 Sua Seamount |    |
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| Index | SMNT-043N-1724E |
Classification | Very Small C2 Seamount |
| Location | 4º 16.13' N
172º 26.14' E |
Elongation
Irregularity | 1.80 ± 0.23
1.40 ± 0.08 |
| Plate Age | 147.9 - 148.2 Ma |
Oceanic Province | Abyssal Plain |
| Region | Gilberts Ridge |
Alternative Names | |
| Plate | Pacific Plate |
Age | |
| Tectonic Setting | Hotspot Trail |
Seamount Top | 1540 m |
| Volume | 671 km3 |
Ocean Bottom | 4060 m |
Shelf Edge
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Volcanic Activity | Extinct |
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| | Description | | Sua Seamount is located at 4¿ 16.3' N, 172¿ 26.4' E and is part of the Gilberts Ridge region on the Pacific Plate. The seamount is 2679 m high with the top at -1500 m and the ocean bottom at -4159 m. The Sua Seamount has a volume of 675 km3 and is moderately elongated in a northeast, southwest direction with an azimuth of approximately 53¿. There are two predominant sets of rifts, one oriented northeast, southwest and the other northwest, southeast. The top surface of the seamount comes to a peak. Sua is the southwestern most volcano on a common platform including the Niu and Pulu Guyots. There is a small saddle to the northeast connecting Sua to an unnamed seamount. |
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Sua Seamount -- Multibeam data merged with predicted satellite bathymetry |
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Sua Seamount -- Multibeam bathymetry |
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Sua Seamount -- Predicted satellite bathymetry |
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Sua 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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Sua Seamount -- Multibeam data merged with predicted satellite bathymetry |
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Sua Seamount -- Multibeam bathymetry |
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Sua Seamount -- Predicted satellite bathymetry |
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Sua 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 AVON2-3-7 -- 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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| 2296 |
50.0 |
50.5 |
11.4 |
6.5 |
1.735 |
39.8 |
26.6 |
1.496 |
| 2548 |
48.1 |
79.4 |
13.3 |
8.2 |
1.610 |
44.4 |
32.9 |
1.348 |
| 2800 |
66.5 |
117.8 |
20.8 |
10.1 |
2.058 |
57.8 |
42.2 |
1.370 |
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| 95 % Multibeam Coverage |
1.80 ± 0.23 |
1.40 ± 0.08 |
| 2520 m High |
| 1 Summit |
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