Results 31 to 40 of about 616 (171)
Modeling the Intermittent Lava Lake Drops Occurring Between 2015 and 2021 at Nyiragongo Volcano
Geophysical Research Letters, 2023 Between 2015 and 2021, Nyiragongo's lava lake level experienced a linear increase punctuated by fast intermittent drops. These drops occurred synchronously to seismic swarm at approximately 15 km below the surface and extending laterally NE from the ...
D. Walwer +5 more
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Understanding Fast and Slow Unrest at Volcanoes and Implications for Eruption Forecasting
Frontiers in Earth Science, 2018 This paper examines the behavior of volcanoes that erupt quickly with paroxysmal explosive eruptions, and other volcanoes that erupt over extended periods without such paroxysmal activity.
John Stix
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Seismic imaging and petrology explain highly explosive eruptions of Merapi Volcano, Indonesia
Scientific Reports, 2018 Our seismic tomographic images characterize, for the first time, spatial and volumetric details of the subvertical magma plumbing system of Merapi Volcano. We present P- and S-wave arrival time data, which were collected in a dense seismic network, known
S. Widiyantoro +9 more
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The Interconnected Magmatic Plumbing System of the Natron Rift
Geophysical Research Letters, 2022 Understanding the magmatic plumbing system of rift volcanoes is essential when examining the interplay between magmatic and tectonic forces. Recent seismicity, volcanic activity, magma emplacement, and volatile release make the Natron basin the ideal ...
M. C. Reiss, L. DeSiena, J. D. Muirhead
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Geosciences, 2021 Constraining the pre-eruptive processes that modulate the chemical evolution of erupted magmas is a challenge. An opportunity to investigate this issue is offered by the interrogation of the crystals carried in lavas.
Teresa Trua, Michael P. Marani
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Deep into magma plumbing systems: Interrogating the crystal cargo of volcanic deposits
Geology, 2018 Volcanic units and their crystals carry a memory of hidden magma reservoirs. Here, through a statistical assessment of a worldwide compilation of volcanic bulk-rock and associated mineral data, we can quantify the proportion of crystals that appear in disequilibrium with their bulk-rock composition, over a large range of temperature conditions and ...
/Ganne, Jérôme, Bachmann, O., Feng, X.
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Estimation of Pre-eruptive Magma Ascent Using a Hydrokinetic Model of Magma Plumbing System
Recent Advances in Exploration Geophysics, 2012 We have developed a hydrokinetic model of magma plumbing system to illustrate pre-eruptive magma migration and accumulation. The pre-eruptive magma flow is not observable but computable using both a magma flow simulation and ground deformation. For this purpose, ground deformation on April 9, 2009 at the Showa crater of Sakurajima Volcano was used ...
S. Minami +4 more
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Geosystems and GeoenvironmentNeogene subvolcanic sills of tholeiitic basalt from Gabal Qatrani, Faiyum Depression, NW Desert, Egypt, represent composite intrusions of monogenetic sequences that are related to Red Sea rifting.
Ezz El Din Abdel Hakim Khalaf +1 more
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Lava dome cycles reveal rise and fall of magma column at Popocatépetl volcano
Nature Communications, 2023 Lava domes exhibit highly unpredictable and hazardous behavior, which is why imaging their morphological evolution to decipher the underlying governing mechanisms remains a major challenge. Using high-resolution satellite radar imagery enhanced with deep-
Sébastien Valade +9 more
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Segmented Moho Uplift and Implications for Magmatic Underplating Beneath the Datong Basin
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Understanding how the deep crust responds to coupled tectonic and magmatic processes is essential for deciphering intracontinental rifting. We apply high‐resolution passive‐source reverse time migration to teleseismic P‐wave receiver functions recorded by a dense seismic array to image the Moho beneath the Datong Basin. Our observations reveal
Chunlong Li +6 more
wiley +1 more source