Single-year dating of Siberian Scythian kurgans with 14C spike

Category: Time:
Wednesday, September 27, 2023 - 12:00 to 13:00
Room: URL: Speaker:
Irina Panyushkina
Associate Research Professor, Laboratory of Tree-Ring Research, University of Arizona
Pamela Pelletier
Calendar Status:


Bayesian modeling has greatly advanced the accuracy of calibrating radiocarbon dates from archaeological wood. High-precision AMS measurements from a single tree ring lay out a new framework for refining the chronologies of world cultural heritage. Rapid rises of 14C production rate in the atmosphere over 1-2 years driven by jarring surge of incoming cosmic rays, provides aspiring prospects to single-year dating of archeological occurrences.  With carbon box modeling we categorized the start date, duration, and magnitude of 14C production rate of Miyake event around 660 BCE using tree rings from archaeological timbers of Siberian Scythian kurgans. The modeling positioned the spike in the year 663 BCE. With this result in mind, we revisited tree-ring chronologies of Pazyryk culture in the Altai Mountains and corrected the calendar dates of kurgan groups at high and low altitudes using the 14C spike dating approach.