Results 71 to 80 of about 1,425,422 (190)
Frontiers in Earth Science, 2018 Textural and chemical differences in coeval rhyolitic effusive and explosive eruptions are commonly observed, and numerical models predict different timescales for the eruption of crystal-rich mushes versus crystal-poor magmas. We compare quartz zonation
Susanne Seitz +6 more
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A Pyroxenic View on Magma Hybridization and Crystallization at Popocatépetl Volcano, Mexico
Frontiers in Earth Science, 2020 The Popocatépetl Volcanic Complex (PVC) is an active arc volcano located in central Mexico, 70 km southeast of Mexico City. Current models of the PVC’s plumbing system and magma petrogenesis are largely based on studies of isolated Plinian eruptions over
Martin F. Mangler +7 more
doaj +1 more source
Massive carbon storage in convergent margins initiated by subduction of limestone
Nature Communications, 2021 Experiments and buoyancy calculations reveal that subduction of limestone results in massive carbon storage in arc lithosphere, forming an important carbon reservoir in convergent margins.
Chunfei Chen +3 more
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Crustal magma storage and fractionation of Eyjafjallajökull ankaramites, South Iceland [PDF]
Jökull, 2019 Our understanding of the long-term intrusive and eruptive behaviour of volcanic systems is hampered by a relatively short period of direct observation. To probe the conditions of crustal magma storage below South Iceland, we have analysed compositions of minerals, mineral zoning patterns, and melt inclusions from two Eyjafjallajökull ankaramites ...
Paavo Nikkola +6 more
openaire +1 more source
Seismolosical studies of magma injection processes: volcano monitoring and imaging of magma chambers [PDF]
, 2001 The processes associated with magma injection at shallow depths within the crust have been the topic of many geophysical studies, some investigating the seismicity that accompanies volcanic activity and others attempting to map the subsurface extent and ...
Konstantinou, K.I. +1 more
core
VolcanicaThe eruptive style of magma is shaped by both storage conditions and ascent processes. Peralkaline melts, with relatively high water concentrations and low viscosity, are expected to better resist magmatic fragmentation compared to peraluminous melts ...
Lorenzo Cappelli +10 more
doaj +1 more source
GWAS of Second‐Generation Antihistamine Use: Locus Specificity and Highlighted Signalling Pathways
Clinical &Experimental Allergy, EarlyView.
M. Niemi +15 more
wiley +1 more source
Zr isotopes reveal long storage timescales of Archean magmas
, 2022 Abstract The storage timescales and thermal states of magma during the Archean are important factors affecting the growth and evolution of the continental crust. However, few reliable estimates exist for these parameters in ancient magmatic systems.
Zhen-Xin Li +7 more
openaire +1 more source
The incrementally zoned Miocene Ayagaures ignimbrite (Gran Canaria, Canary Islands) [PDF]
, 2010 The 20–25 m thick trachyphonolitic Ayagaures ignimbrite cooling unit [(AY); 11.8 Ma] exposed over 250 km2 (onshore volume ca. 4.5 km3 DRE) is the uppermost and most voluminous cooling unit of the Middle Fataga Formation (MFF), part of the Fataga Group ...
Hans-Ulrich Schmincke +5 more
core +1 more source
Unconventional ResourcesWith the continuous growth in global coal demand, the impact of magma intrusion on coal micro-components, pore structure, and gas storage characteristics has gradually become a significant factor influencing the economic efficiency and safety of coal ...
Minrui Cui +6 more
doaj +1 more source