Results 31 to 40 of about 105,255 (290)
Geophysical Research Letters, 1984 Motivated to understand the process of melt migration in the earth’s mantle, we have studied a generalised form of Darcy’s law that describes porous flow in a matrix that can deform by creep. We find a remarkable richness of phenomena, including a new class of solitons.
Scott, David R., Stevenson, David J.
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Geophysical Research Letters, 2023 To illuminate brittle and ductile fracturing of magma, we investigated bubble expansion and fracturing in two contrasting fluids: a Maxwell‐type viscoelastic fluid and a Bingham‐type yield‐strength fluid.
Claudia Sánchez +2 more
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Halogen Enrichment of Siberian Traps Magmas During Interaction With Evaporites
Frontiers in Earth Science, 2021 Volatile emissions to the atmosphere associated with the Siberian Traps eruptions at the Permian-Triassic boundary were sourced from the outgassing of primary magmas and the sedimentary host rocks into which they were intruded. Halogens in volcanic gases
Svetlana Sibik +6 more
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Journal of Economic Geology, 2012 The study area is located south of Ghonabad in Eastern Iran. This area is situated between two major faults, Darouneh to the north and Dashtbyaz to the south. The movements of these faults cased major dislocation of this block.
Mehrab Moradi Noghondar +3 more
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Shear Velocity Evidence of Upper Crustal Magma Storage Beneath Valles Caldera
Geophysical Research Letters, 2023 Valles Caldera was formed by large rhyolitic eruptions at ∼1.6 and 1.23 Ma and it hosts post‐caldera rhyolitic deposits as young as ∼69 ka, but the contemporary state of the magmatic system is unclear.
Justin Wilgus +4 more
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Magma reservoir failure and the onset of caldera collapse at Kīlauea Volcano in 2018
Science, 2019 Caldera collapse and flank eruption Real-time monitoring of volcanic eruptions involving caldera-forming events are rare (see the Perspective by Sigmundsson). Anderson et al.
K. Anderson +7 more
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Open Geosciences, 2018 Java Island is part of the island arc influenced by subducting Indo-Australian beneath Eurasian tectonic plates, therefore there is high seismic activity and an active volcanic chain trending East-West. One of the volcanoes in Java Island is Mt.
Santoso D. +6 more
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Frontiers in Earth Science, 2019 Minor seismicity may occur at volcanoes with hydrothermal system before a steam eruption. To forecast any steam eruption, it is indispensable to detect and understand the nature of this shallow seismicity. As the fumarolic gas resides in the hydrothermal
Takeshi Ohba +6 more
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Depth of Magma Storage Under Iceland Controlled by Magma Fluxes
Geochemistry, Geophysics, Geosystems, 2023 AbstractThe compositions of volcanic materials are sensitive to physical conditions in the underlying magmatic system. When basaltic melts are saturated in olivine‐plagioclase‐augite prior to eruption, their compositions can be used to estimate the pressure at which they last equilibrated.
Baxter, RJM +3 more
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