The hominid-bearing Plio-Pleistocene sequence of the west central Afar sedimentary basin in Hadar contains 120-140 m of fossiliferous lacustrine and lake margin sediments. The Hadar sequence is described and divided into four members. The mammalian fauna indicates an age of ∼ 3.0 Myr which is confirmed under the Hadar formation by K-Ar determinations on a basalt.
|Original language||English (US)|
|Number of pages||5|
|State||Published - Dec 1 1976|
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