Sea level change at Capo Caccia (NW Sardinia) and Mallorca (Balearic Islands) during oxygen isotope substage Se, based on Th/U datings of phreatic overgrowths on speleothems
Sea level changes during Last Interglacial (substage Se) have been documented in two sites of the Western Mediterranean area: Mallorca Island (Balearic Archipelago) and Capo Caccia area (NW Sardinia). Past sea stands have been recorded by overgrowths of phreatic crystallizations developing around pr...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | España |
| Institución: | Universidad de las Islas Baleares |
| Repositorio: | Biblioteca Digital de les Illes Balears |
| OAI Identifier: | monografiesHistoriaNatural:MonografiesSHNB_2007vol014p121 |
| Acceso en línea: | http://ibdigital.uib.es/greenstone/sites/oai-site/collect/monografiesHistoriaNatural/index/assoc/Monograf/iesSHNB_/2007vol0/14p121.dir/MonografiesSHNB_2007vol014p121.pdf http://ibdigital.uib.es/greenstone/library/collection/monografiesHistoriaNatural/document/MonografiesSHNB_2007vol014p121 |
| Access Level: | acceso abierto |
| Palabra clave: | Natural History |
| Sumario: | Sea level changes during Last Interglacial (substage Se) have been documented in two sites of the Western Mediterranean area: Mallorca Island (Balearic Archipelago) and Capo Caccia area (NW Sardinia). Past sea stands have been recorded by overgrowths of phreatic crystallizations developing around previously formed vadose speleothems. These carbonate coatings have been U-series dated, mostly using multicollector inductively coupled mass spectrometry. Two high sea stands have been recognised along the eastern coast of Mallorca at about 1.5 - 3 metres a.p.s.l, from 135 to 109 ka B.P., with a rapid episode of regression around 125 ka. The average duration of the older high stand episode can be estimated at 9.5 ka and that of the younger at 12.8 ka. So far only the younger stand has been found in Capo Caccia area at 4.3 m a.p.s.l., with a minimum duration of 3 ka. The difference in elevation of late Se high stand, recorded at Mallorca and Capo Caccia, can be only partly justified by neotectonic activity and is probably the result of different responses of the two areas, (owing to their different crustal thickness) to the change in the water loading characterising the glacial-interglacial cycles. |
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