Carboniferous-Permian sedimentary and volcanic rocks (WACP;0)

State	Washington
Name	Carboniferous-Permian sedimentary and volcanic rocks
Geologic age	Devonian to Permian; some Jurassic
Original map label	PMPm
Comments	Dragovich and others, 2002, reports that this unit is mostly metamorphosed sedimentary rocks of the types listed above.
Primary rock type	graywacke
Secondary rock type	siltstone
Other rock types	greenstone; phyllite; chert; argillite; arkose; shale; andesite; spilite; limestone; marble; quartzite; slate; conglomerate
Lithologic constituents	Major Sedimentary > Clastic > Sandstone > Graywacke (Bed) Minor Metamorphic > Quartzite Sedimentary > Clastic > Mudstone > Shale (Bed) Metamorphic > Argillite Sedimentary > Chemical > Chert (Bed) Metamorphic > Greenstone Sedimentary > Clastic > Siltstone (Bed) Incidental Sedimentary > Clastic > Conglomerate (Bed) Metamorphic > Slate Sedimentary > Carbonate > Limestone (Bed) Igneous > Volcanic > Mafic-volcanic > Andesite (Flow) Sedimentary > Clastic > Sandstone > Arkose (Bed) Metamorphic > PhyllitePossibly minor in rank. Metamorphic > Marble
Map references	Huntting, M. T., Bennett, W. A. G., Livingston, V. E. Jr., Moen, W. S., 1961, Geologic Map of Washington: Washington Division of Mines and Geology, scale 1:500,000.
Unit references	Huntting, M. T., Bennett, W. A. G., Livingston, V. E. Jr., Moen, W. S., 1961, Geologic Map of Washington: Washington Division of Mines and Geology, scale 1:500,000. Misch, P., 1977, Bedrock Geology of the North Cascades, in Brown, E. H. and Ellis, R. C. (eds.), Geological Excursions in the Pacific Northwest, Geological Society of America 1977 Annual Meeting, Seattle: Western Washington University, p. 1-62. Dragovich, J. D., Logan, R. L., Schasse, H. W., Walsh, T. J., Lingley, W. S., Jr., Norman, D. K., Gerstel, W. J., Lapen, T. J., Schuster, J. E., Meyers, K. D., 2002, Geologic Map of Washington-Northwest Quadrant: Washington Division of Geology and Earth Resources Geologic Map GM-50, scale 1:250,000. Tabor, R. W., Haugerud, R. A., Booth, D. B., Brown, E. H., 1994, Preliminary Geologic Map of the Mount Baker 30- by 60-Minute Quadrangle, Washington: U. S. Geological Survey Open File Report 94-403, 55p., 2 pls. [http://pubs.er.usgs.gov/publication/ofr94403] Misch, P., 1966, Tectonic evolution of the northern Cascades of Washington--A west-cordilleran case history. In Canadian Institute of Mining and Metallurgy; and others, A symposium on the tectonic history and mineral deposits of the western Cordillera in British Columbia and neighboring parts of the United States, Vancouver, 1964: Canadian Institute of Mining and Metallurgy Special Volume 8, p. 101-148, 1 pl.
Geographic coverage	Columbia - Skagit - Whatcom