Uranium-series ages of travertines and timing of the last glaciation in the northern Yellowstone area, Wyoming-Montana

Auteurs :
STURCHIO, N.C.
PIERCE, K.L.
MURRELL, M.T.
SOREY, M.L.

Description :
Uranium-series age determinations by mass spectrometric methods were done for travertines and associated carbonate veins related to clastic deposits of the last glaciation (Pinedale) in the northern Yellowstone area. Dramatic variations in the hydrologic head are inferred from variations in the elevation of travertine deposition with time and are consistent with the expected hydrologic effects of glaciation. The AA. determine the chronology of the Pinedale Glaciation which is consistent with the general trend of climatic changes in the northern hemisphere.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1994, vol. 41, n°. 3, p. 265-277, Collation : Illustration, Références bibliographiques : 46 ref.

Date :
1994

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier