Results 71 to 80 of about 23,785 (261)
Earth, Planets and Space, 2018 Petrological observations and chemical analyses of melt inclusions in scoria were used to investigate the magma ascent and eruption processes of the 1979, 1989, and 2014 eruptions of Nakadake, Aso volcano, Japan. Major elements and sulfur contents of the
Genji Saito +4 more
doaj +1 more source
The Boycott effect in magma chambers [PDF]
Geophysical Research Letters, 2004 We investigate the plausibility of the stratified Boycott effect as a source of layering in magma chambers. Crystal settling within the magma chamber will generate buoyant fluid near the sloping sidewalls whose vertical ascent may be limited by the ambient stratification associated with vertical gradients in SiO2.
F. Blanchette, T. Peacock, J. W. M. Bush
openaire +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.Abstract The Changbaishan volcanic field, which includes the Tianchi and Wangtian'e volcanoes in China and the Namphothe volcano in North Korea, is one of the most complex and hazardous volcanic regions on Earth due to its tectonic setting and explosive Holocene activity.
Xiaomeng Niu +9 more
wiley +1 more source
Shallow Magmatic System of Arxan Volcano Revealed by Ambient Noise Tomography with Dense Array
Applied SciencesThe Arxan Volcanic Field (AVF) is an active volcanic region in Northeast Asia, and its last eruption occurred approximately 2000 years ago. Its eruption mechanism remains unknown.
Lijuan Qu, You Tian, Cai Liu, Hongli Li
doaj +1 more source
Plagioclase as evidence of magmatic evolution in the Zafarqand porphyry copper deposit, NE Isfahan
Journal of Economic Geology, 2018 Introduction Chemical and textural zoning patterns preserved in plagioclase phenocrysts can provide useful information on parameters that constrains the changing melt compositions in the magma systems.
Maryam Aminoroayaei Yamini +3 more
doaj +1 more source
Petrography and petrology of the Hawaii Scientific Drilling Project lavas: Inferences from olivine phenocryst abundances and compositions [PDF]
, 1996 The Mauna Loa (ML) and Mauna Kea (MK) lavas recovered by the Hawaii Scientific Drilling Project (HSDP) include aphyric to highly olivine-phyric basalts.
Alves, Sophie +2 more
core +1 more source
Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both +2 more
wiley +1 more source
Computational and Experimental Research in Materials and Renewable Energy, 2020 Mogi Model with particle swarm optimization (PSO) scheme have been applied to the local GPS data of Sinabung Volcano during 2011 to 2012 to receive subsurface parameters as pressure sources in terms of misfit and inversion model parameter.
Ratih Kumalasari +3 more
doaj +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
Timescale of open-reservoir evolution beneath the south Cleft segment, Juan de Fuca ridge [PDF]
, 2011 International audienceLavas erupted at the southern end of the intermediate Juan de Fuca ridge (Cleft segment) are mostly cogenetic and their chemical diversity results from melt evolution in an open magma system.
Caroff, Martial +2 more
core +3 more sources