Results 41 to 50 of about 3,224 (207)

Phreatomagmatic deposits and stratigraphic reconstruction at Debunscha Maar (Mt Cameroon volcano) [PDF]

, 2010
The Debunscha Maar (DM) is located on the southwest flank of Mount Cameroon, an active stratovolcano on the Cameroon volcanic line (CVL). Here, we present the physical characteristics of the pyroclastic deposits at DM with the aim of deciphering tephra ...
Devey, Colin W., Ngwa, Caroline, Suh, C. E.   +2 more
core   +1 more source

The 1723 AD violent Strombolian and phreatomagatic eruption at Irazu volcano (Costa Rica) [PDF]

, 2013
The largest of the recorded historic eruptions at Irazú volcano began on February 16, 1723 and lasted until at least December 11. We here critically examine deposits of this eruption exposed on the summit of Irazú. Our reconstruction of the eruption is
Alvarado, G. E., Schmincke, Hans-Ulrich
core  

Lunar Crater Volcanic Field (Reveille and Pancake Ranges, Basin and Range Province [PDF]

, 2017
The Lunar Crater volcanic field (LCVF) in central Nevada (USA) is domi­nated by monogenetic mafic volcanoes spanning the late Miocene to Pleisto­cene.
Andrew G. Harp, Aranda-Gómez, Ballmer, Bergman, Bolós, Brent Turrin, Christine Rasoazanamparany, Cimarelli, Cousens, Ekren, Elisabeth Widom, Eugene I. Smith, Friese, Gazel, Germa, Geshi, Greg A. Valentine, Hintz, Jason P. Briner, Joaquín A. Cortés, Johnson, Kempton, Le Corvec, Levander, McGee, Menand, Menzies, Muirhead, Racheal Johnsen, Re, Re, Reynolds, Schulte-Pelkum, Valentine, Winograd   +34 more
core   +1 more source

Transition from magmatic to phreatomagmatic eruptions in Young Ciremai volcano, Indonesia: insights from stratigraphy, componentry, and textural analysis of tephra deposits

Earth, Planets and Space
Vulcanian eruptions, characterized by intermediate magma compositions, pose significant hazards due to their potential for both magmatic and phreatomagmatic fragmentation.
Wildan N. Hamzah, Tsukasa Ohba, Muhammad Andriansyah Gurusinga, Mradipta L. A. Moktikanana, Jananda N. Indriyanto, Takashi Hoshide, Mirzam Abdurrahman, Idham A. Kurniawan, Fadlin   +8 more
doaj   +1 more source

SO2 and tephra emissions during the December 22, 2018 Anak Krakatau eruption

Volcanica, 2019
On December 22, 2018 the south-western flank of Anak Krakatau collapsed into the sea, removing 93.8 × 106 m3 of subaerial lavas, and generated a tsunami.
Mathieu Gouhier, Raphaël Paris
doaj   +1 more source

Complex bombs of phreatomagmatic eruptions: Role of agglomeration and welding in vents of the 1886 Rotomahana eruption, Tarawera, New Zealand [PDF]

Journal of Geophysical Research: Solid Earth, 2006
Basaltic bombs ejected from a Rotomahana crater during the 1886 Tarawera eruption in New Zealand are of two fundamental types: cored bombs, which have single large fragments, generally of rhyolite wall rock material, as their cores, and “loaded” bombs, which contain abundant small fragments dispersed through the bombs.
Jean‐Baptiste Rosseel, J. D. L. White, B. F. Houghton   +2 more
openaire   +1 more source

Construction of probabilistic event trees for eruption forecasting at Sinabung volcano, Indonesia 2013-14 [PDF]

, 2019
Eruptions of Sinabung volcano, Indonesia have been ongoing since 2013. Since that time, the character of eruptions has changed, from phreatic to phreatomagmatic to magmatic explosive eruptions, and from production of a lava dome that collapsed to a ...
2013 VDAP team, Agus Budianto, CVGHM event tree team, Heather M. N. Wright, Hendra Gunawan, John S. Pallister, Julia P. Griswold, Maurizio Battaglia, Sofyan Primulyana, Supriyati Andreastuti, Wendy A. McCausland   +10 more
core   +1 more source

Two Small Volcanoes, One Inside the Other: Geophysical and Drilling Investigation of Bažina Maar in Western Eger Rift

Earth and Space Science, 2023
Maar‐diatreme volcanoes are small volcanic structures with a funnel‐shaped crater surrounded by a tephra‐ring. They are usually formed by the explosive phreatomagmatic eruptions when groundwater comes into the contact with magma.
Pavla Hrubcová, Tomáš Fischer, Vladislav Rapprich, Jan Valenta, Petr Tábořík, Jan Mrlina, Torsten Dahm, Tomáš Vylita, Roman Beránek, Radek Klanica, Josef Vlček, Veronika Turjaková   +11 more
doaj   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Initiation of the Ferrar Large Igneous Province Started in Southern North Victoria Land, Antarctica, With Shallow Emplacement of Sills Causing Magma‐Soft‐Rock Interaction and Phreatomagmatic Eruptions

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Early Jurassic volcanism was in the southern north Victoria Land portion of the Ferrar Large Igneous Province preceded by multiple phases of shallow‐level intrusions of Ferrar sills into the 300 m thick cover of sedimentary rocks of the Triassic‐Jurassic Victoria Group.
Lothar G. Viereck, Jörg Büchner, Robert Schöner, Jörg W. Schneider, Benjamin Bomfleur, Jan Tympel, Ricarda Hanemann, Axel Gerdes   +7 more
wiley   +1 more source