Radiocarbon

The radiocarbon data obtained by Christie’s has four possible calendar age ranges, because radiocarbon dating in this time period is imprecise due to “wiggles” in the curve used to convert radiocarbon ages to calendar dates.

However, this conclusion contradicts radiocarbon dating, according to which other sites preceded Anakena by many years, especially the Tahai, whose radiocarbon dates precede Anakena's by several centuries.

Radiocarbon dates of terrestrial macrofossils and tree rings in Europe show that this decline in apparent radiocarbon age occurred over about a 50-year period.

This radiocarbon age would make the Laacher see eruption about 200 radiocarbon years older than the start of the Younger Dryas.

To produce a curve that can be used to relate calendar years to radiocarbon years, a sequence of securely dated samples is needed which can be tested to determine their radiocarbon age.

Mr Maussan said the specimens had been analysed by the Autonomous National University of Mexico (UNAM), where scientists had been able to extract DNA and use radiocarbon dating to establish an age.

The team then measured radiocarbon concentrations in the wood, allowing them to pinpoint the year each tree fell from its roots.

The University of Maiduguri conducted an initial investigation of the site in 1989 and 1990 to determine if it was a canoe and to take radiocarbon dating samples of the wood.

Experts agree it was built by pre-Columbian natives, but even with radiocarbon dating no one can pinpoint the age or the tribe.

It was radiocarbon-dated and estimated to be about 9,200 years old.

The fortification’s date of construction is estimated between 2250 and 1950 BCE, on the basis of radiocarbon dating of samples collected during excavations.

The research presents more than 100 radiocarbon dates taken from four different excavation areas throughout the City of David, on the eastern and western slopes of the ancient city.

They reconstructed the genomes using samples from 15 human remains, which radiocarbon dating suggests are from individuals who likely lived before 1860.

Four of these samples produced ancient DNA, and were directly dated at the Pennsylvania State University Radiocarbon Laboratory.

Sometimes, however, the amount of radiocarbon that trees pick up isn't steady.

The discovery of using charcoal to date young volcanic processes, through radiocarbon, has allowed us to evaluate the geologic history of the Island of Hawaiʻi.

This study represents the first analysis and direct radiocarbon dating of from pottery from south-eastern Africa.

Bone points and pierced teeth, sampled for radiocarbon dating from the early Upper Paleolithic layers of the Denisova Cave in Siberia, Russia, are shown in this photo provided Wednesday.

By dating corals, going back even further with uranium-thorium dating than with radiocarbon dating, DeLong and her co-authors can observe paleoenvironmental changes in ancient coral skeletons.

By the time radiocarbon dating had come of age, in the postcolonial ferment of the 1960s, archaeology was already primed to relinquish its emphasis on narratives of migration.