Variabilidad milenaria registrada por la fauna bentónica en el Golfo de León (Mediterráneo noroccidental) entre los eventos Heinrich 3 y 4
Variations in the benthic foraminifer assemblage have been studied from a 300m-depth core in the Gulf of Lions (PRGL1-4) during the last 41-28 kyr (between Heinrich events 4 and 3). The number of benthic foraminifers per gram, the infaunal/epifaunal ratio, and most of the benthic species relative ab...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2007 |
| País: | España |
| Institución: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/8379 |
| Acceso en línea: | http://hdl.handle.net/10272/8379 |
| Access Level: | acceso abierto |
| Palabra clave: | Benthic foraminifers Dansgaard-Oeschger cycles Heinrich events Gulf of Lions Western Mediterranean Sea |
| Sumario: | Variations in the benthic foraminifer assemblage have been studied from a 300m-depth core in the Gulf of Lions (PRGL1-4) during the last 41-28 kyr (between Heinrich events 4 and 3). The number of benthic foraminifers per gram, the infaunal/epifaunal ratio, and most of the benthic species relative abundance show a very clear Dansgaard-Oeschger variability. The stadial species suggest a well oxygenated oligotrophic environment with low organic matter content in the sediment. By contrast, the interstadial assemblage implies a more eutrophic environment with high organic matter and low oxygen content. No relevant differences are observed in the benthic fauna between Heinrich events and the other stadials |
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