AMS radiocarbon age of the Upper Mississippi Valley Roxana silt

Auteurs :
LEIGH, D. S.
KNOX, J. C.

Description :
Accelerator mass spectrometer radiocarbon ages of the Roxana Silt (Loess) along the Upper Mississippi Valley of Wisconsin and Minnesota indicate that loess sedimentation of the Roxana Silt occurred between about 55,000 and 27,000 14C yr B.P. The bracketing ages for the Upper Mississippi Valley Roxana Silt indicate that the Mississippi River valley was receiving outwash sedimentation between 55,000 and 27,000 14C yr B.P.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1993, vol. 39, n°. 3, p. 282-289, Collation : Illustration, Références bibliographiques : 33 réf.

Date :
1993

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