The Geologic Context of Korsi Dora and the Partial Skeleton KSD-VP-1/1

Saylor, Beverly Z.; Alene, Mulugeta; Deino, Alan L.; Gibert, Luís; Haile‐Selassie, Yohannes; Melillo, Stephanie M.; Scott, G. R.

doi:10.1007/978-94-017-7429-1_2

Cited by 4 publications

(8 citation statements)

References 22 publications

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“…The KT is the highest tuff present at Aralee Issie, but at Mesgid Dora and Makah Mera, as well as at Am-Ado and Korsi Dora (Fig. 4), the sections include tuffs above KT (Haile-Selassie et al, 2010a,b;Saylor et al, 2016). The highest stratigraphic level examined in this study 8 analytical effects can be reduced by using a defocused beam with a large spot size (e.g.…”

Section: Methodsmentioning

confidence: 74%

“…KSD-13-1 is a lapillistone tuff, which, based on geologic mapping and correlation across fault blocks at Korsi Dora, is interpreted to be about 10 m below KT (Figs. 1 and 4) (Haile-Selassie et al, 2012;Saylor et al, 2016).…”

Section: Mesgid Dora Tuff (Mdt)mentioning

confidence: 99%

“…1C and 4). Glass geochemical data have been used to correlate the dated samples (WM-KSD-1&3) with exposures of KT at the top of the ARI-5 section (ARI-08-5), at Makah Mera (MKM-08-13), and across different fault blocks at Korsi Dora (KSD-09-8, WM-KSD-1&3), and also to correlate these samples with the Lokochot Tuff of the Turkana Basin (Deino et al, 2010;Saylor et al, 2016). New data are reported for vitric ash beds at Am-Ado and Kerare.…”

Section: Kilaytoli Tuff (Kt)mentioning

confidence: 99%

“…4C). The WMC-MSD-MKM composite section overlies the Mille basalt with a whole rock 40 Ar/ 39 Ar age of 3.82 ± 0.18 Ma and extends upward to include the Kilaytoli Tuff (KT), a correlate of the Lokochot Tuff in the Omo-Turkana Basin of Kenya and southern Ethiopia (Deino et al, 2010), as well as more recently recognized tuffs above it (Haile-Selassie et al, 2010a;Saylor et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Glass geochemical data and 40 Ar/ 39 Ar ages for tuffs of the Waki-Mille area are used to test previously published correlations among fossil collection areas and to extend those correlations to new areas (Deino et al, 2010;Haile-Selassie et al, 2010a;Saylor et al, 2016). The geochemical data are further used to assess whether tuffs in the Waki-Mille area extend into the Lower and Middle Awash Valley, or further across larger portions of the eastern African Rift System, including deep sea cores (e.g., Sarna-Wojcicki et al, 1985;Brown et al, 1992;deMenocal and Brown, 1999;WoldeGabriel et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Tephrostratigraphy of the Waki-Mille area of the Woranso-Mille paleoanthropological research project, Afar, Ethiopia

Saylor

Angelini

Deino

et al. 2016

Journal of Human Evolution

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Tephra geochemistry and (40)Ar/(39)Ar geochronology are reported for the Waki-Mille area in the northwestern part of the Woranso-Mille paleoanthropological project area in the west central Afar region of Ethiopia. Previous studies documented dentognathic fossils that are morphologically intermediate between Australopithecus anamensis and Australopithecus afarensis and some that are attributed to Australopithecus afarensis. Additional dentognathic remains from the study area were assigned to the newly identified species Australopithecus deyiremeda. These fossil hominin taxa were recovered from volcanic and sedimentary strata containing tuffs ranging in age from more than 3.77 million years ago (Ma) to less than 3.469 Ma. One of the tuffs was correlated based on geochemistry, feldspar mineralogy, and age to the Lokochot Tuff of the Omo-Turkana Basin of southern Ethiopia and Kenya. Variations in major and minor element abundances in volcanic glass demarcate ten geochemically distinct tuffs and tuff sequences, including three that are geochemically similar to widespread regional tuffs, specifically the Lomogol, Lokochot, and β- Tulu Bor/Sidi Hakoma tuffs. A new (40)Ar/(39)Ar age for the Waki Tuff, which is geochemically similar to the Lomogol Tuff, is 3.664 ± 0.016 Ma. Other tuffs in the Waki-Mille area are geochemically dissimilar to regional tuffs documented to date. Identification of tuffs based on character, stratigraphic position, and geochemistry refines local stratigraphic correlations and delineates the geographic distributions of precisely dated fossiliferous levels within the Waki-Mille area.

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Section: Methodsmentioning

confidence: 74%

Section: Mesgid Dora Tuff (Mdt)mentioning

confidence: 99%

Section: Kilaytoli Tuff (Kt)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tephrostratigraphy of the Waki-Mille area of the Woranso-Mille paleoanthropological research project, Afar, Ethiopia

Saylor

Angelini

Deino

et al. 2016

Journal of Human Evolution

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The Shoulder Girdle of KSD-VP-1/1

Melillo

2015

Vertebrate Paleobiology and Paleoanthropology

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The effects of mid-to-late Pliocene climatic fluctuations on the habitat and distribution of early hominins

Tràjer

2023

Hum Ecol

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The climatic fluctuations of the Pliocene played a substantial role in the emergence of Homo and Paranthropus. I studied the climatic suitability and affinity of hominins in Africa to understand how the regional effects of global climatic alternations influenced their occurrence in the mid-late Pliocene epoch. The modelled climatic suitability values indicate the existence of three potential main ranges in the continent. Late Pliocene climatic changes might result in notably fluctuating habitability conditions in the North, Central East, and Southern Africa. In the Afar Region, the range of the changing suitability values was narrower than in the other regions. Therefore, it can be assumed that Australopithecus afarensis might be more resistant to climatic fluctuations than the others. Graphical Abstract

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The Geologic Context of Korsi Dora and the Partial Skeleton KSD-VP-1/1

Cited by 4 publications

References 22 publications

Tephrostratigraphy of the Waki-Mille area of the Woranso-Mille paleoanthropological research project, Afar, Ethiopia

Tephrostratigraphy of the Waki-Mille area of the Woranso-Mille paleoanthropological research project, Afar, Ethiopia

The Shoulder Girdle of KSD-VP-1/1

The effects of mid-to-late Pliocene climatic fluctuations on the habitat and distribution of early hominins

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