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An autonomous multi-sensor subglacial probe: Design and preliminary results from Briksdalsbreen, Norway

An autonomous multi-sensor subglacial probe: Design and preliminary results from Briksdalsbreen, Norway
An autonomous multi-sensor subglacial probe: Design and preliminary results from Briksdalsbreen, Norway
The subglacial processes at Briksdalsbreen, Norway, are examined by a combination of sedimentology, thin section and scanning electron microscope (SEM) analysis of till samples from an exposed subglacial surface and from beneath the glacier. Studies of a fluted surface indicate that subglacial deformation is occurring on a field scale with flutes forming behind most clasts 0·6 m high. At the thin section scale (0·014–2·0 mm) it is seen that deformation is by rotation and attenuation and is dependent on till texture. At the SEM scale (0·1–0·4 mm) it is seen that erosion is controlled by abrasion and percussion which produces distinct grain ‘styles’ as part of an erosional continuum. Overall it is shown that rotation and attenuation is a dominant process at all scales and that the clast interactions associated with different scale perturbations within the shear zone control erosion and deposition, as well as landform and fabric production.
wireless sensor network, glaciology
0037-0746
389-397
Hart, J. K.
5bd98a7a-e120-42a9-b9d6-6869c52790b4
Martinez, K
5f711898-20fc-410e-a007-837d8c57cb18
Ong, R
60cfc024-7757-49c7-88af-b91e2cf8002e
Riddoch, A
a9c27ecc-5764-4f70-9cc7-cb2f0c4ea843
Rose, K.C
76b6320e-2396-4bef-8db4-ac40d590c092
Padhy, P
2e02a43b-3905-43b4-9d0c-96bae22b4638
Hart, J. K.
5bd98a7a-e120-42a9-b9d6-6869c52790b4
Martinez, K
5f711898-20fc-410e-a007-837d8c57cb18
Ong, R
60cfc024-7757-49c7-88af-b91e2cf8002e
Riddoch, A
a9c27ecc-5764-4f70-9cc7-cb2f0c4ea843
Rose, K.C
76b6320e-2396-4bef-8db4-ac40d590c092
Padhy, P
2e02a43b-3905-43b4-9d0c-96bae22b4638

Hart, J. K., Martinez, K, Ong, R, Riddoch, A, Rose, K.C and Padhy, P (2006) An autonomous multi-sensor subglacial probe: Design and preliminary results from Briksdalsbreen, Norway Sedimentology, 51, (178), pp. 389-397.

Record type: Article

Abstract

The subglacial processes at Briksdalsbreen, Norway, are examined by a combination of sedimentology, thin section and scanning electron microscope (SEM) analysis of till samples from an exposed subglacial surface and from beneath the glacier. Studies of a fluted surface indicate that subglacial deformation is occurring on a field scale with flutes forming behind most clasts 0·6 m high. At the thin section scale (0·014–2·0 mm) it is seen that deformation is by rotation and attenuation and is dependent on till texture. At the SEM scale (0·1–0·4 mm) it is seen that erosion is controlled by abrasion and percussion which produces distinct grain ‘styles’ as part of an erosional continuum. Overall it is shown that rotation and attenuation is a dominant process at all scales and that the clast interactions associated with different scale perturbations within the shear zone control erosion and deposition, as well as landform and fabric production.

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Published date: 2006
Keywords: wireless sensor network, glaciology
Organisations: Web & Internet Science

Identifiers

Local EPrints ID: 264617
URI: http://eprints.soton.ac.uk/id/eprint/264617
ISSN: 0037-0746
PURE UUID: 4e57fb0f-89aa-4897-81e4-f112b9ca69e4
ORCID for K Martinez: ORCID iD orcid.org/0000-0003-3859-5700

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Date deposited: 03 Oct 2007
Last modified: 10 Nov 2017 19:12

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Contributors

Author: J. K. Hart
Author: K Martinez ORCID iD
Author: R Ong
Author: A Riddoch
Author: K.C Rose
Author: P Padhy

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