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USGS · 70000676

Puzzling mass movement features in the Navarinsky Canyon head, Bering Sea

P.R. Carlson·Herman A. Karl·B. D. Edwards
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Abstract

Two types of morphologic features in the head of Navarinsky Canyon are attributed to mass movement of near-surface sediment. A series of pull-aparts is located downslope of large sand waves. These pull-aparts, possibly induced by liquefaction, affect the upper 5 to 10 m of sandy sediment (water depths 350 to 600 m) on a 1o slope. A hummocky elongate mound of muddy sand (water depths 550 to 800 m) contains chaotic internal reflectors to a subbottom depth of 30 to 40 m and possibly is the product of a shallow slide. We speculate that Holocene seismicity is the likely triggering mechanism. ?? 1982 A. M. Dowden, Inc.

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P.R. Carlson, Herman A. Karl, B. D. Edwards. 1982. Puzzling mass movement features in the Navarinsky Canyon head, Bering Sea. https://doi.org/10.1007/bf02462752

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