Dataciones isotópicas de espeleotemas freáticos recolectados en cuevas costeras de Mallorca
[eng] Coastal caves in Majorca island (Spain) offer a great variety of phreatic speleothems that have recorded pleistocenic Mediterranean sea paleolevels. An extensive absolute dating program, including U-Series and ESR measurements, has been carried out on many majorcan phreatic s...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1993 |
| País: | España |
| Institución: | Universidad de las Islas Baleares |
| Repositorio: | Biblioteca Digital de les Illes Balears |
| OAI Identifier: | endins:Endins_1993v19p009 |
| Acceso en línea: | http://ibdigital.uib.es/greenstone/sites/oai-site/collect/endins/index/assoc/Endins_1/993v19p0/09.dir/Endins_1993v19p009.pdf http://ibdigital.uib.es/greenstone/library/collection/endins/document/Endins_1993v19p009 |
| Access Level: | acceso abierto |
| Palabra clave: | Geology |
| Sumario: | [eng] Coastal caves in Majorca island (Spain) offer a great variety of phreatic speleothems that have recorded pleistocenic Mediterranean sea paleolevels. An extensive absolute dating program, including U-Series and ESR measurements, has been carried out on many majorcan phreatic speleothems located between present-day sea level and +40 meters above. Ages obtained were ranging from 3.9 ka (postglacial phreatic speleothems situated near the present sea level) to over 300 ka corresponding to high sea levels, related to stages 9 or even 11 of marine oxygen isotope record. These results agree well with a chronological model previously proposed on the basis of altimetrical correlation between phreatic speleothems and ancient beach deposits of majorcan coast. These investigations demonstrate the relevance of chronological studies of phreatic speleothems, in order to establish sea level history during the Middle and Upper Pleistocene. |
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