Dating archeological eras

Egalement, les âges radiocarbone de calibration, issue de périodes critiques de la préhistoire africaine, manque la précision nécessaire pour résoudre des débats importants.Une stratégie de datation multiple et une sélection rigoureuse des matériaux d’échantillons de radiocarbone sont conseillées dès les premières étapes de la conception de la recherche.L’application de la datation par le carbone 14 pour déterminer la géochronologie des sites archéologiques est. La spectrométrie de masse a rendu la datation par le carbone 14 la méthode la plus précise pour déterminer la mort d’organismes vivants ayant eux lieux au cours des 50,000 dernières années. Plus précisément, cette revue se concentrera sur la possibilité que les estimations d’âge apparentes soient exagérées par la présence de réservoirs de carbone et de restes organiques recyclées, sur la diagenèse d’isotopes de carbone dans les écologies de p H variables, et sur les climats chauds et humides ainsi que les archives sans température contrôlée qui peuvent compromettre l’efficacité des échantillons.Les âges radiocarbone basés sur des données anciennes doivent être rigoureusement examinés pour en déduire la méthode employée dans la détermination d’âge.All archaeologists should be aware of the fact that they are dating organic samples, and it is the archaeological context of that sample that determines its relationship to the site’s age.If the contextual association of the sample to the site is poor or if there are taphonomic effects that have compromised the sample’s integrity, the accuracy of the date relative to the archaeological occupation will be poor, even if the date is precise (e.g., ±10 years).

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The general reliability of the method and abundance of sites with carbon-based materials for dating have justifiably propelled radiocarbon dating to the top of the available methods for securing age control on archaeological activity.

Like all continents, Africa has a heterogeneous geography and should not be viewed as a single “place.” However, in the context of this review, it will become obvious that there are issues unique to radiocarbon dating in Africa that overlap other areas of the world, but combine to create circumstances specific to the continent given the history of research conducted therein.

Interested readers are urged to read more general reviews of radiocarbon dating, which discuss issues more exhaustively and globally (e.g., Bronk Ramsey ).

According to the University of Arizona, the publishers of ).

This gives consumers of radiocarbon services a wide range of choices in where and how to obtain a radiocarbon chronology.

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