Published 1979
| Published
Journal Article
Open
The Ice-Rock Interface and Basal Sliding Process as Revealed by Direct Observation in Bore Holes and Tunnels
- Creators
- Kamb, B.
- Engelhardt, H. F.
- Harrison, W. D.
Abstract
The glacier bed, where basal sliding occurs, was reached by cable-tool drilling and sand-pump bailing in seven bore holes in Blue Glacier, Olympic National Park, Washington. Basal sliding velocities measured by bore-hole photography and confirmed by inclinometry are unexpectedly low, ranging from 0.3 to 3.0 cm/day and averaging 1.0 cm/day. This is much less than about half the surface velocity of 15 cm/day, which was the sliding-rate expected from earlier deformation measurements in bore holes made by thermal drilling alone.
Additional Information
© 1979 International Glaciological Society.Attached Files
Published - icerock_interface_and_basal_sliding_process_as_revealed_by_direct_observation_in_bore_holes_and_tunnels.pdf
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icerock_interface_and_basal_sliding_process_as_revealed_by_direct_observation_in_bore_holes_and_tunnels.pdf
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Additional details
- Eprint ID
- 90965
- Resolver ID
- CaltechAUTHORS:20181116-112255845
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2018-11-16Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field