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(Article of periodic en Anglais - 1981)

Document title

Chemistry and mineralogy of some Plio-Pleistocene tuffs from the Shungura Formation, southwest Ethiopia

Authors(s) and Affiliation(s)

MARTZ A. M. ; BROWN F. H. ;

Abstract

Widespread tuffs have made subdivision and detailed mapping of the Shungura formation possible, have provided material for potassium argon dating, and have allowed direct lithostratigraphic correlation with the Koobi Fora Formation in northern Kenya, The basis for correlation between the two formations is the distinctive chemistry of the tuffs, but systematic chemical variation within some tuffs invalidates some statistical correlation techniques. Here chemical analysis of glass separates and minerals from tuffs of the Shungura and Usno Formations are presented which may allow further ties to be established when data become available on other tuffs of the Koobi Fora Formation.

Source

Article of periodic

published at : Quaternary research New York

Editor :

Millesime : 1981, vol. 16, no2 [pp. 240-257]

Bibliographic references : 28 réf.

Language

Anglais

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