Plot of the temperature-dependent change in saturated red reflectance as a percentage of the saturated colour magnitude. Patrick Schmidt David J. Nash Sheila Coulson Matthias B. Göden Graeme J. Awcock 10.1371/journal.pone.0181586.g004 https://plos.figshare.com/articles/figure/Plot_of_the_temperature-dependent_change_in_saturated_red_reflectance_as_a_percentage_of_the_saturated_colour_magnitude_/5223256 <p>Plot of the temperature-dependent change in saturated red reflectance as a percentage of the saturated colour magnitude.</p> 2017-07-19 17:46:34 heat treatment MSA stone tool knapping Cape African Middle Stone Age Heat treatment silcrete heat treatment