KBS tuff dating and geochronology of tuffaceous sediments in the Koobi Fora and Shungura Formations, East Africa

Auteurs :
DRAKE, R. E.
CURTIS, G. H.
CERLING, T. E.
CERLING, B. W.
HAMPEL, J.

Description :
We report here new K-Ar dates and revised values for previously published dates which give a mean age of 1.80.1 Myr for the KBS Tuff. This estimate suggests contemporaneity between the KBS Tuff and Tuff Units Hr and Hx in the Shungura Formation, lower Omo River Basin, Ethiopia, and with BI at Olduvai Gorge. (Extr. des AA.).


Type de document :
Article de périodique

Source :
Nature London, 1980, vol. 283, n°. 5745, p. 368-372, Références bibliographiques : 23 réf.

Date :
1980