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Jorry, Stephan J.; Droxler, Andre W.; Mallarino, Gianni; Dickens, Gerald R.; Bentley, Sam J.; Beaufort, Luc; Peterson, Larry C.; Opdyke, Bradley N.. |
Since Last Glacial Maximum (23-19 ka), Earth climate warming and deglaciation occurred in two major steps (Bolling-Allerod and Preboreal), interrupted by a short cooling interval referred to as the Younger Dryas (12.5-11.5 ka B. P.). In this study, three cores (MV-33, MV-66, and MD-40) collected in the central part of Pandora Trough (Gulf of Papua) have been analyzed, and they reveal a detailed sedimentary pattern at millennial timescale. Siliciclastic turbidites disappeared during the Bolling-Allerod and Preboreal intervals to systematically reoccur during the Younger Dryas interval. Subsequent to the final disappearance of the siliciclastic turbidites a calciturbidite occurred during meltwater pulse 1B. The Holocene interval was characterized by a lack... |
Tipo: Text |
Palavras-chave: Younger dryas event; Oxygen isotope records; Meltwater pulse 1a; Great barrier reef; Pacific warm pool; Carbonate platforms; Tropical atlantic; Surface salinity; Nicaragua rise; Caribbean sea. |
Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00079/19014/16592.pdf |
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Sonnenholzner, S.. |
En este informe se presentan los resultados obtenidos en los tres cruceros oceanográficos, T90/09/1 - T90/11/2 - T90/12/4. Se detalla la evolución de las condiciones de Temperatura Superficial del Mar (TSM), Salinidad Superficial del Mar, estructura térmica y halina subsuperficial, masas de agua y oxígeno. La TSM frente a la costa ecuatoriana se encontró dentro de los rangos normales para la época, a excepción de noviembre en el cual se registró un enfriamiento de las condiciones superficiales al sur de la región con anomalías de 1º-2ºC. El Frente Ecuatorial definido por las isotermas de 20º-26ºC estuvo bien desarrollado, ubicándose entre 1ºN-3ºS frente a la costa ecuatoriana, siendo esta mas intensa durante noviembre, producto del enfriamiento... |
Tipo: Journal Contribution |
Palavras-chave: Oceanographic data; Surface temperature; Surface salinity; Cruises. |
Ano: 1990 |
URL: http://hdl.handle.net/1834/3105 |
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