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| Detailed Seamount Information |
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| Tutuila Atoll |    |
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| Index | SMNT-143S-1707W |
Classification | Small C5 Atoll |
| Location | 14º 17.53' S
170º 41.38' W |
Elongation
Irregularity | 3.09 ± 0.23
1.56 ± 0.05 |
| Plate Age | |
Oceanic Province | Abyssal Plain |
| Region | Samoan Hotspot Trail |
Alternative Names | |
| Plate | Pacific Plate |
Age | |
| Tectonic Setting | Hotspot Trail |
Seamount Top | 0 m |
| Volume | 4957 km3 |
Ocean Bottom | 2860 m |
Shelf Edge
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Volcanic Activity | Extinct |
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| | Description | | Tutuila Atoll is located at 14¿ 17.5' S, 170¿ 41.4' W and is part of the Samoan Hotspot Trail on the Pacific Plate. The seamount is 2860 m in height with the top at sealevel and the ocean bottom at -2860 m. It is fairly small with a volume of 4957 km3. The seamount is very elongated in a northeast, southwest direction with an azimuth of approximately 78¿. The edges of the seamount are moderately irregular. |
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Tutuila Atoll -- Multibeam data merged with predicted satellite bathymetry |
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Tutuila Atoll -- Multibeam bathymetry |
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Tutuila Atoll -- Predicted satellite bathymetry |
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Tutuila Atoll -- Residual bathymetry |
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American Samoa -- Multibeam data merged with predicted satellite bathymetry |
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American Samoa -- Multibeam bathymetry |
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American Samoa -- Predicted satellite bathymetry |
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American Samoa -- Residual bathymetry |
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Samoan Hotspot Trail -- Multibeam bathymetry |
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Samoan Hotspot Trail -- Predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 1 -- Multibeam data merged with predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 1 -- Multibeam bathymetry |
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Samoan Hotspot Trail -- Tile 1 -- Predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 1 -- Residual bathymetry |
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Tutuila Atoll -- Multibeam data merged with predicted satellite bathymetry |
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Tutuila Atoll -- Multibeam bathymetry |
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Tutuila Atoll -- Predicted satellite bathymetry |
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Tutuila Atoll -- Residual bathymetry |
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American Samoa -- Multibeam data merged with predicted satellite bathymetry |
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American Samoa -- Multibeam bathymetry |
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American Samoa -- Predicted satellite bathymetry |
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American Samoa -- Residual bathymetry |
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Samoan Hotspot Trail -- Multibeam bathymetry |
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Samoan Hotspot Trail -- Predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 1 -- Multibeam data merged with predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 1 -- Multibeam bathymetry |
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Samoan Hotspot Trail -- Tile 1 -- Predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 1 -- Residual bathymetry |
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Palacz, Z.A. and Saunders, A.D. (1986). Coupled trace element and isotope enrichment in the Cook-Austral-Samoa islands, Southwest Pacific. Earth and Planetary Science Letters 79(3-4): 270-280. doi: 10.1016/0012-821X(86)90185-8. |
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Natland, J.H. (1980). The progression of volcanism in the Samoan linear volcanic chain. In: The Jackson Volume. Irving, A.J. and Dungan, M.A. (Editors), Kline Geology Laboratory, Yale University, New Haven. 280-A(2): 709-735. |
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Walker, G.P.L. and Eyre, P.R. (1995). Dike complexes in American Samoa. Journal of Volcanology and Geothermal Research 69(3-4): 241-254. doi: 10.1016/0377-0273(95)00041-0. |
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Clouard, V. and Bonneville, A. (2001). Ages of seamounts, islands and plateaus on the Pacific plate. 1-42. |
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Keating, B.H. (1987). Summary of radiometric ages from the Pacific. In: Intergovernmental Oceanographic Comission technical series. UNESCO. 32. |
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Hart, S.R. (2004). Collaborative research: The Samoan Hotspot, Past and Present. In: Collaborative research: The Samoan Hotspot, Past and Present. Woods Hole Oceanographic Institution, Woods Hole, MA. |
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Hart, S., Coetzee, M., Workman, R., Blusztajn, J., Johnson, K., Sinton, J., Steinberger, B. and Hawkins, J. (2004). Genesis of the Western Samoa seamount province: age, geochemical fingerprint and tectonics. Earth and Planetary Science Letters 227(1-2): 37-56. doi: 10.1016/j.epsl.2004.08.005. |
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Workman, R.K., Hart, S.R., Jackson, M., Regelous, M., Farley, K.A., Blusztajn, J., Kurz, M. and Staudigel, H. (2004). Recycled metasomatized lithosphere as the origin of the Enriched Mantle II (EM2) end-member: Evidence from the Samoan Volcanic Chain. Geochemistry Geophysics Geosystems 5: doi: 10.1029/2003GC000623. issn: 1525-2027. |
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Keating, B.H. (1991). Insular geology of the Line Islands. In: Geology and Offshore mineral resources of the central Pacific basin, Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series. Keating, B.H. and Bolton, B.R. (Editors), Springer-Verlag, New York. 14: 77-99. |
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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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| 1144 |
78.7 |
510.1 |
63.8 |
19.2 |
3.313 |
164.3 |
101.4 |
1.619 |
| 1430 |
78.7 |
660.8 |
67.0 |
21.6 |
3.101 |
175.5 |
112.9 |
1.556 |
| 1716 |
78.1 |
841.7 |
68.3 |
24.0 |
2.851 |
188.3 |
123.9 |
1.520 |
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| 75 % Multibeam Coverage |
3.09 ± 0.23 |
1.56 ± 0.05 |
| 2860 m High |
| 1 Summit |
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