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Geochemistry of the Fejej Tuffs (South Omo, Ethiopia), their Tephrostratigraphical Correlation with Plio-Pleistocene Formations in the Omo-Turkana Basin
- Source :
-
Comptes Rendus Palevol . May2011, Vol. 10 Issue 4, p251-258. 8p. - Publication Year :
- 2011
-
Abstract
- Abstract: The FJ-1 Tuff and three additional isolated outcrops of volcanic tuffs listed in the Fejej area (South Omo, Ethiopia) are associated with a single volcanic event and correspond to the same ash deposit subsequently truncated by erosion. Data from new chemical analyses given by X-ray fluorescence allow correlation of these tuffs with the Borana Tuff of the Koobi Fora Formation, which is itself correlated with a tuff in the Upper G member or with the H-1 tuff of the Shungura formation. The geochronological assessment of this tephra is in agreement with previous magnetostratigraphical and biostratigraphical studies, attributing the Fejej FJ-1 Tuff to between 1.95 to 1.90Ma. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 16310683
- Volume :
- 10
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Comptes Rendus Palevol
- Publication Type :
- Academic Journal
- Accession number :
- 61031708
- Full Text :
- https://doi.org/10.1016/j.crpv.2011.02.006