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Gona Ethiopia

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Series: GSA Special Papers
Published: 01 December 2008
DOI: 10.1130/2008.2446(02)
... The Gona area includes many rich fossil localities that are of great consequence to the study of human evolution. The Adu-Asa Formation, containing the oldest of these fossils, consists of nearly 200 m of fossil-bearing sedimentary rocks in thin (≤;30 m), laterally variable sections...
Series: GSA Special Papers
Published: 01 December 2008
DOI: 10.1130/2008.2446(10)
... the late Miocene and early Pliocene. To further evaluate the environmental context of Ardipithecus , we present stable carbon isotope data of 182 fossil herbivore teeth from Ardipithecus -bearing fossil deposits in the Gona Paleoanthropological Research Project area, in the Afar region of Ethiopia...
Journal Article
Journal: GSA Bulletin
Published: 01 November 2004
GSA Bulletin (2004) 116 (11-12): 1529-1544.
... 01 2004 20 03 2003 10 12 2003 Geological Society of America 2004 Gona Ethiopia carbon isotopes early hominids Oldowan first stone tools Awash paleoenvironment The Hadar Formation, exposed along the northern Awash River (Fig. 1) , has been the focus of intense...
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Series: GSA Special Papers
Published: 01 December 2008
DOI: 10.1130/2008.2446(01)
... Deposits in the Gona Paleoanthropological Research Project (GPRP) area in east-central Ethiopia span most of the last ~6.4 m.y. and are among the longest and most complete paleoenvironmental and human fossil archives in East Africa. The 40 Ar/ 39 Ar and paleomagnetic dates...
Series: GSA Special Papers
Published: 01 December 2008
DOI: 10.1130/2008.2446(05)
... Mapping and description of the Hadar and Busidima Formations in the northern Awash valley, Ethiopia, have been greatly aided by the use of tephrostratigraphy and tephra correlation in the Dikika, Gona, Hadar, and Ledi-Geraru paleoanthropological project areas. The Hadar Formation contains...
Series: GSA Special Papers
Published: 01 December 2008
DOI: 10.1130/2008.2446(06)
... This paper documents the lithology and geochemistry of vitric tephra deposits from the Pliocene-Pleistocene Hadar and Busidima Formations from the early hominin site of Hadar in Ethiopia. Vitric tephras of the Hadar Formation (ca. 3.45–2.9 Ma) are limited to certain facies of the Sidi Hakoma...
Journal Article
Journal: Geology
Published: 01 June 2007
Geology (2007) 35 (6): 531-534.
... been suggested as the driver for C 4 plant expansion at Gona, Ethiopia, in the early Pliocene from 4.5 to 3 Ma ( Levin et al., 2004 ). Two possible factors may have lead to our observed increase in leaf wax δD values during the late Miocene: (1) increase in the δD of precipitation; and (2) reduction...
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Journal Article
Journal: Geology
Published: 01 December 2005
Geology (2005) 33 (12): 977-980.
... , Plant waxes : Lipids , v. 5 p. 259 - 275 . Levin , N. , Quade , J. , Simpson , S. , Semaw , S. , and Rogers , M. , 2004 , Isotopic evidence for Plio-Pleistocene environmental change at Gona, Ethiopia : Earth and Planetary Science Letters , v. 219 p. 93 - 110...
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Journal Article
Journal: Geology
Published: 01 May 2011
Geology (2011) 39 (5): 435-438.
...-Pleistocene environmental change at Gona, Ethiopia : Earth and Planetary Science Letters , v. 219 , p. 93 – 110 , doi: 10.1016/S0012-821X(03)00707-6 . O'Neil J.R. Roe L.J. Reinhard E. Blake R.E. , 1994 , A rapid and precise method of oxygen isotope analysis of biogenic phosphate...
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Journal Article
Journal: Geology
Published: 01 November 2012
Geology (2012) 40 (11): 1019-1022.
... J.W.K. Feibel C.S. Bernor R.L. Fesseha N. Mowbray K. , 1997 , 2.5-million-year-old stone tools from Gona, Ethiopia : Nature , v. 385 , p. 333 – 336 , doi:10.1038/385333a0 . York D. , 1966 , Least squares fitting of a straight line : Canadian Journal of Physics , v...
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Journal Article
Published: 01 August 2010
Journal of Sedimentary Research (2010) 80 (8): 703-709.
..., Gona, Ethiopia : Geological Society of America, Bulletin , v. 116 , p. 1529 – 1544 . Riding , R. , 2002 , Microbial carbonates: the geological record of calcified bacterial algal mats and biofilms : Sedimentology , v. 47 , p. 179 – 214 . Ruddiman , W.F. , 2000 . Earth’s...
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Journal Article
Published: 23 November 2017
Petroleum Geoscience (2017) 24 (1): 21-40.
... explain the geological constraints’. Figure 2 shows the tight-fit reconstruction as proposed by Leroy et al. (2012) and others, but extended west to show the Precambrian and Mesozoic outcrops in Yemen and Somalia/Ethiopia. The Cretaceous outcrops in the Ali Sabieh region ( Le Gall et al. 2010...
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Journal Article
Published: 01 December 2009
Journal of Sedimentary Research (2009) 79 (12): 906-917.
... Geochemistry : Upper Saddle River, NJ , Prentice-Hall Publishing , 600 p. Levin , N.E. , Quade , J. , Simpson , S.W. , Semaw , S. , and Rogers , M. , 2004 , Isotopic evidence for Plio-Pleistocene environmental change at Gona, Ethiopia : Earth and Planetary Science Letters , v...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2012
GSA Bulletin (2012) 124 (3-4): 611-625.
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Journal Article
Journal: Paleobiology
Published: 01 February 2011
Paleobiology (2011) 37 (1): 50-71.
... of terrestrial ecosystems : Proceedings of the National Academy of Sciences USA , 105 . 449 – 453 . Levin , N. E. , 2004 , Isotopic evidence for Plio-Pleistocene environmental change at Gona, Ethiopia : Earth and Planetary Science Letters , 219 . 93 – 110 . MacFadden , B. J. , Cerling...
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Journal Article
Published: 01 February 2010
Journal of Sedimentary Research (2010) 80 (2): 137-150.
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Journal Article
Journal: Geosphere
Published: 01 October 2007
Geosphere (2007) 3 (5): 337-365.
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2007
GSA Bulletin (2007) 119 (11-12): 1486-1505.
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Journal Article
Journal: PALAIOS
Published: 01 September 2009
PALAIOS (2009) 24 (9): 553-567.
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Series: Geological Society, London, Special Publications
Published: 01 January 2005
DOI: 10.1144/GSL.SP.2005.247.01.17
EISBN: 9781862394957
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