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Oltepesi Member

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Image
View SSE across Locality B, with Oltulelei River in the foreground. White d...
Published: 15 March 2018
Figure 7. View SSE across Locality B, with Oltulelei River in the foreground. White deposits of Olorgesailie Formation Members 11–13 contrast with the reddish-brown Oltepesi Member valley fills, which record converging paleochannels eroded into the earlier sediments. Geological trench near center
Image
Overall composite panel diagram for the Oltulelei Formation, looking north,...
Published: 15 March 2018
distances between localities are shown below the panel. Olkesiteti Member is indicated by shades of gray plus the red basal unit in Locality G, Oltepesi Member is indicated by shades of brown, and Tinga Member is indicated by light orange. The Oltulelei Tuffs in the Olkesiteti Member are light gray. Heavy
Image
Summary diagram showing phases of aggradation and erosion in the Olorgesail...
Published: 15 March 2018
lines indicate the time interval between the two formations with no sedimentary record. The Olkesiteti Member filled part of the eroded landscape of the Olorgesailie Formation, the Oltepesi Member filled valleys cut into the previous deposits in the lower parts of this landscape, and the Tinga Member
Image
Representative strata and lithologies of the Oltulelei Formation; see also ...
Published: 15 March 2018
stem tuff at the top of phase G-5. (F) Phase G-4 at archaeological site GOK-4. (G) Oltulelei Tuffs (gray units) in cliff exposure near section OLT05-02, phases OLT-2a and 2b (below and above dashed line, respectively). Muteti Nume for scale. (H) Oltepesi Member (phases OLT-4 through OLT-6) in Locality
Journal Article
Journal: GSA Bulletin
Published: 15 March 2018
GSA Bulletin (2018) 130 (9-10): 1474–1492.
...Figure 7. View SSE across Locality B, with Oltulelei River in the foreground. White deposits of Olorgesailie Formation Members 11–13 contrast with the reddish-brown Oltepesi Member valley fills, which record converging paleochannels eroded into the earlier sediments. Geological trench near center...
FIGURES | View All (9)
Image
Perspective diagrams looking NNE, reconstructing middle to late Pleistocene...
Published: 15 March 2018
) Inferred fault movement on the west side of Locality B, which temporarily blocked east-to-west drainage, filling valleys and depositing distinctive orange-brown sediment over the Oltepesi Plain with distinctive orange-brown sediments (Oltepesi Member). Following this valley filling, a new drainage formed
Series: SEPM Special Publication, SEPM Special Publication
Published: 01 January 2002
DOI: 10.2110/pec.02.73.0097
EISBN: 9781565761957
... are dominated by primary and reworked diatomites, pedogenically modified diatomites, fine-grained siliciclastics (silts, clays), and reworked volcanic materials (Table 1) ( Isaac, 1977 , 1978 ; Potts et al., 1999 ; Owen and Reneaut, 1981 , 2000 ). Members 4 and 10 consist of fluvially reworked, pumice-rich...
FIGURES | View All (6)
Journal Article
Published: 01 June 2010
Clays and Clay Minerals (2010) 58 (3): 294–310.
...Daniel M. Deocampo; Anna K. Behrensmeyer; Richard Potts Abstract The Pleistocene Olorgesailie Formation in the southern Kenya Rift has yielded a remarkable assemblage of Acheulean artifacts and vertebrate fossils, including hominin specimen KNM-OG 45500. Members 1 and 7 both contain clay-rich...
FIGURES | View All (9)
Series: AAPG Studies in Geology, AAPG Studies in Geology
Published: 01 January 2000
DOI: 10.1306/St46706C52
EISBN: 9781629810713
... to cease. Much of the basin fill is concealed below later alluvial and colluvial deposits of the Legemunge and Oltepesi plains, but excellent exposures are present along an east-west trending scarp on the southern margins of the plains ( Figure 1 ). Mount Olorgesailie, an eroded Pliocene central volcano...
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