Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Unmodelled 14C ages with 25 years uncertainty right before (individual A2) and on the Hallstatt plateau section (compare Fig 4A) of the calibration curve (IntCal13) show the inversion of calibrated dates (2-sigma).
