U-series dates of Great Barrier Reef corals suggest at least+0.7 m sea level similar to 7000 years ago

Yu, Ke-fu and Zhao, Jian-xin (2010) U-series dates of Great Barrier Reef corals suggest at least+0.7 m sea level similar to 7000 years ago. Holocene, 20 2: 161-168. doi:10.1177/0959683609350387


Author Yu, Ke-fu
Zhao, Jian-xin
Title U-series dates of Great Barrier Reef corals suggest at least+0.7 m sea level similar to 7000 years ago
Journal name Holocene   Check publisher's open access policy
ISSN 1477-0911
Publication date 2010-03
Sub-type Article (original research)
DOI 10.1177/0959683609350387
Volume 20
Issue 2
Start page 161
End page 168
Total pages 8
Place of publication London, England, U.K.
Publisher Sage Publications
Collection year 2011
Language eng
Subject 0403 Geology
0406 Physical Geography and Environmental Geoscience
Formatted abstract
Strong evidence from field observation and high-precision TIMS U-series dating of exposed in situ massive corals and exposed microatolls on Magnetic Island, Great Barrier Reef, indicates that the relative sea level was at least 0.7 m higher than present ~7000 calendar years (cal yr) ago, and culminated to at least ~1.6 m higher than present ~5800 cal yr ago. The present sea level was probably first reached around 7300—7100 cal yr ago. Together with the youngest age (2236 ± 27 cal yr) of an exposed microatoll colony, the data suggest past sea-level highstands occurred between 7200 and 2200 cal yr ago, lasting for 5000 years. This study represents the first attempt to date sea-level indicators from the Great Barrier Reef by the high-precision U-series method. The results are broadly consistent with a sea-level reconstruction based on a compilation and re-examination of 115 calibrated 14C dates from eastern Australia by Lewis et al. (2008).
Keyword Mid-Holocene
sea-level
coral reef
microatoll
Great Barrier Reef
Late Pleistocene
North Queensland
Fossil corals
Holocene
Australia
Marine
BP
Constraints
mid Holocene
Variability
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
Centre for Microscopy and Microanalysis Publications
 
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Created: Sun, 14 Mar 2010, 00:05:39 EST