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Physical anthropology dating methods

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In the last segment, relative and chronometric dating methods are explained in ways that will demonstrate state-of-the-art methods for discerning the age of a specimen.

Evolution places severe demands upon fossils used to support it.

Experts at the cutting edge of paleoanthropological research show how it’s done.

In this lesson, students are introduced to the ways researchers gather data in order to answer the basic human question: Who are we and where do we come from?

The ages assigned to these fossils have been obtained through radiometric dating of volcanic rocks interbedded with the fossiliferous sediments.

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Once the organism dies, however, it ceases to absorb carbon-14, so that the amount of the radiocarbon in its tissues steadily decreases.Yet even this seminal K-Ar dating study was plagued by the seemingly insurmountable problem of contamination. Advances in Archaeological and Museum Science, vol 2.The principal materials for dating East Africa hominid sites are volcanic ashes, yet many of these ashes are not deposited as primary air fall (Greek for ash). The multidisciplinary approach to this research is shown through interviews with established paleoanthropologists and with researchers in related areas such as archaeology, geology, the reconstruction of paleoenvironments, geomorphology, paleontology, and paleobotany.There is a strong focus on Koobi Fora, one of the most important field sites in paleoanthropology.Detailed studies of these fossils provide new insights into human evolution, such as the origin of locomotion and cultural activity, and the evolution of the brain, among many other complex features that have come to define humanity.