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Preliminary bathymetry of Northwestern Fiord and Neoglacial changes of Northwestern Glacier

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Preliminary bathymetry of Northwestern Fiord and Neoglacial changes of Northwestern Glacier; 1980; OFR; 80-414; Post, Austin

Summary

The first preliminary bathymetry (at 1:20,000 scale) and other scientific investigations of Northwestern Fiord, Alaska, were conducted by the Research Vessel Growler in 1978, disclosing this 10.5-mile-long branched waterway to be a deep basin enclosed by a terminal-moraine shoal. The basin was formerly filled by Northwestern Glacier, which began a drastic retreat around 1909 and reached the head of the main arm around 1960. Soundings and profiles show the main channel to be as much as 970 feet deep and to have the typical U shape of a severely glacially eroded valley; since the glacier 's retreat, sediments have formed nearly level deposits in the deepest reaches, while the rest of the basin has a hard, rocky bottom. Preneoglacial [...]

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Austin Post

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Type Scheme Key
local-index unknown ofr80414
local-pk unknown 41294
series unknown Open-File Report

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journalOpen-File Report
edition-
languageENGLISH
citationTypeReport

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