Results 91 to 100 of about 12,964 (202)

Volcanological constraints of Archaean tectonics [PDF]

Volcanological and trace element geochemical data can be integrated to place some constraints upon the size, character and evolutionary history of Archean volcanic plumbing, and hence indirectly, Archean tectonics.
Ayres, L. D., Thurston, P. C.
core   +1 more source

Numerical simulation of lava flows based on depth-averaged equations

, 2005
Risks and damages associated with lava flows propagation (for instance the most recent Etna eruptions) require a quantitative description of this phenomenon and a reliable forecasting of lava flow paths.
Costa, Antonio, Macedonio, Giovanni
core   +3 more sources

Origin of the Ionospheric Changes Immediately Before the 15 January 2022 Eruption of the Hunga-Tonga Hunga-Ha’apai Submarine Volcano

Atmosphere
Near-field ionospheric total electron content records before and after the 15 January 2022 eruption of the Hunga-Tonga Hunga-Ha’apai submarine volcano were studied using GNSS total electron content data.
Kosuke Heki
doaj   +1 more source

The 1998 eruption of Axial Seamount: New insights on submarine lava flow emplacement from high‐resolution mapping

Geochemistry, Geophysics, Geosystems, 2013
Axial Seamount, an active submarine volcano on the Juan de Fuca Ridge at 46°N, 130°W, erupted in January 1998 along 11 km of its upper south rift zone.
W. W. Chadwick Jr., D. A. Clague, R. W. Embley, M. R. Perfit, D. A. Butterfield, D. W. Caress, J. B. Paduan, J. F. Martin, P. Sasnett, S. G. Merle, A. M. Bobbitt   +10 more
doaj   +1 more source

A study of dynamics of magma extrusion and investigation of volcanic vapor Final report, 25 Mar. 1966 - 30 Jun. 1967 [PDF]

Modified heat flow model for magma extrusion and volcanic ...
Allen, R. V., Mc Claine, L. A., Mc Connell, R. K., Jr.   +2 more
core   +1 more source

The seafloor record of explosive submarine volcanic eruptions

Abstract Underwater density currents triggered by marine volcanic eruptions threaten island communities and infrastructure, while their deposits provide potential archives of past major eruptions. Despite their significance, a scarcity of real-time observations and sampling of resultant deposits limits our understanding of the behaviour of such
Jacob Nash, Isobel Yeo, Michael Clare, James Hunt, Andrew Cundy, Sally Watson, Richard Wysoczanski, Sarah Seabrook, Kevin Mackay, Shane Cronin, Joali Paredes-Mariño, Taaniela Kula, Rennie Vaiomounga, Cían McGuire, Miros Charidemou   +14 more
openaire   +1 more source

Monitoring El Hierro submarine volcanic eruption events with a submarine seismic array

, 2013
A submarine volcanic eruption took place near the southernmost emerged land of the El Hierro Island (Canary Islands, Spain), from October 2011 to February 2012. The Instituto Geografico Nacional (IGN) seismic stations network evidenced seismic unrest since July 2012 and was a reference also to follow the evolution of the seismic activity associated ...
Jurado, Maria José, Molino, Erik, López, Carmen   +2 more
openaire   +1 more source

Physical Modeling of Tsunamis Generated by Submarine Volcanic Eruptions

Journal of Geophysical Research: Oceans
AbstractSubmarine volcanic eruptions can induce major local and regional tsunami hazards through varied source mechanisms. Large‐scale experiments of tsunamis generated by submarine volcanic eruptions are conducted to study the cylindrical wave generation and propagation in a three‐dimensional wave basin.
Yibin Liu, Hermann M. Fritz
openaire   +1 more source

Volcanic Eruption Patterns Along Submarine Rift Zones [PDF]

Proceedings OCEANS '83, 1983
R. Holcomb, D. Clague
openaire   +1 more source

Ongoing Activity at Hunga Submarine Volcano, Tonga: The Case for Better Monitoring of Submarine Volcanoes Worldwide

Geochemistry, Geophysics, Geosystems
The powerful eruption of Hunga volcano (15‐January‐2022) excavated ∼6.3 km3 of pre‐existing material, leaving behind an 855 m deep crater. The scientific and humanitarian response to this event was challenging due to the remote location, safety concerns,
Sharon L. Walker, Cornel E. J. deRonde
doaj   +1 more source