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dc.contributor.authorPickering, R
dc.contributor.authorHancox, PJ
dc.contributor.authorLee-Thorp, JA
dc.contributor.authorGruen, R
dc.contributor.authorMortimer, GE
dc.contributor.authorMcCulloch, M
dc.contributor.authorBerger, LR
dc.date.available2014-05-22T01:05:35Z
dc.date.available2007-02-15
dc.date.available2007-02-15
dc.date.issued2007-11-01
dc.identifierpii: S0047-2484(07)00150-9
dc.identifier.citationPickering, R., Hancox, P. J., Lee-Thorp, J. A., Gruen, R., Mortimer, G. E., McCulloch, M. & Berger, L. R. (2007). Stratigraphy, U-Th chronology, and paleoenvironments at Gladysvale Cave: insights into the climatic control of South African hominin-bearing cave deposits. JOURNAL OF HUMAN EVOLUTION, 53 (5), pp.602-619. https://doi.org/10.1016/j.jhevol.2007.02.005.
dc.identifier.issn0047-2484
dc.identifier.urihttp://hdl.handle.net/11343/30472
dc.description.abstractGladysvale Cave is one of the few Plio-Pleistocene hominin-bearing cave sites in South Africa that contains a well-stratified cave fill with clastic sediments interspersed with flowstones. The clastic sediments can be divided into units based on the presence of intercalated flowstones, forming flowstone bounded units (FBU). Ten MC-ICP-MS uranium-series dates on several flowstone horizons in the Gladysvale Internal Deposit fan indicate deposition from the late mid-Pleistocene ( approximately 570 ka) to Holocene ( approximately 7 ka) during limited periods of higher effective moisture. Clastic sedimentation occurred during the interceding, presumably more arid, periods. This sequence is not consistent with earlier models for South African caves that simply assumed interglacial sedimentation and glacial erosion. (13)C/(12)C data suggest that flowstone tended to form during periods with higher proportions of C(3) plants in the local vegetation, while clastic sediments reflect higher proportions of C(4) grasses, although this is not always the case. We argue that flowstones are precipitated during periods of higher effective precipitation and restricted cave entrances, while clastic sediments accumulated during periods with more open vegetation. The sedimentary fill of the fossiliferous deposits are, therefore, highly episodic in nature, with large periods of time unlikely to be represented. This has serious implications for the other hominin-bearing caves close by, as these deposits are likely to be similarly episodic. This is especially pertinent when addressing extinction events and reconstructions of paleoenvironments, as large periods of time may be unrecorded. The Gladysvale Cave fill sediments may serve as a climatically forced chronostratigraphic model for these less well-stratified and well-dated Plio-Pleistocene sites.
dc.languageEnglish
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.subjectArchaeology
dc.titleStratigraphy, U-Th chronology, and paleoenvironments at Gladysvale Cave: insights into the climatic control of South African hominin-bearing cave deposits
dc.typeJournal Article
dc.identifier.doi10.1016/j.jhevol.2007.02.005
melbourne.peerreviewPeer Reviewed
melbourne.affiliationThe University of Melbourne
melbourne.affiliation.departmentEarth Sciences
melbourne.source.titleJOURNAL OF HUMAN EVOLUTION
melbourne.source.volume53
melbourne.source.issue5
melbourne.source.pages602-619
dc.research.codefor2101
dc.description.pagestart602
melbourne.publicationid165899
melbourne.elementsid336409
melbourne.contributor.authorPICKERING, ROBYN
dc.identifier.eissn1095-8606
pubs.acceptance.date2007-02-15
melbourne.accessrightsThis item is currently not available from this repository


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