ANT200Y1 Lecture Notes - Luminescence, Megafaunal Wolf, Rock Art
Document Summary
Measures the light energy of electrons trapped in crystal latices of minerals. These electrons are absorbed at a set rate in a given location. Heating releases these electrons resetting" the clock. The build up of electrons in these traps is at a constant steady rate. Can measure how many electrons have built up by heating them and measuring the light emitted. But any time that sample is heated (naturally) the clock is set to zero! Both neanderthals and modern humans used a lot of fire. The tl measured in burnt flint dates the burning of flint. Dosimeters are used to measure local uptake conditions. Tale of two hominins: the middle paleolithic of the levant. No case of neanderthals in same stratigraphic sequence as humans. Neanderthals evolved in europe starting around 200,000 ya. Homo sapiens in africa around 200,000 ya. Modern human presence in levant means that there was an expansion. Perhaps an overlap or perhaps a push and pull.
