 Seka Seamount |    |
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| Index | SMNT-025S-1791E |
Classification | Very Small B1 Seamount |
| Location | 2º 27.80' S
179º 05.92' E |
Elongation
Irregularity | 1.04 ± 0.02
1.27 ± 0.14 |
| Plate Age | 124.3 - 124.5 Ma |
Oceanic Province | Abyssal Plain |
| Region | Gilberts Ridge |
Alternative Names | |
| Plate | Pacific Plate |
Age | |
| Tectonic Setting | Hotspot Trail |
Seamount Top | 2590 m |
| Volume | 886 km3 |
Ocean Bottom | 5065 m |
Shelf Edge
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Volcanic Activity | Extinct |
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| | Description | | Seka Seamount is located at 2¿ 27.7' S, 179¿ 6.0' E and is part of the Gilberts Ridge region on the Pacific Plate. It is 2752 m high with the top at -2700 m and the ocean bottom at -5423 m. The seamount has a volume of 2281 km3 and is fairly round with little elongation or irregularity of the edges. The westward trending rift extends further than the measurement, and is very faint. Some volcanism appears to be present. |
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Seka Seamount -- Multibeam data merged with predicted satellite bathymetry |
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Seka Seamount -- Multibeam bathymetry |
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Seka Seamount -- Predicted satellite bathymetry |
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Seka 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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Seka Seamount -- Multibeam data merged with predicted satellite bathymetry |
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Seka Seamount -- Multibeam bathymetry |
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Seka Seamount -- Predicted satellite bathymetry |
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Seka 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 AVON2-25-6 -- graphs, spreadsheet |
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High resolution 40Ar/39Ar ages for the Gilberts Ridge: sample AVON2-25-47 -- graphs, spreadsheet |
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High resolution 40Ar/39Ar ages for the Gilberts Ridge: sample AVON2-25-48 -- 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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| 3580 |
214.6 |
36.6 |
7.7 |
7.4 |
1.036 |
30.8 |
21.5 |
1.437 |
| 3828 |
165.7 |
63.7 |
9.3 |
9.2 |
1.012 |
33.9 |
28.3 |
1.198 |
| 4075 |
84.8 |
94.8 |
11.7 |
11.0 |
1.060 |
40.6 |
34.5 |
1.177 |
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| 96 % Multibeam Coverage |
1.04 ± 0.02 |
1.27 ± 0.14 |
| 2475 m High |
| 1 Summit |
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