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| Detailed Seamount Information |
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| Wallis Guyot |    |
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| Index | SMNT-133S-1762W |
Classification | Intermediate B1 Guyot |
| Location | 13º 19.47' S
176º 11.45' W |
Elongation
Irregularity | 1.39 ± 0.06
1.25 ± 0.04 |
| Plate Age | |
Oceanic Province | Abyssal Plain |
| Region | Samoan Hotspot Trail |
Alternative Names | |
| Plate | Pacific Plate |
Age | 1 Ma |
| Tectonic Setting | Hotspot Trail |
Seamount Top | 0 m |
| Volume | 8495 km3 |
Ocean Bottom | 3510 m |
Shelf Edge
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Volcanic Activity | Extinct |
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| | Description | | Wallis Guyot is located at 13¿ 19.4'S, 176¿ 11.4'W and is part of the Samoan Hotspot Trail on the Pacific Plate. It is 3510 m high with the top at sealevel and ocean bottom at -3510 m. The seamount is intermediate in size with a volume of 8494 km3. It is fairly round with little elongation and an azimuth of approximately 156¿. The edges of the seamount are slightly irregular. Wallis has a well-developed barrier reef around it. |
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Wallis Guyot -- Multibeam data merged with predicted satellite bathymetry |
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Wallis Guyot -- Multibeam bathymetry |
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Wallis Guyot -- Predicted satellite bathymetry |
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Wallis Guyot -- 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 2 -- Multibeam data merged with predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 2 -- Multibeam bathymetry |
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Samoan Hotspot Trail -- Tile 2 -- Predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 2 -- Residual bathymetry |
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Samoan Hotspot Trail -- Tile 3 -- Multibeam data merged with predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 3 -- Multibeam bathymetry |
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Samoan Hotspot Trail -- Tile 3 -- Predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 3 -- Residual bathymetry |
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Wallis Guyot -- Multibeam data merged with predicted satellite bathymetry |
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Wallis Guyot -- Multibeam bathymetry |
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Wallis Guyot -- Predicted satellite bathymetry |
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Wallis Guyot -- 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 2 -- Multibeam data merged with predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 2 -- Multibeam bathymetry |
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Samoan Hotspot Trail -- Tile 2 -- Predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 2 -- Residual bathymetry |
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Samoan Hotspot Trail -- Tile 3 -- Multibeam data merged with predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 3 -- Multibeam bathymetry |
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Samoan Hotspot Trail -- Tile 3 -- Predicted satellite bathymetry |
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Samoan Hotspot Trail -- Tile 3 -- Residual bathymetry |
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Brocher, T.M. (1985). On the age progression of the seamounts west of the Samoan Islands, SW Pacific. In: Investigations of the Northern Melanesian Borderland. Brocher, T.M. (Editors), Circum-Pacific Council for Energy and Mineral Resources, Houston. 3: 173-185. |
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Brocher, T.M. and Holmes, R. (1985). Tectonic and geochemical framework of the Northern Melanesian Borderland; an overview of the KK820316 Leg 2 objectives and results. In: Investigations of the northern Melanesian Borderland. Brocher, T.M. (Editors), Circum-Pacific Council for Energy and Mineral Resources, Houston. 3: 1-11. |
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Chaproniere, G.C.H. (1985). Late Tertiary and Quaternary foraminiferal biostratigraphy and paleobathymetry of cores and dredge samples from Cruise KK820316 Leg 2. In: Investigations of the northern Melanesian Borderland. Brocher, T.M. (Editors), Circum-Pacific Council for Energy and Mineral Resources, Houston. 3: 103-122. |
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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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Duncan, R.A. (1985). Radiometric ages from volcanic rocks along the New Hebrides-Samoa Lineament. In: Investigations of the northern Melanesian Borderland. Brocher, T.M. (Editors), Circum-Pacific Council for Energy and Mineral Resources, Houston. 3: 67-76. |
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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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Keating, B.H. (1987). Summary of radiometric ages from the Pacific. In: Intergovernmental Oceanographic Comission technical series. UNESCO. 32. |
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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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Sinton, J.M., Johnson, K.T.M. and Price, R.C. (1985). Petrology and geochemistry of volcanic rocks from the Northern Melanesian Borderland. In: Investigations of the northern Melanesian Borderland. Brocher, T.M. (Editors), Circum-Pacific Council for Energy and Mineral Resources, Houston. 3: 35-65. |
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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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| 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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| 1404 |
159.4 |
907.2 |
45.3 |
34.3 |
1.320 |
130.4 |
108.3 |
1.204 |
| 1755 |
157.1 |
1220.3 |
53.9 |
37.6 |
1.433 |
162.4 |
126.8 |
1.280 |
| 2106 |
154.0 |
1561.1 |
59.3 |
41.9 |
1.415 |
182.1 |
143.2 |
1.271 |
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| 25 % Multibeam Coverage |
1.39 ± 0.06 |
1.25 ± 0.04 |
| 3510 m High |
| 1 Summit |
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