Climatic fluctuations recorded in the sediment fillings of Loch Sunart (northwestern Scotland) since 20,000 BP.

Over the last 20,000 yr, Loch Sunart has accumulated an important record of Late Pleistocene and Holocene sedimentation characteristic of sea lochs on the western coast of Scotland. A seismic survey conducted using a Seistec Boomer system has demonstrated five distinct sediment-acoustic facies in th...

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Bibliographic Details
Published in:Comptes Rendus Geoscience
Main Authors: Mokeddem, Zohra, Baltzer, Agnes, Clet-Pellerin, Martine, Walter-Simonnet, Anne Veronique, Bates, C Richard, Balut, Yvon, Bonnot-Courtois, Chantal
Format: Article in Journal/Newspaper
Language:English
Published: 2007
Subjects:
sedimentation
pollen
C-14
Seistec Boomer
seismic facies
cooling events
palaeoenvironments
RADIOCARBON AGE CALIBRATION
GLACIER FLUCTUATIONS
WESTERN SCOTLAND
NORTH-ATLANTIC
SEA LOCH
HOLOCENE
EVENT
VARIABILITY
North Atlantic
Online Access:https://risweb.st-andrews.ac.uk/portal/en/researchoutput/climatic-fluctuations-recorded-in-the-sediment-fillings-of-loch-sunart-northwestern-scotland-since-20000-bp(882ea96a-f72d-4da6-83b9-60f19c88a1f9).html
https://doi.org/10.1016/j.crte.2006.11.004
http://www.scopus.com/inward/record.url?scp=33947579558&partnerID=8YFLogxK
Description
Summary:Over the last 20,000 yr, Loch Sunart has accumulated an important record of Late Pleistocene and Holocene sedimentation characteristic of sea lochs on the western coast of Scotland. A seismic survey conducted using a Seistec Boomer system has demonstrated five distinct sediment-acoustic facies in the loch. These facies have been correlated with sediment sequences identified in a long Calypso core (12 m) acquired from the RV Marion Dufresne. Grain-size and pollen analyses, accompanied with three C-14 dates, have yielded information on the patterns of sedimentation since the Late Glacial Maximum. In addition, these data have identified three significant cooling events since the Younger Dryas: 8200, 5500 and 3500 cal. yr BP and. the Little Ice Age.

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