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Single-grain OSL chronologies for Middle Palaeolithic deposits at El Mnasra and El Harhoura 2, Morocco: implications for Late Pleistocene human-environment interactions along the Atlantic coast of northwest Africa

Jacobs, Zenobia ; Roberts, Richard G ; Nespoulet, Roland ; El Hajraoui, Mohammed Abdeljalil ; Debénath, André

Journal of human evolution, March 2012, Vol.62(3), pp.377-94 [Periódico revisado por pares]

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  • Título:
    Single-grain OSL chronologies for Middle Palaeolithic deposits at El Mnasra and El Harhoura 2, Morocco: implications for Late Pleistocene human-environment interactions along the Atlantic coast of northwest Africa
  • Autor: Jacobs, Zenobia ; Roberts, Richard G ; Nespoulet, Roland ; El Hajraoui, Mohammed Abdeljalil ; Debénath, André
  • Assuntos: Archaeology ; Chronology As Topic ; Luminescent Measurements -- Methods
  • É parte de: Journal of human evolution, March 2012, Vol.62(3), pp.377-94
  • Descrição: Optically stimulated luminescence (OSL) measurements were made on individual, sand-sized grains of quartz from Middle Palaeolithic deposits at two cave sites (El Harhoura 2 and El Mnasra) on the Atlantic coast of Morocco. We were able to calculate OSL ages for 32 of the 33 samples collected from the Middle Palaeolithic deposits, including the earliest and latest Aterian levels at both sites. These ages reveal periods of occupation between about 110 and 95 ka (thousands of years ago), and at ~75 ka. A late Middle Palaeolithic occupation of El Harhoura 2 is also recorded at ~55 ka. Our single-grain OSL chronologies largely support previous age estimates from El Mnasra and other sites along the Atlantic coast of Morocco, but are generally more precise, reproducible and stratigraphically more coherent (i.e., fewer age reversals). We compare the single-grain ages for El Harhoura 2 and El Mnasra with those obtained from single- and multi-grain OSL dating of Middle Palaeolithic deposits in the...
  • Idioma: Inglês

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