Radiometric dating of artefacts
Radiometric dating is a dating system used to tell the ages of ancient artefacts and relics. It is a dating concept that involve the use of naturally occurring isotopes found in carbon substances or rocks. Each isotope has its own unique half-life. Therefore, the age of formation of the body of mass is determined by quantifying and comparing its decay rate. This system has increased the efficiency of history and archaeology as humans are now able to classify ancient civilizations better. A group of scientists have been using radiometric dating in exploring the Neanderthal origin. Neanderthals are a primate species who have been suggested to precede humans. The dating system has been equipped in fossil examination to obtain more facts. The scholars also tried to explore the lifestyles of modern humans present in Eurasia at the dawning years of the upper Paleolithic (Hublin et al. 18743). According to Hublin et al., radiometric arguments are crucial and significant when assessing the possible mixing of the CP layer.
The scholars selected 40 bone samples from Grotte du Renne’s layers XI-VII and target areas that they believed yielded diagnostic Neanderthal remains or CP body elements. The key selection criterion utilized by Hublin et al. in their study was good bone preservation. The authors then extracted collagens, conducted isotopic measurements, and graphitization. Bone cleaning was done followed by the removal of humics. The samples were then treated or decalcified using 0.5 M HCI and the resulting solid at 75o C. The nitrogen and carbon stable isotope values, %N and %C, and C: N ratios of the collagen were measured using a combination of the “Delta V isotope ratio mass spectrometer” and the Thermo Finnigan Flash EA (Hublin et al. 18744). The comprehensiveness of the methodology makes the findings of Hublin et al.’s study accurate. Therefore, the results obtained by the authors that markers for Châtelperronian were the Neandertals is acceptable.
Work Cited
Hublin, Jean-Jacques, Sahra Talamo, Michèle Julien, Francine David, Nelly Connet, Pierre Bodu, Bernard Vandermeersch, and Michael P. Richards. "Radiocarbon dates from the Grotte du Renne and Saint-Césaire support a Neandertal origin for the Châtelperronian." Proceedings of the National Academy of Sciences vol. 109, no. 46 (2012): 18743-18748. Retrieved from: http://www.pnas.org/content/109/46/18743.full
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