 Sakau Seamount |    |
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| Index | SMNT-023S-1778E |
Classification | Small C5 Seamount |
| Location | 2º 20.21' S
177º 49.24' E |
Elongation
Irregularity | 3.49 ± 1.44
1.52 ± 0.40 |
| Plate Age | 124.9 - 126.1 Ma |
Oceanic Province | Abyssal Plain |
| Region | Gilberts Ridge |
Alternative Names | |
| Plate | Pacific Plate |
Age | |
| Tectonic Setting | Hotspot Trail |
Seamount Top | 2800 m |
| Volume | 2087 km3 |
Ocean Bottom | 5290 m |
Shelf Edge
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Volcanic Activity | Extinct |
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| | Description | | Sakau Seamount is located at 2¿ 20.0' S, 177¿ 49.1' E and is part of the Gilberts Ridge region on the Pacific Plate. It is 2723 m high with the top at -2700 m and the ocean bottom at 5423 m. The seamount has a volume of 3270 km3 and is very elongated with an azimuth of approximately 132¿. The edges of the seamount are irregular and two rifts were observed. The north side of the west trending rift is shallow and platform like. To the lower northeast, there is a saddle connecting the Sakau Seamount to an unnamed seamount. Dredge 24 was taken on the western rift. |
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Sakau Seamount -- Multibeam data merged with predicted satellite bathymetry |
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Sakau Seamount -- Multibeam bathymetry |
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Sakau Seamount -- Predicted satellite bathymetry |
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Sakau Seamount -- Residual bathymetry |
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Gilberts Ridge -- Multibeam data merged with predicted satellite bathymetry |
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Gilberts Ridge -- Multibeam bathymetry |
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Gilberts Ridge -- Predicted satellite bathymetry |
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Gilberts Ridge -- Residual bathymetry |
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Sakau Seamount -- Multibeam data merged with predicted satellite bathymetry |
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Sakau Seamount -- Multibeam bathymetry |
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Sakau Seamount -- Predicted satellite bathymetry |
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Sakau Seamount -- Residual bathymetry |
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Gilberts Ridge -- Multibeam data merged with predicted satellite bathymetry |
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Gilberts Ridge -- Multibeam bathymetry |
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Gilberts Ridge -- Predicted satellite bathymetry |
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Gilberts Ridge -- Residual bathymetry |
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High resolution 40Ar/39Ar ages for the Gilberts Ridge: sample AVON2-24-16 -- graphs, spreadsheet |
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High resolution 40Ar/39Ar ages for the Gilberts Ridge: sample AVON2-24-30 -- graphs, spreadsheet |
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| Depth |
Azimuth |
Area |
Length |
Width |
Elongation |
Contour |
Ellipse |
Irregularity |
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| m |
degrees |
km2 |
km |
km |
ratio |
km |
km |
ratio |
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| 3547 |
131.6 |
144.8 |
51.5 |
10.0 |
5.133 |
67.6 |
63.9 |
1.058 |
| 3796 |
134.2 |
241.6 |
40.1 |
13.8 |
2.913 |
117.8 |
66.8 |
1.762 |
| 4045 |
130.0 |
374.7 |
44.1 |
18.1 |
2.435 |
136.6 |
78.8 |
1.734 |
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| 44 % Multibeam Coverage |
3.49 ± 1.44 |
1.52 ± 0.40 |
| 2490 m High |
| 1 Summit |
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