Stratigraphy of the Adu-Asa Formation

Giday Woldegabriel, William K. Hart, Paul R. Renne, Yohannes Haile-Selassie and Tim White

in Ardipithecus kadabba

Published by University of California Press

Published in print June 2009 | ISBN: 9780520254404
Published online March 2012 | e-ISBN: 9780520942509 | DOI:
Stratigraphy of the Adu-Asa Formation

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The late Miocene Adu-Asa Formation comprises major sedimentary and volcanic units that crop out along the densely faulted and tilted frontal blocks of the western rift margin of the transition zone between the northern Main Ethiopian Rift (MER) and the southern Afar Rift. This chapter discusses the geological and tectonic processes that led to the origin and evolution of the rift basin of the transition zone. It highlights a decade-long geological and paleontological reconnaissance and focuses investigation along the strike of the frontal fault blocks of the western rift margin of the Middle Awash study area.

Keywords: Adu-Asa Formation; western rift margin; transition zone; Main Ethiopian Rift; MER; Afar Rift; rift basin; fault blocks

Chapter.  13979 words.  Illustrated.

Subjects: Evolutionary Biology

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