Yale Natural Radiocarbon Measurements VII

Abstract

The following list includes many of the measurements made since publication of Yale VI, but many are withheld pending receipt of more complete information or additional samples. We report dates in terms of the Libby half life of C14, 5570 ± 30 yr; geochemical measurements, when normalized for C13content, are given as δ in parts per mil, as described in Yale VI. As before, we acknowledge the technical assistance of George Young, Jonathan King, Sheldon Nankin, and now Carolyn Haupt who has also joined our staff. Our work has been supported by the National Science Foundation, under grants G-19080 to Stuiver and G-19335 to Deevey, and by the U. S. Atomic Energy Commission under contract AT (30–1)–2652.