Results 11 to 20 of about 10,912 (200)

Low-degree mantle melting controls the deep seismicity and explosive volcanism of the Gakkel Ridge

open access: yesNature Communications, 2022
Joint implementation of seismic tomography and numerical thermo-mechanical modeling sheds light to the causes of explosive submarine volcanic eruptions on the Gakkel Ridge and deeply penetrating seismicity down to 25 km depth.
Ivan Koulakov   +5 more
doaj   +1 more source

From basalt to biosphere: Early non-vent community succession on the erupting Vailulu’u deep seamount

open access: yesFrontiers in Marine Science, 2023
Volcanic eruptions provide rare opportunities to witness the biological recolonization of areas covered by new lava flows by effectively resetting the ecological succession clock to zero. The role of submarine volcanic eruptions as disturbance events and
Santiago Herrera   +7 more
doaj   +1 more source

Simulated distributions of pumice rafts in Japan following eruptions at volcanic islands and submarine volcanoes

open access: yesProgress in Earth and Planetary Science, 2023
Voluminous pumice rafts produced by the 2021 phreatomagmatic eruption of Fukutoku-Oka-no-Ba, a submarine volcano located in the Izu-Bonin Islands, reached many Japanese ports and islands, damaging fisheries and hindering marine traffic and trade.
Haruka Nishikawa   +3 more
doaj   +1 more source

Unraveling Past Submarine Eruptions by Dating Lapilli Tuff-Encrusting Coralligenous (Actea Volcano, NW Sicilian Channel)

open access: yesFrontiers in Earth Science, 2021
The dating of young submarine volcanic eruptions, with their potential generation of tsunamigenic waves, is essential for a reliable hazard assessment. This is particularly relevant in highly populated coastal areas.
Emanuele Lodolo   +8 more
doaj   +1 more source

Discovery of the Largest Historic Silicic Submarine Eruption [PDF]

open access: yesEos, Transactions American Geophysical Union, 2014
It was likely twice the size of the renowned Mount St. Helens eruption of 1980 and perhaps more than 10 times bigger than the more recent 2010 Eyjafjallajökull eruption in Iceland. However, unlike those two events, which dominated world news headlines, in 2012 the daylong submarine silicic eruption at Havre volcano in the Kermadec Arc, New Zealand ...
Carey, Rebecca J.   +3 more
openaire   +3 more sources

Explosive Submarine Eruptions: The Role of Condensable Gas Jets in Underwater Eruptions

open access: yesJournal of Geophysical Research: Solid Earth, 2021
AbstractIn explosive submarine eruptions, volcanic jets transport fragmented tephra and exsolved gases from the conduit into the water column. Upon eruption the volcanic jet mixes with seawater and rapidly cools. This mixing and associated heat transfer ultimately determines whether steam present in the jet will completely condense or rise to breach ...
R. C. Cahalan, J. Dufek
openaire   +2 more sources

Degassing history of water, sulfur, and carbon in submarine lavas from Kilauea volcano, Hawaii [PDF]

open access: yes, 1991
Major, minor, and dissolved volatile element concentrations were measured in tholeiitic glasses from the submarine portion (Puna Ridge) of the east rift zone of Kilauea Volcano, Hawaii.
Clague, David A.   +2 more
core   +1 more source

Numerical modelling of mud volcanoes and their flows using constraints from the Gulf of Cadiz [PDF]

open access: yes, 2003
It is estimated that the total number of submarine mud volcanoes is between 1000 and 100 000. Because many are associated with greenhouse gases, such as methane, it is argued that the global flux of these gases to the atmosphere from the world’s ...
Blankenship   +14 more
core   +2 more sources

Sea-floor tectonics and submarine hydrothermal systems [PDF]

open access: yes, 2005
The discovery of metal-depositing hot springs on the sea floor, and especially their link to chemosynthetic life, was among the most compelling and significant scientific advances of the twentieth century. More than 300 sites of hydrothermal activity and
de Ronde, Cornell D. J.   +2 more
core   +1 more source

Glass in the submarine section of the HSDP2 drill core, Hilo, Hawaii [PDF]

open access: yes, 2004
The Hawaii Scientific Drilling Project recovered ~3 km of basalt by coring into the flank of Mauna Kea volcano at Hilo, Hawaii. Rocks recovered from deeper than ~1 km were deposited below sea level and contain considerable fresh glass. We report electron
Baker, Michael   +4 more
core   +1 more source

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