期刊
QUATERNARY RESEARCH
卷 78, 期 2, 页码 157-169出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1016/j.yqres.2012.05.008
关键词
Curacao; Corals; Reefs; U-series dating; Uplift rate; Last interglacial; Penultimate interglacial; Sea level
资金
- Climate and Land Use Change Program of the U.S. Geological Survey
- STRI
- Smithsonian Institution National Museum of Natural History's Biodiversity Grants program
- Australian Research Council Centre of Excellence for Coral Reef Studies
Curacao has reef terraces with the potential to provide sea-level histories of interglacial periods. Ages of the Hato (upper) unit of the Lower Terrace indicate that this reef dates to the last interglacial period, Marine Isotope Stage (MIS) 5.5. On Curacao, this high sea stand lasted at least 8000 yr (similar to 126 to similar to 118 ka). Elevations and age of this reef show that late Quaternary uplift rates on Curacao are low, 0.026-0.054 m/ka, consistent with its tectonic setting. Ages of similar to 200 ka for corals from the older Cortalein unit of the Lower Terrace correlate this reef to MIS 7, with paleo-sea level estimates ranging from -3.3 m to +2.3 m. The estimates are in agreement with those for MIS 7 made from other localities and indicate that the penultimate interglacial period was a time of significant warmth, on a par with the present interglacial period. The similar to 400 ka (MIS 11) Middle Terrace I on Curacao, dated by others, may have formed from a paleo-sea level of +8.3 to +10.0 m, or (less likely) +17 m to +20 m. The lower estimates are conservative compared to previous studies, but still require major ice sheet loss from Greenland and Antarctica. Published by Elsevier Inc. on behalf of University of Washington.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据