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High-precision measurements of Sr ratios are reported for Porites corals from the uplifted Holocene coral terraces at Huon Peninsula, Papua New Guinea. The early Holocene Porites have U-Th mass spectrometric ages of 8920 ± 60 yr and 7370 ± 50 yr, and δ 234 U(t) values of 145 ± 2, similar to modern seawater. The Sr coral records provide 5-6 year high resolution (near weekly) time...
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