Meanwhile, Harper's study at Rose Cottage contain a confusion concerning the backed pieces and laterally crested blades Howiesons Poort tools seem not to differ greatly in shape from those of the Late Stone Age lithic tools such as those manufactured by Wilton culture though they tend to be larger but somewhat smaller than the typical flake and blade tools elsewhere in the Middle Stone Age.
It has been noted that “Not only was ochre collected and returned to the site but there is evidence in the ochre 'pencils' with ground facets that it was powdered for use.
Serial nomination including: Blombos (BBC), Border Cave (BC), Diepkloof (DKF), Klasies River (KR), Pinnacle Point (PP), Sibudu Cave (SC) and comparable sites relating to the emergence of modern humans.
Homo sapiens, ancestors of all modern people, emerged about 200 000 years ago.
For example, Lyn Wadley has noted that “if the Howiesons Poort backed blade production was an important marker of modern human behaviour it is difficult to explain why it should have lasted for more than 20,000 years and then have been replaced by ‘pre-modern’ technology?
Ensuing research in the 1970s documented that marine and other sediments with a prior sunlight exposure of hours to days were suitable for thermoluminescence dating (Wintle and Huntley, 1980).
Discoveries in the 1980s and 1990s that exposure of quartz and feldspar grains to a tunable light source, initially with lasers and later by light emitting diodes, yield luminescence components that are solar reset within seconds to minutes, expanded greatly the utility of the method (Huntley et al., 1985; Hütt et al., 1988; Aitken, 1998).
kyr) at Pinnacle Point (on the south coast of South Africa) humans expanded their diet to include marine resources, perhaps as a response to these harsh environmental conditions.
The earliest previous evidence for human use of marine resources and coastal habitats was dated to ~125.