Geology (4th ed.). Alexandria, Virginia: American Geological Institute. ISBN 0922152349.
  2. ^ Folk, R. L. (1974). Petrology of Sedimentary Rocks. Hemphill. ISBN 0-914696-14-9. Archived from the original on 2006-02-14. Retrieved 2007-05-05.
  3. ^ Stow, D. A. V. (2005). Sedimentary Rocks in the Field. Manson. ISBN 1-874545-69-3.