| | Ultramafic rocks | (4) |
| | Underwater exploration | (1) |
| | Underwater explosions | (1) |
| | Underwater habitats | (2) |
| | Uplift | (24) |
| | Upwelling | (5) |
| | Uranium | (1) |
| | Uranium-234/Uranium-238 ratio | (1) |
| | Urbanization | (1) |
| | Urban runoff | (1) |
| | Vegetation cover | (3) |
| | Velocity | (2) |
| | Venom apparatus | (2) |
| | Vernacular names | (16) |
| | Vertical distribution | (1) |
| | Vertical profiles | (1) |
| | Vertical tectonics | (6) |
| | Vibratory corers | (1) |
| | Videotape recordings | (1) |
| | Viruses | (1) |
| | Volcanic belts | (2) |
| | Volcanic eruptions | (2) |
| | Volcanic glass | (1) |
| | Volcanic islands | (6) |
| | Volcanic rocks | (26) |
| | Volcanism | (72) |
| | Volcanoes | (7) |
| | Volcanogenic deposits | (7) |
© 2009 PIMRIS Coordinator, University of the South Pacific, Suva, Fiji, Tel (679) 323 2934 or email pimris@usp.ac.fj.
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