Postglacial mass movements and depositional environments in a high-latitude fjord system – Hardangerfjorden, Western Norway

High resolution acoustic data and a 15.7m long sediment core from the Hardangerfjorden system, western Norway, have been analyzed to increase our knowledge on depositional environments, submarine mass movement trigger mechanisms and submarine mass movement frequencies in high latitude fjord systems....

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Bibliographic Details
Published in:Marine geology 2016-09, Vol.379, p.157-175
Main Authors: Bellwald, Benjamin, Hjelstuen, Berit Oline, Sejrup, Hans Petter, Haflidason, Haflidi
Format: Article
Language:English
Subjects:
Avalanches
Brackish
Depositional environment
Dynamical systems
Earthquake
Failure
Fjord
Fjords
Holocene
Marine
Mass transport
Movements
Rock
Sedimentation
Sediments
Trigger mechanism
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Summary:High resolution acoustic data and a 15.7m long sediment core from the Hardangerfjorden system, western Norway, have been analyzed to increase our knowledge on depositional environments, submarine mass movement trigger mechanisms and submarine mass movement frequencies in high latitude fjord systems. The seismic profiles analyzed show that an up to 160m thick glacimarine-dominated unit, of probably Younger Dryas age, has been deposited above the acoustic basement. A
ISSN:0025-3227
1872-6151
DOI:10.1016/j.margeo.2016.06.002