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Erosion and slope instability on Horizon Guyot, Mid-Pacific Mountains

Geo-Marine Letters

By:
, , , ,
DOI: 10.1007/BF02238000

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Abstract

Seismic-reflection profiles, sediment cores, and current velocities were assessed to study the impact of erosion and sediment redistribution on the pelagic sediment cap of Horizon Guyot, a flat-topped submarine volcanic ridge in the Mid-Pacific Mountains. These processes seem to concentrate their effect around the rim of the sediment cap. Sediment slumping occurs on the northwest perimeter of the guyot's sediment cap. Slope stability analysis suggests that if overconsolidation on Horizon Guyot is the result of current reworking or if local undercutting by bottom currents steepens the sea floor declivity, the sediment cap may be unstable during infrequent earthquake loading, transporting sediment from the guyot summit to the abyssal sea floor. ?? 1988 Springer-Verlag New York Inc.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Erosion and slope instability on Horizon Guyot, Mid-Pacific Mountains
Series title:
Geo-Marine Letters
DOI:
10.1007/BF02238000
Volume
8
Issue:
1
Year Published:
1988
Language:
English
Publisher location:
Springer-Verlag
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1
Last page:
10
Number of Pages:
10