Stratigraphy of the Koobi Fora Formation (Pliocene and Pleistocene) in the Loiyangalani region of northern Kenya

Gathogo, Patrick N., Brown, Francis H. and McDougall, Ian (2005) Stratigraphy of the Koobi Fora Formation (Pliocene and Pleistocene) in the Loiyangalani region of northern Kenya. Journal of African Earth Sciences, 51 5: 277-297. doi:10.1016/j.jafrearsci.2008.01.010


Author Gathogo, Patrick N.
Brown, Francis H.
McDougall, Ian
Title Stratigraphy of the Koobi Fora Formation (Pliocene and Pleistocene) in the Loiyangalani region of northern Kenya
Journal name Journal of African Earth Sciences   Check publisher's open access policy
ISSN 0731-7247
1879-1956
Publication date 2005-08
Sub-type Article (original research)
DOI 10.1016/j.jafrearsci.2008.01.010
Volume 51
Issue 5
Start page 277
End page 297
Total pages 21
Editor P. Eriksson
S. Muhongo
Place of publication Oxford, U.K.
Publisher Permagon
Language eng
Subject 0403 Geology
0404 Geophysics
Formatted abstract
Tuffaceous marker beds in the Loiyangalani region were previously identified as correlative with similar beds in the Shungura and Koobi Fora Formations of southwestern Ethiopia and northwestern Kenya. Associated sedimentary strata correlate with the Koobi Fora Formation, and include intercalated basalt flows. In the Loiyangalani region the Koobi Fora Formation has a composite thickness of at least 257 m, and records one time interval for which no strata are known in the Koobi Fora region. Four members of the Koobi Fora Formation (Lonyumun, Tulu Bor, Burgi, and KBS) are recognized in the region, and a composite member (Moiti-Lokochot) proposed because the Lokochot Tuff, the formal boundary between the Moiti and Lokochot Members has not been identified. This extends the known geographic area of the Koobi Fora Formation 100 km southward. These strata, together with others, were previously termed 'Loiyangalani formation (or Formation)'. Deposition in the Loiyangalani region began at about the same time as in the Koobi Fora and Nachukui Formations. Newly named basalts are Kankam (3.2-3.3 Ma), Lenderit (2.02 to 2.18 ± 0.02 Ma), and Balo (1.79 ± 0.02 Ma). We also report K/Ar ages on basalts from Mt. Kulal (2.04 ± 0.02 to 2.40 ± 0.03 Ma) east of the region and from Serima Gorge (0.77 ± 0.01 Ma) south of the study area.
© 2008 Elsevier Ltd. All rights reserved.
Keyword Kenya
Turkana Basin
Omo Group
Koobi Fora Formation
Stratigraphy
Loiyangalani
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Earth Sciences Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 13 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Thu, 08 Apr 2010, 11:41:36 EST by June Temby on behalf of Faculty of Science