نتایج جستجو برای: factor 14

تعداد نتایج: 1169994  

Journal: :Biochemical Society transactions 1995
A Aitken D Jones Y Soneji S Howell

Journal: :Atlas of Genetics and Cytogenetics in Oncology and Haematology 2010

Journal: :Science 2008
Tom D Dillehay C Ramírez M Pino M B Collins J Rossen J D Pino-Navarro

The identification of human artifacts at the early archaeological site of Monte Verde in southern Chile has raised questions of when and how people reached the tip of South America without leaving much other evidence in the New World. Remains of nine species of marine algae were recovered from hearths and other features at Monte Verde II, an upper occupational layer, and were directly dated bet...

Journal: :The Journal of clinical investigation 1961
E E GORDON

Journal: :Science 2006
Walter L Friedrich Bernd Kromer Michael Friedrich Jan Heinemeier Tom Pfeiffer Sahra Talamo

Precise and direct dating of the Minoan eruption of Santorini (Thera) in Greece, a global Bronze Age time marker, has been made possible by the unique find of an olive tree, buried alive in life position by the tephra (pumice and ashes) on Santorini. We applied so-called radiocarbon wiggle-matching to a carbon-14 sequence of tree-ring segments to constrain the eruption date to the range 1627-16...

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