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Full glossary

Aggiornato: 28 apr. 2024 08:39 GMT -

VAAC (Volcanology: Vulcanica Ash Advisory Centre)

Volcanic Ash Advisory Center (VAAC) sono centri di ricerca che controllano le nubi di cenere vulcanica in tempo reale. Ogni volta, un vulcano erutta una nube di cenere significativi, brevi relazioni sono emessi e trasmessa direttamente ai centri di controllo dell'aria. Il VAAC 9 si trovano a Londra, Tolosa, Tokyo, Darwin, Anchorage, Washington, Montreal e Buenos Aireas e collettivamente coprono la maggior parte del globo.

valanga di detriti (Volcanology)

Un crollo improvviso di materiale vulcanico, da un lato instabile di un vulcano. Valanghe di detriti sono un tipo particolarmente violento di flussi piroclastici (nella sua accezione più ampia).

Valle del Bove (Place)

Valles Caldera (Volcano)

The 22-km-wide Valles caldera was formed by 2 very large explosive eruptions 1.7 and 1.2 million years ago. Post caldera eruptions formed Redondo Peak dome inside the caldera.
The last eruptions of the caldera happened 50,000-60,000 years ago, depositing rhyolite ignimbrite deposits.
The caldera is still considered potentially active and has an active geothermal system with hot springs and fumaroles.

Vathy (Mineralien)

Il porto di pesca Vathy su Methana

Vatnafjöll (Volcano)

The Vatnafjöll volcanic system, lying immediately SE of Hekla volcano, is a 40-km-long, 9-km-wide collection of alkali basaltic fissures and crater rows.

Veniaminof (Volcano)

Veniaminof is one of the highest, largest and most active volcanoes on the Alaska Peninsula.

Vestmannaeyjar (Heimaey + Surtsey) (Volcano)

Vestmannaeyjar is a mostly submarine volcanic system just off Iceland's south coast, famous for the appearance of Surtsey Island in 1963-67 and the destructive eruption on Heimaey Island in 1973.

Vesuvio (Volcano)

viscosità (Volcanology)

La capacità di un liquido di flusso. Magma basaltico ha una viscosità relativamente bassa, rendendolo che cola, considerando che il magma riolite ha un'elevata viscosità rendendo il magma denso e appiccicoso.

Volcan Fajã de Cima (Volcano)

Nearly 200 scoria cones dot the "waist" of Sao Miguel Island between Sete Cidades and Agua de Pau volcanoes.

Vulcano (Volcano)

vulcano a scudo (Volcanology)

Vulcani a scudo sono vulcani che eruttano principalmente fluido flussi di lava (solitamente basaltica) che sono in grado di viaggiare sulle lunghe distanze e quindi costruire su piste larghe, dolce tempo. Essi sono chiamati vulcani a scudo, perché assomigliano a forma di scudo un warriors'.

Vulcano Brennisteinsfjöll (Volcano)

Vulcano di fango (Volcanology)

Vulcani di fango non sono nessun veri vulcani, ma bocche che eruttano il fango, come sediemtn bene è spremuto verso l'alto da prezzurized acqua, vapore e gas scappando dai depositi più profondi.

Vulcano Dukono (Volcano)

Vulcano Gamkonora (Volcano)

Vulcano Geureudong (Volcano)

Vulcano Grímsvötn (Volcano)

Vulcano Katla (Volcano)

Vulcano Kerlingarfjöll (Volcano)

Vulcano Ljósufjöll (Volcano)

Vulcano Lokon-Empung (Volcano)

Vulcano Mahawu (Volcano)

Vulcano Makian (Volcano)

Vulcano Marapi (Volcano)

Vulcano Öraefajökull (Volcano)

Vulcano Pavlov (Alaska) (Volcano)

Vulcano Prestahnukur (Volcano)

Vulcano Rincón de la Vieja (Volcano)

Vulcano Shiveluch (Sheveluch) (Volcano)

Vulcano Snaefellsjökull (Volcano)

Vulcano Sorikmarapi (Volcano)

Vulcano Tandikat (Volcano)

Vulcano Theistareykjarbunga (Volcano)

Vulcano Toba (Volcano)

Vulcano Torfajökull (Volcano)

Vulcano Tungnafellsjökull (Volcano)

Vulcanologia (Volcanology)

La scienza di studiare i vulcani.

Vulsini (Volcano)

The Vulsini volcanic complex in central Italy covers about 2200 sq km at the northern end of the Roman magmatic province.
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