High resolution stable isotope records of sclreractinian corals near Ishigaki Island: Their implication as a potential paleoclimatic recorder in middle latitude regions
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Title
- High resolution stable isotope records of sclreractinian corals near Ishigaki Island: Their implication as a potential paleoclimatic recorder in middle latitude regions
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Author(s)
- Shimamura, Michiyo; Hyeong, Kiseong; Yoo, Chan Min; Watanabe, Tsuyoshi; Irino, Tomohisa; Jung, Hoi-Soo
- KIOST Author(s)
- Hyeong, Ki Seong(형기성); Yoo, Chan Min(유찬민); Jung, Hoi Soo(정회수)
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Alternative Author(s)
- Michiyo; 형기성; 유찬민; 정회수
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Publication Year
- 2008-03
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Abstract
- We propose skeletal delta O-18 of Platygyra, a hermatypic reef building massive coral, as a potential paleo-SST proxy in mid-latitude regions, where the commonly used massive Porites corals are rare. Skeletal delta O-18 ratio (delta O-18(c)) of a Platygyra and Porites corals collected from Ishigaki Island, Japan, shows a clear seasonality corresponding to SST variation. The temperature dependence of the Platygyra coral was estimated, for the first time with appropriate sampling resolution, at -0.219 parts per thousand/degrees C (T = -4.57 delta O-18(c)+ 2.65, r(2) = 0.96). Massive Platygyra colonies show a wide distribution from the tropics to mid-latitudes further northwards than Porites. Platygyra's adaptation to colder water temperatures and strong temperature dependence of delta O-18(c), suggest its application as a potential paleo-SST proxy for mid-latitude regions, where high resolution SST proxies are not available, as well as in tropical to subtropical regions.
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ISSN
- 1226-4806
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/4534
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DOI
- 10.1007/s12303-008-0004-y
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Bibliographic Citation
- GEOSCIENCES JOURNAL, v.12, no.1, pp.25 - 31, 2008
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Publisher
- ASSOC KOREAN GEOSCIENCE SOC
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Subject
- SEA-SURFACE TEMPERATURE; GALAPAGOS CORALS; PACIFIC; REEF; CARBONATES; SKELETONS; RYUKYUS; CLIMATE
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Keywords
- paleo-SST proxy; coral; Porites; Platygyra; oxygen isotope ratios; Faviid corals
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Type
- Article
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Language
- English
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Document Type
- Article
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