Postglacial mass movements and depositional ...

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May 11, 2016 - Benjamin Bellwald, Berit Oline Hjelstuen, Hans Petter Sejrup, Haflidi ... Hans Petter Sejrup, Department of Earth Science, University of Bergen, ...
    Postglacial mass movements and depositional environments in a high-latitude fjord system – Hardangerfjorden, Western Norway Benjamin Bellwald, Berit Oline Hjelstuen, Hans Petter Sejrup, Haflidi Haflidason PII: DOI: Reference:

S0025-3227(16)30116-5 doi: 10.1016/j.margeo.2016.06.002 MARGO 5475

To appear in:

Marine Geology

Received date: Revised date: Accepted date:

6 October 2015 11 May 2016 4 June 2016

Please cite this article as: Bellwald, Benjamin, Hjelstuen, Berit Oline, Sejrup, Hans Petter, Haflidason, Haflidi, Postglacial mass movements and depositional environments in a high-latitude fjord system – Hardangerfjorden, Western Norway, Marine Geology (2016), doi: 10.1016/j.margeo.2016.06.002

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Postglacial Mass Movements and Depositional Environments in a High-Latitude Fjord System – Hardangerfjorden, Western Norway

Department of Earth Science, University of Bergen, Norway [email protected]

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Benjamin Bellwald1, Berit Oline Hjelstuen1, Hans Petter Sejrup1 and Haflidi Haflidason1

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Benjamin Bellwald, Department of Earth Science, University of Bergen, Allégaten 41, N5007 Bergen; [email protected]

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Berit Oline Hjelstuen, Department of Earth Science, University of Bergen, Allégaten 41, N5007 Bergen; [email protected]

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Hans Petter Sejrup, Department of Earth Science, University of Bergen, Allégaten 41, N-5007 Bergen; [email protected]

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Haflidi Haflidason, Department of Earth Science, University of Bergen, Allégaten 41, N-5007 Bergen; [email protected]

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ACCEPTED MANUSCRIPT Abstract High resolution acoustic data and a 15.7 m long sediment core from the Hardangerfjorden system, western Norway, have been analyzed to increase our knowledge on depositional environments,

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submarine mass movement trigger mechanisms and submarine mass movement frequencies in high latitude fjord systems. The seismic profiles analyzed show that an up to 160 m thick glacimarine-

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dominated unit, of probably Younger Dryas age, has been deposited above the acoustic basement. A