Cosmogenic Carbon-14 in Meteorites and Terrestrial Ages of "Finds" and Craters

Abstract

Carbon-14 has been measured in several stone and iron meteorites. For "falls," the C¹⁴/Al²⁶ ratios in stones and the C¹⁴/Cl³⁶ ratios in irons are consistent with constant irradiation. The stone "finds" have radiocarbon ages of up to ≥ 21,000 years. The Henbury craters are apparently ≤ 7,000 and the Odessa craters ≥ 11,000 years old.