Pre-Carboniferous crystalline complex (WApMm;0)

State	Washington
Name	Pre-Carboniferous crystalline complex
Geologic age	Devonian
Lithologic constituents	Major Metamorphic > Amphibolite Metamorphic > GneissIncludes orthogneiss, migmatic gneiss, and tonalite gneiss. Incidental Igneous > Plutonic > Gabbroic > GabbroIncludes metagabbro. Igneous > Plutonic > Ultramafic > Pyroxenite Metamorphic > Schist > Amphibole-schistIncludes amphibole schist. Igneous > Plutonic > Dioritic > Quartz-dioriteMostly meta-quartz diorite. Metamorphic > Metaigneous > MetavolcanicIncludes meta-andesite and greenstone. Igneous > Plutonic > Granitic > Tonalite > Trondhjemite
Comments	Includes orthogneiss, granite, and marble with minor pyroxenite, greenstone, meta-quartz diorite, and hornblendite in the northern Cascade Mountains (Yellow Aster Complex) (Dragovich and others, 2002). Amphibolite with minor schist, metadiorite, metagabbro, and tonalite gneiss in Kittatas County (Walsh and others, 1987). Metaplutonic rocks are listed as their protoliths below but specified as partially metamorphosed in the lithology coding comments.
Stratigraphic units	Yellow Aster Complex (in part)
References	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. Walsh, T.J., Korosec, M.A., Phillips, W.M., Logan, R.T., Schasse, H.W., 1987, Geologic Map of Washington-Southwest Quadrant: Washington Division of Geology and Earth Resources, Geologic Map GM-34, scale 1:250,000. 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. Tabor, R.W., Frizzell, V.A.,Jr., Booth, D.B., Waitt, R.B., Whetten, J.T., Zartman, R.E., 1993, Geologic Map of the Skykomish River 30- by 60-Minute Quadrangle, Washington: U. S. Geological Survey Miscellaneous Investigations Series Map I-1963, scale 1:100,000. 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.
NGMDB product	NGMDB product page for 30777
Counties	King - Kittitas - Skagit - Snohomish - Whatcom

State

Washington

Name

Pre-Carboniferous crystalline complex

Geologic age

Devonian

Lithologic constituents

Major

Metamorphic > Amphibolite

Metamorphic > GneissIncludes orthogneiss, migmatic gneiss, and tonalite gneiss.

Incidental

Igneous > Plutonic > Gabbroic > GabbroIncludes metagabbro.

Igneous > Plutonic > Ultramafic > Pyroxenite

Metamorphic > Schist > Amphibole-schistIncludes amphibole schist.

Igneous > Plutonic > Dioritic > Quartz-dioriteMostly meta-quartz diorite.

Metamorphic > Metaigneous > MetavolcanicIncludes meta-andesite and greenstone.

Igneous > Plutonic > Granitic > Tonalite > Trondhjemite

Comments

Includes orthogneiss, granite, and marble with minor pyroxenite, greenstone, meta-quartz diorite, and hornblendite in the northern Cascade Mountains (Yellow Aster Complex) (Dragovich and others, 2002). Amphibolite with minor schist, metadiorite, metagabbro, and tonalite gneiss in Kittatas County (Walsh and others, 1987). Metaplutonic rocks are listed as their protoliths below but specified as partially metamorphosed in the lithology coding comments.

Stratigraphic units

Yellow Aster Complex (in part)

References

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.

Walsh, T.J., Korosec, M.A., Phillips, W.M., Logan, R.T., Schasse, H.W., 1987, Geologic Map of Washington-Southwest Quadrant: Washington Division of Geology and Earth Resources, Geologic Map GM-34, scale 1:250,000.

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.

Tabor, R.W., Frizzell, V.A.,Jr., Booth, D.B., Waitt, R.B., Whetten, J.T., Zartman, R.E., 1993, Geologic Map of the Skykomish River 30- by 60-Minute Quadrangle, Washington: U. S. Geological Survey Miscellaneous Investigations Series Map I-1963, scale 1:100,000.

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.

NGMDB product

NGMDB product page for 30777

Counties

King - Kittitas - Skagit - Snohomish - Whatcom