Deglacial Meltwater Pulse 1B and Younger Dyas Sea Levels Revisited with Boreholes at Tahiti

Material Information

Title:
Deglacial Meltwater Pulse 1B and Younger Dyas Sea Levels Revisited with Boreholes at Tahiti
Series Title:
Science Magazine Volume 327 Issue 1235
Creator:
Bard, Edouard
Hamelin, Bruno
Delanghe-Sabatier, Doriane
Publisher:
American Association for the Advancement of Science
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
Sea level rise ( lcsh )
Meltwater ( lcsh )
Corals ( lcsh )
Ice sheets ( lcsh )

Notes

Abstract:
Reconstructing sea-level changes during the last deglaciation provides a way of understanding the ice dynamics that can perturb large continental ice sheets. The resolution of the few sea-level records covering the critical time interval between 14,000 and 9,000 calendar years before the present is still insufficient to draw conclusions about sea-level changes associated with the Younger Dryas cold event and the meltwater pulse 1B (MWP-1B). We used the uranium-thorium method to date shallow-living corals from three new cores drilled onshore in the Tahiti barrier reef. No significant discontinuity can be detected in the sea-level rise during the MWP-1B period. The new Tahiti sea-level record shows that the sea-level rise slowed down during the Younger Dryas before accelerating again during the Holocene. ( English )

Record Information

Source Institution:
Florida International University
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Sea Level Rise