|Name||Carboniferous-Permian sedimentary and volcanic rocks|
|Geologic age||Devonian to Permian; some Jurassic|
Sedimentary > Clastic > Sandstone > Graywacke (Bed)
Sedimentary > Chemical > Chert (Bed)
Metamorphic > Metaigneous > Greenstone
Sedimentary > Clastic > Siltstone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Metamorphic > Metasedimentary > Metaclastic > Argillite
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Sedimentary > Clastic > Sandstone > Arkose (Bed)
Igneous > Volcanic > Mafic-volcanic > Andesite (Flow)
Sedimentary > Carbonate > Limestone (Bed)
Metamorphic > Metasedimentary > Metaclastic > Slate
Sedimentary > Clastic > Conglomerate (Bed)
Metamorphic > Metasedimentary > Metaclastic > PhyllitePossibly minor in rank.
Metamorphic > Metasedimentary > Metacarbonate > Marble
|Comments||Dragovich and others, 2002, reports that this unit is mostly metamorphosed sedimentary rocks of the types listed above.|
|Stratigraphic units||Chilliwack Formation (in part); Cultus Formation (in part); Hozomeen Group (in part); Bell Pass melange (in part)|
Huntting, M.T., Bennett, W.A.G., Livingston, V.E.Jr., and 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.
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.
|Counties||Columbia - Skagit - Whatcom|