The 13,000-Year-Old Man Found On A California Island — And The Dating Test That Changed The Story Of America’s First Migration
A fiber from a textile.
A small piece of bone from a fragmentary human skeleton.
All of these became datable by AMS in ways that conventional methods could not achieve.
For Arlington Springs, the small-sample requirement was critical.
The two femoral fragments were the entire physical record of the Arlington Springs individual.
Conventional radiocarbon dating of bone would have required consuming a significant fraction of the material — potentially most of it — in the dating process.
AMS required only a few milligrams of purified carbon, leaving the majority of the sample intact for other analyses and for posterity.
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