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Puzzling mass movement features in the Navarinsky Canyon head, Bering Sea (1982)

Carlson, Paul R. ; Karl, Herman A. ; Edwards, Brian D.

Springer

Geo-marine letters 2 (1982), S. 123-127

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ISSN: 1432-1157

Source: Springer Online Journal Archives 1860-2000

Topics: Geosciences

Notes: 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.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02462752

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