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  3. Basement domains of the conterminous US and Alaska
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Peninsular-Iliamna

Basement domain in the Alaska

Geologic information

Region Alaska
Crust
Formation age: 310 Ma
Accretion
Type: Collisional
Age: 80 Ma
Notes Peninsula arc

Geographic extent

Bristol Bay, Kenai Peninsula, Lake and Peninsula, Matanuska-Susitna

Bibliographic references

Reed, B.L., and Lanphere, M.A., 1973, The Alaska-Aleutian Range batholith—Geochronology, chemistry, and relation to Circum-Pacific plutonism: Geological Society of America Bulletin, v. 84, p. 2583–2610.Detterman, R.L., Miller, J.W., Case, J.E., Wilson, F.H., and Yount, M.E., 1996, Stratigraphic framework of the Alaska peninsula: U.S. Geological Survey Bulletin 1969-A, 74 p.Bacon, C.R., Vazquez, J.A., and Wooden, J.L., 2012, Peninsular terrane basement ages recorded by Paleozoic and Paleoproterozoic zircon in gabbro xenoliths and andesite from Redoubt volcano, Alaska: Geological Society of America Bulletin, v. 124, p. 24–34.