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Gademotta Formation

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Journal Article
Journal: GSA Bulletin
Published: 01 July 1975
GSA Bulletin (1975) 86 (7): 999–1011.
...ROBERT L. LAURY; CLAUDE C. ALBRITTON, JR. Abstract On a ridge west of Lake Ziway, northernmost of the Galla Lakes, rich Middle Stone Age sites are present in paleosols of the late Pleistocene Gademotta Formation. The underlying rocks are of alkali rhyolite and tuff, the eruption of which commenced...
Image
Geographic and stratigraphic placement of archaeology at <b>Gademotta</b> and Kulk...
Published: 01 December 2008
Figure 1. Geographic and stratigraphic placement of archaeology at Gademotta and Kulkuletti. A: Map showing location of Gademotta and Kulkuletti within Ethiopia. B: Stratigraphic section of Gademotta Formation at type locality. C: Cross section of Gademotta Formation at Kulkuletti. For B and C
Journal Article
Journal: Geology
Published: 01 December 2008
Geology (2008) 36 (12): 967–970.
...Figure 1. Geographic and stratigraphic placement of archaeology at Gademotta and Kulkuletti. A: Map showing location of Gademotta and Kulkuletti within Ethiopia. B: Stratigraphic section of Gademotta Formation at type locality. C: Cross section of Gademotta Formation at Kulkuletti. For B and C...
FIGURES
Image
Artifacts from various African Middle Stone Age (MSA) sites. A: Blade and p...
Published: 01 December 2008
Figure 3. Artifacts from various African Middle Stone Age (MSA) sites. A: Blade and point from Gademotta, Ethiopia Site ETH-72B, dated as older than 276 ka. Reproduced with permission ( Schild and Wendorf, 2005 ). B: Retouched blade and classic MSA point from Aduma, Ethiopia, ca. 80–100 ka
Journal Article
Published: 01 July 2008
American Mineralogist (2008) 93 (7): 1166–1178.
... free of macroscopic ash inclusions and vesicles, and the few existing ones were avoided during sample selection. F igure 4. Petrographic microscope image of the hydration rim on a 149 000 year old obsidian tool from Gademotta Ridge, Ethiopia ( Wendorf et al. 1975 ; Anovitz et al. 1999...
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Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.259.01.16
EISBN: 9781862395077
... ; Coltorti et al. 2002 a ). During MIS 4, from c. 70 to 50 ka, the area was arid and aeolian sediments were deposited ( Coltorti et al. 2002 a ). The Gademotta formation ( Laury & Albritton 1975 ), made up of aeolian sediments and colluvial deposits, corresponds to this Stage but K/Ar dates...
FIGURES | View All (10)