Thorium-230 ages of corals and duration of the last interglacial sea-level high stand on Oahu, Hawaii
- Geological Survey, Denver, CO (United States)
Thorium-230 ages of emergent marine deposits on Oahu, Hawaii, have a uniform distribution of ages from {approximately}114,000 to {approximately}131,000 years, indicating a duration for the last interglacial sea-level high stand of {approximately}17,000 years, in contrast to a duration of {approximately}8000 years inferred from the orbitally tuned marine oxygen isotope record. Sea level on Oahu rose to {>=}1 to 2 meters higher than present by 131,000 years ago or {approximately}6000 years earlier than inferred from the marine record. Although the latter record suggests a shift back to glacial conditions beginning at {approximately}119,000 years ago, the Oahu coral ages indicate a near present sea level until {approximately}114,000 years ago.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 68717
- Journal Information:
- Science, Journal Name: Science Journal Issue: 5182 Vol. 266; ISSN SCIEAS; ISSN 0036-8075
- Country of Publication:
- United States
- Language:
- English
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