1. Mineral Resources
  2. Online Spatial Data
  3. Basement domains of the conterminous US and Alaska
XML
JSON

Walrus-Togiak

Basement domain in the Alaska

Geologic information

Region Alaska
Crust
Formation age: 225-135 Ma
Accretion
Type: Collisional
Age: 135-115 Ma
Notes Walrus arc

Geographic extent

Bethel, Dillingham

Bibliographic references

Box, S.E., Moll-Stalcup, E.J., Frost, T.P., and Murphy, J.M., 1993, Preliminary geologic map of the Bethel and southern Russian Mission quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map M-2226–A, scale 1:250,000, 20 p.Decker, John, Bergman, S.C., Blodgett, R.B., Box, S.E., Bundtzen, T.K., Clough, J.G., Coonrad, W.L., Gilbert, W.G., Miller, M.L., Murphy, J.M., Robinson, M.S., and Wallace, W.K., 1994, Geology of southwestern Alaska, in Plafker, George, and Berg, H.C., eds., The geology of Alaska: Geological Society of America Geology of North America, v. G-1, p. 285–310.Miller, M.L., Bradley, D.C., Bundtzen, T.K., Blodgett, R.B., Pessagno, E.A., Jr., Tucker, R.D., and Harris, A.G., 2007, The restricted Gemuk Group—A Triassic to Lower Cretaceous succession in southwestern Alaska, in Ridgway, K.D., Trop, J.M., Glen, J.M.G., and O’Neill, J.M., eds., Tectonic growth of a collisional continental margin: Crustal evolution of southern Alaska: Geological Society of America Special Paper 431, p. 273–305.