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Nuevas fechas en los artefactos del norte de Yukon: holoceno no pleistoceno superior
Science (New York, N.Y.)
|May 9, 1986
Resumen
Una nueva datación por radiocarbono revela que cuatro artefactos que se pensaba que pertenecían a la era del Pleistoceno en el Territorio de Yukon son en realidad del Holoceno tardío. Un solo artefacto.
Área de la Ciencia:
- Arqueología Arqueología.
- Ciencia Cuaternaria La ciencia cuaternaria es la ciencia cuaternaria.
- La datación por radiocarbono fue
Sus antecedentes:
- El Territorio del Yukón ha sido un punto focal para la investigación de la presencia humana temprana en América del Norte.
- Estudios anteriores sugirieron ocupación humana durante el Pleistoceno superior, basado en la datación de artefactos.
- Los artefactos específicos, incluido el 'Old Crow flesher', fueron piezas clave de evidencia para esta ocupación temprana.
Objetivo del estudio:
- Reevaluar la edad de cuatro artefactos clave previamente atribuidos al Pleistoceno superior.
- Para aclarar la línea de tiempo del asentamiento humano en el Territorio del Yukón.
- Para corregir inexactitudes en los resultados anteriores de la datación por radiocarbono.
Principales métodos:
- Adquisición de nuevas fechas de radiocarbono para cuatro artefactos previamente estudiados.
- Aplicación de técnicas avanzadas de datación por radiocarbono.
- Comparación de las nuevas fechas con las edades publicadas anteriormente.
Principales resultados:
- Se ha confirmado que los cuatro artefactos re-datados son de finales del período del Holoceno.
- Las nuevas fechas revisan significativamente la línea de tiempo aceptada de la presencia humana en la región.
- Un artefacto, el 'Old Crow flesher', tenía un error de edad radiocarbónico inicial de casi 26.000 años.
Conclusiones:
- La evidencia de la ocupación humana en el Territorio de Yukon durante el Pleistoceno superior no está respaldada por estos artefactos.
- Ahora se entiende que la presencia humana en el Territorio de Yukon está principalmente dentro del Holoceno tardío.
- Este estudio pone de relieve la importancia de los métodos de datación rigurosos y actualizados en la investigación paleoambiental y arqueológica.
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