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Submarine slides on volcanic islands - a source for mega-tsunamis in the Quaternary

Submarine slides on volcanic islands - a source for mega-tsunamis in the Quaternary
Coastal geomorphology ; Island ; Mass movement ; Natural hazards ; Quaternary ; Sea floor ; Tsunami ; Volcanism
This paper overviews the distribution, magnitude, recurrence interval, and age of large submarine slides on volcanic islands and their potential for the generation of mega-tsunamis during the Quaternary. This paper also discusses the geomorphic

Seismicity and submarine Volcanic activity in French Polynesia

Seismicity and submarine Volcanic activity in French Polynesia

Morphological analysis and related volcanic features of the Kolumbo submarine volcanic chain (NE of Santorini Island, Aegean Volcanic Arc)

Morphological analysis and related volcanic features of the Kolumbo submarine volcanic chain (NE of Santorini Island, Aegean Volcanic Arc)
Aegean Sea ; Bathymetry ; Greece ; Mediterranean Sea ; Plate tectonics ; Sea floor ; Slope gradient ; Submarine geomorphology ; Volcanism ; Volcano
Bathymétrie ; Egée mer ; Fond sous-marin ; Grèce ; Géomorphologie sous-marine ; Méditerranée ; Pente de versant ; Tectonique de plaques ; Volcan ; Volcanisme
Batimetría ; El Mediterranéo ; Fondo submarino ; Geomorfología submarina ; Grecia ; Inclinación de la vertiente ; Mar Egeo ; Tectónica de placas ; Volcanismo ; Volcán
The remotely operated vehicles (ROVs) Hercules and Argus of O.E.T. (Ocean Exploration Trust) were used to explore the slopes,summits and craters of 17 of the 19 submarine volcanic centres identified on multibeam map of the areawith E/V Nautilus
(NA007) in August 2010. In this paper the AA. present some of the most interesting submarine morphological features along the Kolumbo Volcanic Chain, located in a small, elongated, rifted basin northeast of Santorini Island, Greece.

Episodic Aleutian Ridge igneous activity: Implications of Miocene and younger submarine volcanism West of Buldir Island

Episodic Aleutian Ridge igneous activity: Implications of Miocene and younger submarine volcanism West of Buldir Island

Exploring the Avyssos-Yali-Strogyli submarine volcanic complex at the eastern edge of the Aegean Volcanic Arc

Exploring the Avyssos-Yali-Strogyli submarine volcanic complex at the eastern edge of the Aegean Volcanic Arc
Aegean Sea ; Bathymetry ; Graben ; Greece ; Mediterranean Sea ; Neotectonics ; Quaternary ; Sea floor ; Stratigraphy ; Submarine geomorphology ; Volcanism ; Volcano
Bathymétrie ; Egée mer ; Fond sous-marin ; Fossé tectonique ; Grèce ; Géomorphologie sous-marine ; Méditerranée ; Néotectonique ; Quaternaire ; Stratigraphie ; Volcan ; Volcanisme
Batimetría ; Cuaternario ; El Mediterranéo ; Estratigrafía ; Fondo submarino ; Foso tectónico ; Geomorfología submarina ; Grecia ; Mar Egeo ; Neotectónica ; Volcanismo ; Volcán
This paper reports the results of the Remotely Operated Vehicle (ROV) exploration combined with multibeam data, providing new information about the main morphological characteristics of the Nisyros submarine volcanic centres. ROV exploration
of hydrothermal activity. Heavy biogenic encrustations cover the volcanic rock outcrops on the flanks of both Yali and Strongyli. Analysis of recovered samples will provide information about their relationship to the geology of the nearby islands.

The Balearic Promontory geomorphology (western Mediterranean) : morphostructure and active processes

Baleares ; Bathymetry ; Cenozoic ; Continental margin ; Marine sedimentation ; Mass movement ; Mediterranean Sea ; Sea floor ; Seamount ; Sediment transport ; Structural geomorphology ; Submarine geomorphology ; Submarine volcanism ; Tectonics
In this paper, a detailed study of the submarine geomorphology surrounding the Balearic Promontory, a northeast prolongation of the Neogene Betic Range in southern Spain, is presented from a series of high-resolution tools including swath bathymetry
and seismic reflection profiling. The study identifies the main features of the continental shelf, slope and basins surrounding the Balearic Islands. The swath data show that tectonics plays an important role in shaping the submarine slopes of Eivissa

Characterising the irregular coastlines of volcanic ocean islands

Characterising the irregular coastlines of volcanic ocean islands
Data base ; Earthquake ; Island ; Landslide ; Oceanic ridge ; Plate tectonics ; Rift ; Shoreline ; Submarine volcanism ; Tectonics ; Volcanism ; World
Volcanic ocean islands grow into irregular shapes because of eruption along radiating volcanic rift zones, caldera collapse, slope failure, coalescence of adjacent volcanoes and marine and subaerial erosion. With the aim of searching for variations

Meeresgeologie des Nordpazifiks

Earthquake ; Geology ; Geomorphology ; Marine sedimentation ; Pacific Region ; Plate tectonics ; Submarine geomorphology ; Submarine volcanism

