Indeed, the carvings could be as old as 17,000 to 19,000 years, according to a report in December 2011 issue of the Quarterly Review of Archaeology, Antiquity (see “First evidence of Pleistocene rock art in North Africa: securing the age of the Qurta petroglyphs (Egypt) through OSL dating”. Vandenberghe’s approach was to measure the ability of the sedimentary mineral grains to luminescence – or emit light.
This property is both useful and challenging at the same time.
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The Qurta rock art – a series of carved images of birds, animals and some human figures – is at least 15,000 years old, according to an analysis of grains of sediment blown onto the rocks from the Nile river banks.
Mechanisms of late Quaternary fault throw-rate variability along the north-central Gulf of Mexico coast: Implications for coastal subsidence. doi:10.1111/bre.12184Mauz, B., Vacchi, M., Green, A., Hoffmann, G., & Cooper, A. Beachrock: A tool for reconstructing relative sea level in the far-field.
Episodic overbank deposition as a dominant mechanism of floodplain and delta-plain aggradation.
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The principal minerals used in luminescence dating are quartz and potassium feldspar.