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| Titel |
Early Holocene coral-based sea-level records in western Luzon, Philippines |
| VerfasserIn |
Shou-Yeh Gong, Chuan-Chou Shen, Fernando P. Siringan, Ke Lin, Maria I. T. Abigania |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250073598
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| Zusammenfassung |
| Reconstruction of deglacial sea level is critical for understanding the processes of paleoclimate change, ice volume wax-and-wane and mantle viscosity studies. Coral reefs have been used to provide late Pleistocene and Holocene sea-level curves, Here we present a new 230Th-dated coral-based deglacial sea-level records between 10,256 ± 50 yr BP to 6,654 ± 29 yr BP (before 1950 AD) of western Luzon, Philippines. The results indicate that the reef started growing about 10.3 kyr BP, and was about 29 m below present sea level (PSL), and grew upward at a rate of 6 m/kyr prior to 7.2 kyr BP, ~ 8 m below the PSL. The sea-level curve of Paraoir is consistent with those of northwestern Luzon and Western Australia coast. The sea-level records of Luzon, which is located in an island arc-setting, are significantly higher than those of Tahiti, which is located on oceanic crust. Different regional hydro-isostatic adjustment is most likely the reason of this discrepancy and should be corrected for better reconstruction of correction of Holocene sea level. |
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