Heat Treatment (Other Keyword)

51-52 (52 Records)

Use of the ScanningElectron Microscope in Studying the Heat Treatment of Prehistoric Lithic Artifacts from the North Florida Weeden Island Period (1985)

DOCUMENT Citation Only G. Michael Jonnson.

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Using Surface Roughness to Identify Heat Treatment in Lithic Technology (2018)

DOCUMENT Citation Only John Murray. Jacob Harris. Simen Oestmo. Curtis Marean.

The heat treatment of stone to enhance flaking attributes was an important advancement in the adaptive toolkit of early humans. The earliest evidence for this is the heat treatment of silcrete 164 ka at the Middle Stone Age site Pinnacle Point 13B in South Africa. Heating stone prior to knapping alters the physical and chemical composition of the stone, and it has long been recognized that flaked heat-treated stone has a glossier surface. We expect this glossiness to result from a smoother...