New Discovery of Oligocene Strata in the Topernawi Formation, Turkana County, Kenya

New field observations and 40Ar/39Ar geochronology reveal that the Topernawi Formation of the Ekitale Basin, northern Turkana Depression, Turkana County, Kenya was deposited entirely during the Oligocene between 29.7 ± 0.5 Ma and 29.24 ± 0.08 Ma. These bracketing ages are determined via new 40Ar/39A...

Full description

Bibliographic Details

Published in:	Frontiers in Earth Science
Main Authors:	Francis J. Sousa, Stephen E. Cox, Sidney R. Hemming, E. Troy Rasbury, Elena Steponaitis, Kevin Hatton, Mae Saslaw, Gregory Henkes, Patricia Princehouse, Natasha S. Vitek, Isaiah Nengo
Format:	Article
Language:	English
Published:	Frontiers Media S.A. 2022-02-01
Subjects:	East Africa rift system oligocene hominid evolution stratigraphy geochronology Turkana basin
Online Access:	https://www.frontiersin.org/articles/10.3389/feart.2022.799097/full