Mineral Resources
Online Spatial Data
Basement domains of the conterminous US and Alaska
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Peninsular-Tlikakila
Basement domain in the Alaska
Geologic information
Region
Alaska
Crust
Type:
Accretionary wedge
Formation age:
180 Ma
Accretion
Type:
Underthrusting
Age:
80 Ma
Notes
Forearc fragment, Penninsula arc
Geographic extent
Bristol Bay
,
Kenai Peninsula
,
Lake and Peninsula
,
Matanuska-Susitna
Bibliographic references
Wallace, W.K., Hanks, C.L., and Rogers, J.F., 1989, The southern Kahiltna terrane—Implications for the tectonic evolution of southwestern Alaska: Geological Society of America Bulletin, v. 101, p. 1389–1407.
Amato, J.M., Bogar, M.J., Gehrels, G.E., Farmer, G.L., and McIntosh, W.C., 2007, The Tlikakila complex in southern Alaska—A suprasubduction-zone ophiolite between the Wrangellia Composite terrane and North America, 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. 227–252.