Probing the till beneath Black Rapids Glacier, Alaska, USA
Title | Probing the till beneath Black Rapids Glacier, Alaska, USA |
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Publication Type |
Journal Article
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Year |
2004
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Author(s) | William D Harrison , Martin Truffer, Keith Echelmeyer, Dale A Pomraning, Kevin A Abnett, Richard H Ruhkick |
Journal/ Publication |
Journal of Glaciology
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Volume |
50
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Issue |
171
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Pagination |
608-614
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Abstract |
A heavy down-hole hammer actuated from the surface by a light composition rope was used to place instrumented probes into the active, 7m thick, clast-rich till underlying a site on Black Rapids Glacier, Alaska, USA, where the ice is 500m thick. A till penetration of about 2.5m was obtained, and greater depths seem possible. The probes measured pore-water pressure and two axes of tilt, which they broadcasted, without wires, to a receiver just above the iceātill interface. |
DOI |
10.3189/172756504781829693
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URL | |
Categories | Subglacial Access, Subglacial Till/Bedrock Drilling |
Citation | William D Harrison , Martin Truffer, Keith Echelmeyer, Dale A Pomraning, Kevin A Abnett, Richard H Ruhkick ( 2004 ) Probing the till beneath Black Rapids Glacier, Alaska, USA. Journal of Glaciology , 50 , 171 , 608-614 . doi: 10.3189/172756504781829693 |
Lead Author |