Why Was Silcrete Heat-Treated in the Middle Stone Age? An Early Transformative Technology in the Context of Raw Material Use at Mertenhof Rock Shelter, South Africa

• Patrick Schmidt ,

  Contributed equally to this work with: Patrick Schmidt, Alex Mackay

  * E-mail: patrick.schmidt@uni-tuebingen.de

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

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• Alex Mackay

  Contributed equally to this work with: Patrick Schmidt, Alex Mackay

  Affiliations Centre for Archaeological Science, School of Earth and Environmental Sciences, University of Wollongong, Wollongong, Australia, Department of Archaeology, University of Cape Town, Rondebosch, South Africa

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