Jump to content

Talkeetna Formation

Coordinates: 57°42′N 155°24′W / 57.7°N 155.4°W / 57.7; -155.4
From Wikipedia, the free encyclopedia
Talkeetna Formation
Stratigraphic range: Sinemurian-Toarcian
~199–175 Ma
Map of the region around Mount Redoubt; Jtk is the Talkeetna Formation (around the estuary of the Drift River)
TypeFormation
Lithology
PrimarySandstone
OtherSiltstone
Location
Coordinates57°42′N 155°24′W / 57.7°N 155.4°W / 57.7; -155.4
Approximate paleocoordinates10°48′N 82°18′W / 10.8°N 82.3°W / 10.8; -82.3
RegionAlaska
Country United States
Type section
Named forTalkeetna Mountains

The Talkeetna Formation is a geologic formation in Alaska. It preserves fossils dating back to the Early Jurassic period.[1]

See also

[edit]

References

[edit]

Further reading

[edit]
  • A. H. Caruthers and P. L. Smith. 2012. Pliensbachian ammonoids from the Talkeetna Mountains (Peninsular Terrane) of Southern Alaska. Revue de Paléobiologie, Genève, vol. spéc 11:365-378
  • M. R. Sandy and R. B. Blodgett. 2000. Early Jurassic spiriferid brachiopods from Alaska and their paleogeographic significance. PaleoBios 33(3):319-328
  • J. Pálfy, P. L. Smith, J.K. Mortensen and R.M. Friedman. 1999. Integrated ammonite biochronology and U-Pb geochronometry from a basal Jurassic section in Alaska. Geological Society America Bulletin 111(10):1537-1549
  • G. K. Jakobs. 1997. Toarcian (Early Jurassic) ammonoids from western North America. Geological Survey of Canada, Bulletin 428:1-137