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Yukon-Tanana upper

Basement domain in the Alaska

Geologic information

Region Alaska
Crust
Formation age: 700-350 Ma
Accretion
Type: Collisional/StrSlip
Age: 215 Ma
Notes Continental rise, Laurentian origin

Geographic extent

Southeast Fairbanks, Yukon-Koyukuk

Bibliographic references

Dusel-Bacon, Cynthia, and Williams, I.S., 2009, Evidence for prolonged mid-Paleozoic plutonism and ages of crustal sources in east-central Alaska from SHRIMP U-Pb dating of syn-magmatic, inherited and detrital zircon: Canadian Journal of Earth Sciences, v. 46, p. 21–39.Piercey, S.J., and Colpron, M., 2009, Composition and provenance of the Snowcap assemblage, basement to the Yukon-Tanana terrane, northern Cordillera: Implications for Cordilleran crustal growth, Geosphere, v. 5, p. 439–464.