"What causes differences in fracture rates of silcrete during heat trea" by Sara Watson, Shezani Nasoordeen et al.
Discussions of heat treatment in the southern African Middle Stone Age often focus on the importance of this innovation to the development of complex technologies and the evolution of modern human cognition. Debates regarding the context of silcrete heat treatment typically include the amount of time and resource investment needed, and when the earliest occurrences of heat treatment appear in the archaeological record. However, silcrete is a heterogeneous material and the potential effects of this heterogeneity on the thermal transformations that occur during heat treatment are not well establ...
Source: uow.edu.au