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(Article of periodic en Anglais - 2012)

Document title

Arctic rockwall retreat rates estimated using laboratory-calibrated ERT measurements of talus cones in Longyeardalen, Svalbard

Authors(s) and Affiliation(s)

SIEWERT M.B. (1 2) ; KRAUTBLATTER M. (1 3) ; CHRISTIANSEN H.H. (2 4) ; ECKERSTORFER M. (2 4) ;
(1) Dep. of Geography, Univ., Bonn, ALLEMAGNE
(2) Geology Dep., Univ. Centre in Svalbard, Longyearbyen, NORVEGE
(3) Engineering Geology, Technische Univ., München, ALLEMAGNE
(4) Inst. of Geosciences, Univ., Oslo, NORVEGE

Abstract

Here the AA. investigate Holocene rockwall retreat of exposed arctic sandstone cliffs in Longyeardalen, central Svalbard and apply laboratory-calibrated electrical resistivity tomography (ERT) to determine talus sediment thickness. Temperature-resistivity functions of 2 sandstone samples are measured in the laboratory and compared with borehole temperatures from the talus slope. High-resolution LiDAR-scanning and ERT subsurface information were collated in a GIS to interpolate the bedrock surface and to calculate the sediment volume of the talus cones. The resulting volumes were referenced to source areas to calculate rockwall retreat rates. The rock mass strength was estimated for the source areas

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2012, vol. 37, no14 [pp. 1542-1555]

Bibliographic references : 2 p.

Collation : 12 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3297

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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