Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [239869] |
The Glacial-Interglacial transition and Holocene environmental changes in sediments from the Gulf of Taranto, central Mediterranean
Goudeau, M.-L.S.; Grauel, A.-L.; Tessarolo, C.; Leider, A.; Chen, L.; Bernasconi, S.M.; Versteegh, G.J.M.; Zonneveld, K.A.F.; Boer, W.; Alonso-Hernandez, C.M.; De Lange, G.J. (2014). The Glacial-Interglacial transition and Holocene environmental changes in sediments from the Gulf of Taranto, central Mediterranean. Mar. Geol. 348: 88-102. dx.doi.org/10.1016/j.margeo.2013.12.003
In: Marine Geology. Elsevier: Amsterdam. ISSN 0025-3227; e-ISSN 1872-6151, meer
|  |
| Author keywords |
Holocene climate variability; hydrological changes; NAO; high-resolutionrecords; XRF scans; central Mediterranean Sea |
| Auteurs | | Top |
- Goudeau, M.-L.S.
- Grauel, A.-L.
- Tessarolo, C.
- Leider, A.
|
- Chen, L.
- Bernasconi, S.M.
- Versteegh, G.J.M.
- Zonneveld, K.A.F.
|
- Boer, W., meer
- Alonso-Hernandez, C.M.
- De Lange, G.J.
|
| Abstract |
An extensive, high-resolution, sedimentological-geochemical survey was done using geo-acoustics, XRF-core scans, ICP-AES, AMS C-14-dating and grain size analyses of sediments in 11 cores from the Gulf of Taranto, the southern Adriatic Sea, and the central Ionian Sea spanning the last 16 cal. ka BP. Comparable results were obtained for cores from the Gallipoli Shelf (eastern Gulf of Taranto), and the southern Adriatic Sea suggesting that the dominant provenance of Gallipoli Shelf sediments is from the western Adriatic mud belt. The Pb-210 and C-14-dated high-accumulation-rate sediments permit a detailed reconstruction of climate variability over the last 16 cal. ka BP. Although, the Glacial-Interglacial transition is generally dry and stable these conditions are interrupted by two phases of increased detrital input during the Bolling-Allerod and the late Younger Dryas. The event during the Younger Diyas period is characterized by increased sediment inputs from southern Italian sources. This suggests that run-off was higher in southern- compared to northern Italy. At approximately similar to 7 cal. ka BP, increased detrital input from the Adriatic mud belt, related to sea level rise and the onset of deep water formation in the Adriatic Sea, is observed and is coincident with the end of sapropel S1 formation in the southern Adriatic Sea. During the mid-to-late Holocene we observed millennial-scale events of increased detrital input, e.g. during the Roman Humid Period, and of decreased detrital input, e.g., Medieval Warm Period. These dry/wet spells are consistent with variability in the North Atlantic Oscillation (NAO). A negative state of the NAO and thus a more advanced penetration of the westerlies into the central Mediterranean, that result in wet conditions in the research area concord with events of high detrital input e.g., during the Roman Humid Period. In contrast, a positive state of the NAO, resulting in dry conditions in the Mediterranean, dominated during events of rapid climate change such as the Medieval Warm Period and the Bronze Age. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
