Show simple item record

dc.contributor.author Williams, M. A. J.
dc.contributor.author Williams, F. M.
dc.contributor.author Duller, G. A. T.
dc.contributor.author Munro, R. N.
dc.contributor.author El Tom, O. A. M.
dc.contributor.author Barrows, T. T.
dc.contributor.author Macklin, M.
dc.contributor.author Woodward, J.
dc.contributor.author Talbot, M. R.
dc.contributor.author Haberlah, D.
dc.contributor.author Fluin, J.
dc.date.accessioned 2011-05-13T10:00:31Z
dc.date.available 2011-05-13T10:00:31Z
dc.date.issued 2010-05
dc.identifier.citation Williams , M A J , Williams , F M , Duller , G A T , Munro , R N , El Tom , O A M , Barrows , T T , Macklin , M , Woodward , J , Talbot , M R , Haberlah , D & Fluin , J 2010 , ' Late Quaternary floods and droughts in the Nile valley, Sudan: new evidence from optically stimulated luminescence and AMS radiocarbon dating ' Quaternary Science Reviews , vol 29 , no. 9-10 , pp. 1116-1137 . , 10.1016/j.quascirev.2010.02.018 en
dc.identifier.issn 0277-3791
dc.identifier.other PURE: 159632
dc.identifier.other dspace: 2160/6727
dc.identifier.uri http://hdl.handle.net/2160/6727
dc.description Williams, M. A. J., Williams, F. M., Duller, G. A. T., Munro, R. H., El Tom, O. A. M., Barrows, T. T., Macklin, M. G., Woodward, J. C., Talbot, M. R., Haberlay, D., Fluin, J. (2010). Late Quaternary floods and droughts in the Nile valley, Sudan: new evidence from optically stimulated luminescence and AMS radiocarbon dating. Quaternary Science Reviews, 29(9-10), 1116-1137 Sponsorship: Australian Research Council; en
dc.description.abstract Our results show that the late Pleistocene Nile in northern Sudan was shifting position and actively aggrading at 145 +/- 20 kyr, 83 +/- 24 kyr, 32 +/- 8 kyr and 20.7 +/- 0.2 kyr and indicate, for the first time, a phase of high-energy flow in the White Nile at 27.8 +/- 3.2 kyr, with still high but somewhat reduced flow in that river at 13.3 kyr, 10 kyr and 4.8-4.0 kyr. Beach ridges associated with a 386 m strandline of the White Nile have OSL ages of 27.5 +/- 2.7 kyr and 14.5 +/- 1.6 kyr. The Holocene terraces and former channels of the main Nile have ages of 11 kyr, 6.5-5.0 kyr and 4.8-4.0 kyr, after which there was a general decline in flood discharge. The now arid main Nile valley in northern Sudan was significantly wetter during the early to middle Holocene, with a lake up to 450 km(2) in area, fed by an overflow channel from the early Holocene Nile between 9.5 kyr and 7.5 kyr. Previously stable late Pleistocene dunes were reactivated at intervals during the Holocene, with five samples from the White Nile valley indicating brief phases of Holocene dune activity at 9.9 +/- 2.0 kyr, 9.0 +/- 2.8 kyr, 6.6 +/- 0.9 kyr, 4.8 +/- 0.9 kyr and 2.9 +/- 0.5 kyr, the earliest of which occurred within periods of generally wetter climate and higher Nile flow. The youngest freshwater shells on the Khor Abu Habl alluvial fan west of the White Nile correspond to a time of regionally wetter climate between 1.7 and 1.0 kyr. Our results suggest that millennial scale climatic instability may have been characteristic of Holocene climates in this region. (C) 2010 Elsevier Ltd. All rights reserved. en
dc.format.extent 22 en
dc.language.iso eng
dc.relation.ispartof Quaternary Science Reviews en
dc.subject MEDITERRANEAN SEDIMENTS en
dc.subject LAST GLACIAL MAXIMUM en
dc.subject EAST-AFRICA en
dc.subject ARABIAN PENINSULA en
dc.subject LATE PLEISTOCENE DESICCATION en
dc.subject WHITE-NILE en
dc.subject DIATOM RECORD en
dc.subject LAKE VICTORIA en
dc.subject HOLOCENE CLIMATIC OPTIMUM en
dc.subject STABLE-ISOTOPE en
dc.title Late Quaternary floods and droughts in the Nile valley, Sudan: new evidence from optically stimulated luminescence and AMS radiocarbon dating en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/j.quascirev.2010.02.018
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution Quaternary Environmental Change Group en
dc.contributor.institution River Basin Dynamics and Hydrology en
dc.description.status Peer reviewed en


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Cadair


Advanced Search

Browse

Statistics