Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4532843 | Continental Shelf Research | 2010 | 17 Pages |
Abstract
Correlations in proximal records in the Bay of Vilaine assess the connection between coastal sedimentary dynamics, climatic conditions and anthropogenic activities during the MWP. We match the preservation of clay deposits to increased river-borne suspended matter transported to the estuary probably as a result of accelerated land-use development (higher soil erosion) in the catchment area between ca. 880 and 1050 AD. Because the preservation of estuarine sedimentary successions is favoured when coastal wave sediment reworking is minimal, it is proposed that the prevailing climatic regime in south Brittany during the MWP likely resembled to that of the preferred negative phase of the North Atlantic Oscillation (NAO). Our data are fairly consistent with other late Holocene records from northern Europe including the Atlantic seaboard. However, they outline the difficulty in interpreting climatic and anthropogenic signatures in coastal sedimentary records where high-resolution chronologies required to unravel their respective influences are still missing.
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Physical Sciences and Engineering
Earth and Planetary Sciences
Geology
Authors
Philippe Sorrel, Bernadette Tessier, François Demory, Agnès Baltzer, Firas Bouaouina, Jean-Noël Proust, David Menier, Camille Traini,