Results 11 to 20 of about 18,310,087 (195)

Magma Plumbing Systems: A Geophysical Perspective [PDF]

Journal of Petrology, 2018
Over the last few decades, significant advances in using geophysical techniques to image the structure of magma plumbing systems have enabled the identification of zones of melt accumulation, crystal mush development, and magma migration. Combining advanced geophysical observations with petrological and geochemical data has arguably revolutionised our ...
Magee, C, Stevenson, CTE, Ebmeier, SK, Keir, D, Hammond, JOS, Gottsmann, JH, Whaler, KA, Schofield, N, Jackson, CA-L, Petronis, MS, O’Driscoll, B, Morgan, J, Cruden, A, Vollgger, SA, Dering, G, Micklethwaite, S, Jackson, MD   +16 more
core   +13 more sources

Crust and Uppermost Mantle Magma Plumbing System Beneath Changbaishan Intraplate Volcano, China/North Korea, Revealed by Ambient Noise Adjoint Tomography

Geophysical Research Letters, 2022
Changbaishan volcano (CBV), straddling the border between China and North Korea, is one of the most intriguing and explosive volcanoes on Earth owing to its voluminous Holocene eruptions and unusual magma composition within a continental intraplate ...
Xingli Fan, Zhen Guo, Yang Zhao, Qi‐Fu Chen   +3 more
doaj   +2 more sources

Magma mobilization by downward‐propagating decompression of the Eyjafjallajökull volcanic plumbing system [PDF]

Geophysical Research Letters, 2012
Detailed observations of the 2010 Eyjafjallajökull eruptions in Iceland show seismic activity propagating vertically through the entire crust during a ten‐week period of volcanic unrest comprising multiple eruption episodes. Systematic changes in magma chemistry suggest a complex magmatic plumbing system, tapping several accumulation zones at different
Jon Tarasewicz, Robert S. White, Andrew W. Woods, Bryndís Brandsdóttir, Magnús T. Gudmundsson   +4 more
core   +5 more sources

Persistent Multitiered Magma Plumbing Beneath Katla Volcano, Iceland

Geochemistry, Geophysics, Geosystems, 2016
Recent seismic unrest and a persistent Holocene eruption record at Katla volcano, Iceland indicate that a near-future eruption is possible. Previous petrological investigations suggest that Katla is supplied by a simple plumbing system that delivers ...
Steffi Burchardt, Börje Dahrén, Valentin R. Troll   +2 more
exaly   +2 more sources

Magma Plumbing for the 2014–2015 Holuhraun Eruption, Iceland

Geochemistry, Geophysics, Geosystems, 2016
The 2014–2015 Holuhraun eruption on Iceland was located within the Askja fissure swarm but was accompanied by caldera subsidence in the Bárðarbunga central volcano 45 km to the southwest.
Steffi Burchardt, Michael Krumbholz, Frances M Deegan   +2 more
exaly   +2 more sources

Nyamulagira’s magma plumbing system inferred from 15 years of InSAR [PDF]

Geological Society, London, Special Publications, 2013
Abstract Nyamulagira, located in the east of the Democratic Republic of Congo on the western branch of the East African rift, is Africa’s most active volcano, with an average of one eruption every 3 years since 1938. Owing to the socio-economical context of that region, the volcano lacks ground-based geodetic measurements but has
Wauthier, Christelle, Cayol, Valérie, Poland, Mickael, Kervyn, François, d'Oreye, Nicolas, Hooper, Andrew, Samsonov, Sergey, Tiampo, Kristry, Smets, Benoit   +8 more
openaire   +5 more sources

Crystal-scale records of the Gakkel Ridge magma plumbing system [PDF]

The global mid-ocean ridge system is the site of 75% of Earth’s volcanism. Whilst mid-ocean ridges have been studied for decades, ultraslow-spreading ridges, such as the Gakkel Ridge have received comparably little attention. These ultraslow-spreading ridges are important because, in addition to representing a spreading ridge end-member, they are also ...
Bennett, Emma
core   +6 more sources

Deciphering Deception Island's magma plumbing system: An interdisciplinary approach

, 2020
Deception Island (South Shetland Islands) is one of the most active volcanoes in Antarctica, with more than 20 explosive eruptive events registered over the past two centuries. Recent eruptions (1967, 1969, and 1970) and the volcanic unrest episodes that happened in 1992, 1999, and 2014-2015 demonstrate that the occurrence of future volcanic activity ...
Geyer, Adelina, Álvarez-Valero, Antonio M., Gisbert, G., Aulinas, M., Hernández-Barreña, Daniel, Lobo, Agustín, Martí Molist, Joan   +6 more
core   +4 more sources

Anatomy of the magmatic plumbing system of Los Humeros Caldera (Mexico): implications for geothermal systems [PDF]

Solid Earth, 2020
Understanding the anatomy of magma plumbing systems of active volcanoes is essential not only for unraveling magma dynamics and eruptive behaviors but also to define the geometry, depth, and temperature of the heat sources for geothermal exploration. The
F. Lucci, G. Carrasco-Núñez, F. Rossetti, T. Theye, J. C. White, S. Urbani, H. Azizi, Y. Asahara, G. Giordano, G. Giordano   +9 more
doaj   +1 more source

Two Distinct Magma Storage Regions at Ambrym Volcano Detected by Satellite Geodesy

Geophysical Research Letters, 2023
The flux of eruptible magma into a magmatic plumbing system influences eruption size and timing. If magma transfer is possible between two hydraulically‐connected magma lenses, system destabilization can tap a larger magma volume than stored in any one ...
T. Shreve, Y. Zhan, H. Le Mével, D. Roman, Y. Moussallam   +4 more
doaj   +1 more source