Radio carbon dating has established it was built about 900-200BC and abandoned 1000 1470AD . Surrounding the hilltop fortress are lower-lying areas of occupation and extensive cemeteries, which have been heavily looted.
12.
However research and isotope analysis has established that the source of the metals is of local origin and radio carbon dating has confirmed a 9th-century date, long before the earliest contact with Europe.
13.
Early work suggested to excavators that the site was Preceramic, a fact that was later confirmed by radio carbon dating done by Jeffrey Quilter, who placed it in the latter part of the Preceramic.
14.
What if scientific testing ( i . e . radio carbon dating, Mass spectrometry ), being mathematical and unbiased, proved these to be false and just another in the long line of Archaeological forgery?
15.
If confirmed, " that would be the oldest " radio carbon date in the Americas obtained from a human bone, said archaeology textbook author Stuart Fiedel, a defender of the " Clovis first " school.
16.
Australian National University senior fellow Alan Thorne said the discovery was only possible using optically-stimulated luminescence because other methods such as thermoluminescence and radio carbon dating, could provide reliable datings only up to 40, 000 years.
17.
Early carbon dating has tended to underestimate the age of samples and as radio carbon dating techniques have developed and become more accurate, so the age of the Red Lady of Paviland has gradually been pushed back.
18.
Tentatively assigned to the fourth century BCE, radio carbon dating later confirmed an outer date of the ceramics and Megalithic cultural commencement in Kandarodai to 1300 BCE . Further excavations have been conducted by the University of Jaffna.
19.
And that got him interested in the island of Santorini, a Mediterranean caldera, or exploded volcano, with a civilization buried under volcanic ash, a sort of gigantic Pompeii, and a classic place for radio carbon dating of everything from food to clothing to human remains.
20.
The Indus Valley Civilisation dates back between 2500 BC and 1750 BC . What is known, however, is that metal currency was minted in India well before the Mauryan Empire ( 322 185 BCE ), and as radio carbon dating indicates, before the 5th century BCE.
