Origin of the late Quaternary dune fields of northeastern Colorado

Special Issue. Response of aeolian processes to global change

Auteur(s) et Affiliation(s)



Description :
Stabilized eolian deposits, mostly parabolic dunes and sand sheets, cover much of the landscape of northeastern Colorado and adjacent parts of southwestern Nebraska in four geographically distinct dune fields. Stratigraphic and soil geomorphic relations and accelerator radiocarbon dating indicate that at least three episodes of eolian sand movement occurred beween 27 ka and 11 ka, possibly between 11 ka and 4 ka, and within the past 1,5 ka. Thus, eolian sand deposition took place under both glacial and interglacial climatic conditions.


Type de document :
Congrès

Source :
Workshop on Response of Aeolian Processes to Global Change, Zzyzx, Etats-Unis, 1994-03-24, Geomorphology (Amsterdam), issn : 0169-555X, 1996, vol. 17, n°. 1-3, p. 129-149, Collation : Illustration, Références bibliographiques : 70 ref.

Date :
1996

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier