Other techniques relevant to internet sites avove the age of 50,000 years, such as for example luminescence relationship, are less that are precise by way of a element of 3 or higher — and cannot be performed on archival materials available in museums, Sharp stated.

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Precision dating pushed back to 500,000 years ago Center Stone Age items recovered through the Ysterfontein 1 midden include denticulates, points and red ochre (reduced right). (photos courtesy of Richard Klein) The researchers genuinely believe that uranium-thorium dating can provide ages for ostrich eggshells since old as 500,000 years, extending exact relationship of middens along with other archeological sites more …