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Ensamblajes del Paleolítico Medio del subcontinente indio antes y después de la supererupción de Toba
Michael Petraglia1, Ravi Korisettar, Nicole Boivin
1Leverhulme Centre for Human Evolutionary Studies, University of Cambridge, Cambridge CB2 1QH, UK. m.petraglia@human-evol.cam.ac.uk
Science (New York, N.Y.)
|July 7, 2007
Resumen
La masiva erupción del Youngest Toba Tuff hace 74.000 años no detuvo la evolución humana. La evidencia arqueológica muestra que los homínidos del Paleolítico Medio persistieron en la India, lo que sugiere una supervivencia regional a través de este importante evento volcánico.
Área de la Ciencia:
- La paleoantropología es la paleoantropología.
- Volcanología Volcanología.
- Arqueología Arqueología.
Sus antecedentes:
- La erupción del Toba Tuff más joven (YTT), un evento supervolcánico hace 74.000 años, impactó profundamente en los ambientes globales.
- Su efecto preciso en las primeras poblaciones humanas y la trayectoria de la evolución humana sigue siendo un tema de debate científico.
Objetivo del estudio:
- Para investigar el impacto de la erupción YTT en las poblaciones de homínidos en el sur de la India.
- Para determinar si las poblaciones humanas persistieron en la región durante y después del evento YTT.
Principales métodos:
- Excavación arqueológica en Jwalapuram en el valle del río Jurreru, sur de la India.
- Análisis de conjuntos de herramientas de piedra (tecnología del Paleolítico Medio) encontrados en capas estratigráficas asociadas con la erupción YTT.
Principales resultados:
- Los ensamblajes arqueológicos en Jwalapuram muestran una secuencia continua de tecnología del Paleolítico Medio.
- La presencia de estas herramientas a través de la capa geológica YTT indica la presencia de homínidos antes, durante y después de la erupción.
Conclusiones:
- Es probable que las poblaciones de homínidos persistieran en la región de Jwalapuram en la India durante la erupción del Toba Tuff más joven.
- La erupción del YTT puede no haber causado una extinción regional significativa o un cuello de botella para los homínidos del Paleolítico Medio en esta área, lo que sugiere resiliencia.
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