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Helium-Uranium Dating of Corals from Middle Pleistocene Barbados Reef Tracts (1973)

Bender, Michael L. ; Taylor, F.T. ; Matthews, R.K.

Cambridge University Press

In: Quaternary Research. 1973; 3(1): 142-146. Published 1973 Jun 01. doi: 10.1016/0033-5894(73)90060-4.

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Publication Date: 1973-06-01

Description: By He-U dating of corals from elevated Pleistocene reef tracts on Barbados, we have extended back to the Middle Pleistocene the high sea stand chronology previously deduced by Th230-U dating. Six samples from the first major reef tract complex older than the 200,000-yr complex gave ages of 350,000 ± 25,000 yr B.P. Two corals from the crest of Second High Cliff, an unusually large escarpment occurring approximately midway in the terrace sequence, gave concordant ages of 480,000 and 500,000 yr. Unrecrystallized corals from older reefs gave ages ranging back to 650,000 yr.The results date episodes of high sea stands at 350,000 and 500,000 yr B.P.

Print ISSN: 0033-5894

Electronic ISSN: 1096-0287

Topics: Geography , Geosciences

Published by Cambridge University Press

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