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Las fechas de la serie U espectrométrica de masas para los sitios israelíes de neandertales / homínidos modernos
F McDermott1, R Grün, C B Stringer
1Department of Earth Sciences, Open University, Milton Keynes, UK.
Nature
|May 20, 1993
Resumen
Los neandertales y los primeros Homo sapiens coexistieron en Israel hace unos 100.000 años, desafiando las líneas de tiempo anteriores. Nuevos métodos de datación confirman esta superposición, crucial para la comprensión de la evolución humana.
Área de la Ciencia:
- La paleoantropología es la paleoantropología.
- Ciencias Arqueológicas Ciencia Arqueológica
Sus antecedentes:
- La relación entre los neandertales y los primeros Homo sapiens es una cuestión clave en la evolución humana.
- Los sitios del Paleolítico Medio en Israel son cruciales ya que contienen ambos tipos de homínidos.
Objetivo del estudio:
- Para fechar con precisión los restos de Neanderthal y los primeros Homo sapiens de sitios israelíes clave.
- Para resolver la relación cronológica entre estos grupos de homínidos.
Principales métodos:
- Nueva datación espectrométrica de masas 230Th/234U aplicada a los fragmentos dentales.
- Integración de nuevos datos con las fechas existentes de resonancia de espín de electrones (ESR).
Principales resultados:
- Los fragmentos dentales de los sitios de Tabun (Neandertal) y Qafzeh (Homo sapiens) datan de hace aproximadamente 100 ± 5 kyr.
- Algunos materiales de homínidos del sitio de Skhul son más jóvenes de lo que se pensaba.
- La datación combinada de 230Th/234U y ESR resulta efectiva para sitios arqueológicos más allá de los límites de la datación por radiocarbono.
Conclusiones:
- Los neandertales y los primeros Homo sapiens fueron contemporáneos en el sur del Levante hace unos 100.000 años.
- Este hallazgo tiene implicaciones significativas para la comprensión de las interacciones y la evolución de los homínidos.
- Las técnicas avanzadas de datación mejoran la fiabilidad de las cronologías arqueológicas.
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