| Abstract: | The advance of Hubbard Glacier, near Yakutat, Alaska, U.S.A., in spring 1986 blocked the entrance to Russell Fiord with an ice-and-sediment dam, behind which a lake formed. The water level in Russell Lake rose to 25.5 m a.s.l. The dam catastrophically failed in October 1986, releasing 5.4 km3 of water into Disenchantment Bay. High-resolution seismic-reflection profiles show a 7.5 km long channel system cut into and buried by glacimarine sediment, represented by continuous, parallel reflections. The chaotic seismic facies filling the channel is interpreted to be debris flow deposits. A gravity core from channel-overbank deposits contained sandy diamicton with mud clasts. Above the channel a 1-2 m thick sediment drape extends across the bay. Laminated mud, fining-upward sand beds and diamicton were recovered from this unit. The sediment-drape deposits were produced by suspension settling from turbid plumes and non-channelized turbidity currents generated by the outburst flood. |
| Genre: | Article |
| ProdID: | 70018714 |
| Citation Author: | Cowan, E. A.; Carlson, P. R.; Powell, R. D. |
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| Citation Language: | English |
| Citation Larger Work Title: | Annals of Glaciology |
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| Citation Search Results Text: | The marine record of the Russell Fiord outburst flood, Alaska, U.S.A; 1996; Article; Journal; Annals of Glaciology; Cowan, E. A.; Carlson, P. R.; Powell, R. D. |
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| Citation Volume: | 22 |
| Citation Year: | 1996 |
| Type: | citation/reference |
| Text: | The marine record of the Russell Fiord outburst flood, Alaska, U.S.A; 1996; Article; Journal; Annals of Glaciology; Cowan, E. A.; Carlson, P. R.; Powell, R. D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1996 00:00 -0600 |
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