Skip navigation
Skip navigation

Sapropels and the age of hominins Omo I and II, Kibish, Ethiopia

McDougall, Ian; Brown, F H; Fleagle, John

Description

The provenance and age of two Homo sapiens fossils (Omo I and Omo II) from the Kibish Formation in southern Ethiopia have been much debated. Here we confirm that Omo I and the somewhat more primitive-looking Omo II calvariae are from similar stratigraphic levels in Member I of the Kibish Formation. Based on 40Ar/39Ar age measurements on alkali feldspar crystals from pumice clasts in the Nakaa'kire Tuff, a tuffaceous bed in Member I just below the hominin levels, we place an older limit of 198 ±...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/34793
Source: Journal of Human Evolution
DOI: 10.1016/j.jhevol.2008.05.012

Download

File Description SizeFormat Image
01_McDougall_Sapropels_and_the_age_of_2008.pdf795.82 kBAdobe PDF    Request a copy


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  20 July 2017/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator