radiocarbon

(a) Visible (VIS) light photography of the selected panel at the "Carrefour" ranging from the facing Reindeers 11 and 12 at Font-de-Gaume cave (credit: Anne Maigret, C2RMF) and (b) corresponding false color infrared photography (FCIR) image of the facing reindeer evidencing the underlying black horse figure with the indicated analytical pXRF and micro-Raman point analyses. Credit: Scientific Reports (2023). DOI: 10.1038/s41598-023-47652-1…

Aerial image of the excavations. Credit: Tandy archaeological expedition to Tel Gezer, CC-BY 4.0 (creativecommons.org/licenses/by/4.0/) New dates provide detailed insights into the timing of events in the ancient city of Gezer, according to a study published November 15, 2023 in the open-access journal PLOS ONE by Lyndelle Webster of the Austrian Academy of Sciences and colleagues. …

Reconstruction of Δ14C. Atmospheric 14C reconstruction based on Revine 14C tree-ring sequences located at their most likely (marginal posterior mode) calendar ages compared to IntCal20 estimate (green shape). The Revine observations are plotted with 1σ error bars, while the IntCal and Revine curves show 95% (or 2σ) probability intervals. Credit: Communications Earth & Environment (2023). DOI: 10.1038/s43247-023-00929-9 The…

A3396 Knife, southern cassowary casque / resin / abrus seed, maker not recorded, location not recorded, Queensland, Australia, made circa 1877–1930, acquired 1941. Credit: The Powerhouse Museum A number of sophisticated non-invasive nuclear and accelerator techniques were used to provide information about the origin and age of an Australian Aboriginal knife held in the collection of the Powerhouse Museum.…

Professor Sahra Talamo, director of the BRAVHO Radiocarbon Laboratory at the University of Bologna and first author of the study. Credit: University of Bologna It is called radiocarbon 3.0, the newest method in radiocarbon dating, and promises to reveal valuable new insights about key events in the earliest human history, starting with the interaction between Homo sapiens and Neanderthals in Europe. This is shown by the…

A new DNA method could help making it easier to date skeletons. Credit: Malinka333/Shutterstock Dating is everything in archaeology. Exciting discoveries of ancient burial sites or jewelry might make headlines, but for scientists, this kind of discovery is only meaningful if we can tell how old the artifacts are. …

The human liver stays youthful even while the rest of our bodies grow old, according to new research, and on average the organ is is less than three years old, no matter what the age of the person it's attached to.  Using mathematical modeling and a technique called retrospective radiocarbon birth dating – which dates human cells based on levels of a carbon isotope that spiked in the atmosphere following mid-20th century nuclear testing – scientists have found that liver renewal is largely unaffected as we grow old.That…