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New ages for Middle and Later Stone Age deposits at Mumba rockshelter, Tanzania: Optically stimulated luminescence dating of quartz and feldspar grains

Gliganic, Luke A ; Jacobs, Zenobia ; Roberts, Richard G ; Domínguez-Rodrigo, Manuel ; Mabulla, Audax Z.P

Journal of Human Evolution, April 2012, Vol.62(4), pp.533-547 [Periódico revisado por pares]

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  • Título:
    New ages for Middle and Later Stone Age deposits at Mumba rockshelter, Tanzania: Optically stimulated luminescence dating of quartz and feldspar grains
  • Autor: Gliganic, Luke A ; Jacobs, Zenobia ; Roberts, Richard G ; Domínguez-Rodrigo, Manuel ; Mabulla, Audax Z.P
  • Assuntos: East Africa ; Chronology ; Single Grains ; Dose Distributions ; Past Environments ; Anthropology ; Biology
  • É parte de: Journal of Human Evolution, April 2012, Vol.62(4), pp.533-547
  • Descrição: The archaeological deposits at Mumba rockshelter, northern Tanzania, have been excavated for more than 70 years, starting with Margit and Ludwig Köhl-Larsen in the 1930s. The assemblages of Middle Stone Age (MSA) and Later Stone Age (LSA) artefacts collected from this site constitute the type sequences for these cultural phases in East Africa. Despite its archaeological importance, however, the chronology of the site is poorly constrained, despite the application since the 1980s of several dating methods (radiocarbon, uranium-series and amino acid racemisation) to a variety of materials recovered from the deposits. Here, we review these previous chronologies for Mumba and report new ages obtained from optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL) measurements on single grains of quartz and multi-grain aliquots of potassium (K) feldspar from the MSA and LSA deposits. Measurements of single grains of quartz allowed the rejection of unrepresentative...
  • Idioma: Inglês

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