Geomorfologija Ohotomorskogo sklona o-va Iturup (Bol'šaja Kuril'skaja grjada)

Continental slope ; Island arcs ; Kuril Islands ; Pacific Ocean;Pacific Region ; Sea floor;Ocean floor ; Submarine canyons ; Submarine volcanism
Données nouvelles concernant le versant ouest de la Grande chaîne des Kouriles, côté mer d'Okhotsk. Etude de la géomorphologie de quelques volcans sous-marins. Les monts sous-marins à sommet plat sont appelés guyots d'arc insulaire. Leur disposition

Mass wasting and subaerial weathering in guyot formation: the Hawaiian and Canary ridges as examples

Atlantic Ocean ; Bathymetry ; Canary Islands ; Hawaii ; Mass movement ; Model ; Oceanic ridge ; Pacific Region ; Plate tectonics ; Sea floor ; Seamount ; South Pacific Ocean ; Submarine geomorphology ; Submarine volcanism ; Topography ; Volcanism

A near-ridge origin for seamounts at the southern terminus of the Pratt-Welker Seamount Chain, northeast Pacific Ocean

Alaska ; Geochemistry ; Gulf ; Isotope analysis ; Lava ; Oceanic ridge ; Pacific Region ; Petrography ; Seamount ; Submarine geomorphology ; Submarine volcanism ; Trace-element ; Volcanism

Piccole mutazioni della geografia mediterranea causate dal vulcanismo sottomarino

Earthquake ; Historical geography ; Mediterranean Sea ; Submarine geology ; Volcanism

Volcanoes : a planetary perspective

Caldera ; Catastrophe ; Geochemistry ; Global change ; Lava flow ; Natural hazards ; Plate tectonics ; Pyroclastic ; Solar system ; Submarine volcanism ; Typology ; Volcanic eruption ; Volcanism
D'après son expérience personnelle, l'A. étudie les éruptions volcaniques dans le monde et leurs différentes formes. Au-delà du spectaculaire, l'A. tente d'élucider pourquoi les volcans existent et quel est leur rôle. Il tente d'interpréter les

Geomorphologic characteristics of the Kyushu-Palau Ridge, Philippine Sea

Bathymetry ; Geochemistry ; Oceanic ridge ; Pacific Region ; Sea floor ; Seismic reflection ; Submarine volcanism ; Volcanic rock
are presented. Three types of volcanic edifices are distinguished, large plateau-like Hawaïan-type shield volcanoes and two different stratovolcano types. By chemical composition the rocks of the shield volcanoes can be classified as Hawaiian-type tholeiites

Geomorfologija podvodnyh gor Indijskogo okeana

Global tectonics ; Indian Ocean ; Sea floor;Ocean floor ; Submarine geomorphology ; Submarine mount ; Volcanism

Submarine fan deposystems and tectonics of a Late Cretaceous forearc basin along an accretionary convergent plate boundary, MacColl Ridge Formation, Wrangell Mountains, Alaska

Submarine fan deposystems and tectonics of a Late Cretaceous forearc basin along an accretionary convergent plate boundary, MacColl Ridge Formation, Wrangell Mountains, Alaska
Alaska ; Cretaceous ; Marine sediment ; Regional geology ; Sedimentary ; Stratigraphy ; Tectonics ; Volcanic rock

Sea floor morphology of the Ebro Shelf in the region of the Columbretes Islands, Western Mediterranean

Bathymetry ; Continental shelf ; Earthquake ; Ebro ; Geology ; Mediterranean Sea ; Sea floor ; Spain ; Submarine geomorphology ; Volcanism ; West Mediterranean Sea

Les marges continentales de Guinée et de Côte-d'Ivoire orientale. Etude de géomorphologie sous-marine

Bathymetry ; Continental margin ; Glacio eustatic change ; Glacis ; Guinea ; Ivory Coast ; Palaeogeomorphology ; Sea floor ; Sea level ; Submarine erosion ; Submarine geomorphology ; Submarine volcanism

Redécouverte de l'océan mondial : explorations et cartographie des fonds océaniques

Bibliography ; Cartography;Mapping ; Continental margin ; Ecology ; Global tectonics ; Ocean ; Oceanic ridge ; Oceanology ; Plate tectonics ; Sea floor;Ocean floor ; Submarine volcanism
reliefs océaniques (volcans sous-marins et guyots, canyons, vallées et cônes sous-marins). Pour terminer l'A. évoque les programmes de forages sur le fond.

Volcanologie

Earth sciences ; Forecast;Prediction ; Geophysics ; Geothermics;Geothermal ; Global tectonics ; Handbook ; Higher education ; Lava flow ; Magma ; Modelling ; Natural hazards ; Pyroclastic ; Submarine volcanism ; Volcanic eruption ; Volcanism
sous-marin. La 3ème partie concerne l'Homme face aux volcans. « L'autopsie » de l'éruption de 1979 de la Soufrière de Saint-Vincent permet de présenter un exemple de suivi scientifique. L'analyse des éruptions récentes (Mont St Helens, El Chichon

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