Knowledge vs. know-how? Dissecting the foundations of stone knapping skill

J Pargeter, N Khreisheh, JJ Shea, D Stout - Journal of Human Evolution, 2020 - Elsevier
Stone tools provide some of the best remaining evidence of behavioral change over long
periods, but their cognitive and evolutionary implications remain poorly understood. Here …

[HTML][HTML] Experimentation preceding innovation in a MIS5 Pre-Still Bay layer from Diepkloof Rock Shelter (South Africa): emerging technologies and symbols

G Porraz, JE Parkington, P Schmidt… - Peer Community …, 2021 - peercommunityjournal.org
In southern Africa, key technologies and symbolic behaviors develop as early as the later
Middle Stone Age in MIS5. These innovations arise independently in various places …

The Pleistocene stone artifact record of Africa: Technologies, typologies, and analytic approaches

DI Olszewski, MR Kleindienst, J Pargeter… - … Archaeology of Africa …, 2023 - Springer
Flaked stone (lithic) artifacts are a ubiquitous cultural material at Pleistocene sites and first
appear in the archaeological record 3.3 million years ago (Ma) in East Africa. The African …

Optimal linear estimation (OLE) modeling supports Early Holocene (9000–8000 RCYBP) copper tool production in North America

MR Bebber, AJM Key - American Antiquity, 2022 - cambridge.org
The discovery and development of metal as a tool medium is a topic of global interest. A
fundamental research goal involves establishing the timing of human experimentation with …

Heat treatment significantly increases the sharpness of silcrete stone tools

A Key, J Pargeter, P Schmidt - Archaeometry, 2021 - Wiley Online Library
Humans were regularly heat‐treating stone tool raw materials as early as 130,000 years
ago. The late Middle Stone Age (MSA) and Late Stone Age (LSA) of South Africa's Western …

[HTML][HTML] Portable, non-destructive colorimetry and visible reflectance spectroscopy paired with machine learning can classify experimentally heat-treated silcrete from …

JK Murray, S Oestmo, AM Zipkin - Plos one, 2022 - journals.plos.org
The objective of this study was to determine if visible reflectance spectroscopy and
quantitative colorimetry represent viable approaches to classifying the heat treatment state …

A new approach to identify heat treated silcrete near Pinnacle Point, South Africa using 3D microscopy and Bayesian modeling

JK Murray, JA Harris, S Oestmo, M Martin… - Journal of …, 2020 - Elsevier
The heat treatment of stone to enhance flaking attributes was an important advance in the
adaptive toolkit of humans and a major step in pyrotechnology. The earliest evidence for this …

Examining the distribution of Middle Paleolithic Nubian cores relative to chert quality in southern (Nejd, Dhofar) and south‐central (Duqm, Al Wusta) Oman

MI Eren, MR Bebber, D Singer, C Pearson… - …, 2024 - Wiley Online Library
Lithic raw material properties are often invoked to explain the presence, absence, form, or
ontogeny of Paleolithic stone tools. Here, we explore whether the frequency of the Middle …

Variability in Silcrete Heat Treatment at Klein Kliphuis Shelter, South Africa, and Its Role in Core Reduction

P Schmidt, P Hiscock, A Mackay - Lithic Technology, 2024 - Taylor & Francis
Silcrete heat treatment was the earliest known transformative process enhancing the
mechanical properties of materials. Its study has implications for our understanding of the …

[HTML][HTML] What causes differences in fracture rates of silcrete during heat treatment? A near-infrared study of water-related transformations in South African silcretes

S Watson, S Nasoordeen, MN Grote, A Mackay… - Journal of …, 2021 - Elsevier
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 …