Reports

Carbon-14 Trends in Subfossil Pine Stubs

+ See all authors and affiliations

Science  28 Nov 1969:
Vol. 166, Issue 3909, pp. 1143-1145
DOI: 10.1126/science.166.3909.1143

Abstract

Subfossil pine stubs from a peat bog in the Netherlands were linked together dendrochronologically and sampled at intervals of 30 or 50 years for carbon-14 analysis. The results suggest that the carbon-14 content of the atmosphere was not changing between about 5400 and 5100 B.C., but that it was increasing slightly about 800 years earlier.

Related Content