Early Evidence for the Extensive Heat Treatment of Silcrete in the Howiesons Poort at Klipdrift Shelter (Layer PBD, 65 ka), South Africa

• Anne Delagnes ,

  Contributed equally to this work with: Anne Delagnes, Patrick Schmidt

  * E-mail: a.delagnes@pacea.u-bordeaux1.fr

  Affiliations PACEA, CNRS—University of Bordeaux, Pessac, France, School of Geography, Archaeology and Environmental Studies and Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South Africa

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• Patrick Schmidt ,

  Contributed equally to this work with: Anne Delagnes, Patrick Schmidt

  Affiliation Department of Prehistory and Quaternary Ecology, Eberhard Karls University of Tübingen, Tübingen, Germany

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• Katja Douze,

  Affiliations PACEA, CNRS—University of Bordeaux, Pessac, France, School of Geography, Archaeology and Environmental Studies and Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South Africa

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• Sarah Wurz,

  Affiliations School of Geography, Archaeology and Environmental Studies and Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South Africa, Department of Archaeology, History, Cultural Studies and Religion, University of Bergen, Bergen, Norway

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• Ludovic Bellot-Gurlet,

  Affiliation MONARIS, Sorbonne Universités, UPMC Université Paris 6, UMR 8233, Paris, France

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• Nicholas J. Conard,

  Affiliation Department of Prehistory and Quaternary Ecology, Eberhard Karls University of Tübingen, Tübingen, Germany

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• Klaus G. Nickel,

  Affiliation Department of Geosciences, Applied Mineralogy, Eberhard Karls University of Tübingen, Tübingen, Germany

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• Karen L. van Niekerk,

  Affiliations Department of Archaeology, History, Cultural Studies and Religion, University of Bergen, Bergen, Norway, School of Geography, Archaeology and Environmental Studies and Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South Africa

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• Christopher S. Henshilwood

  Affiliations School of Geography, Archaeology and Environmental Studies and Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South Africa, Department of Archaeology, History, Cultural Studies and Religion, University of Bergen, Bergen, Norway

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