Reports

Uranium-Series Ages of Pacific Atoll Coral

+ See all authors and affiliations

Science  02 Jul 1965:
Vol. 149, Issue 3679, pp. 55-58
DOI: 10.1126/science.149.3679.55

Abstract

The thorium-230: uranium-234 method of dating corals and oolites has been evaluated in detail for reliability, and various criteria have been established. Reliable ages for extensive coral formations of about 6000 and 120,000 years were obtained. A hiatus in the development of coral between 6000 and 120,000 years ago on the Pactfic atoll of Eniwetok implies that conditions did not permit coral growth during this period. The record prior to 120,000 years ago is not clear, probably because of a lack of unaltered samples.

Related Content