Results 11 to 20 of about 1,569 (144)
Geochemistry, Geophysics, GeosystemsCompositions of plagioclase‐melt pairs are commonly used to constrain temperatures (T), dissolved water contents (H2O) and pressures (P) of pre‐eruptive magma storage and transport.
Jon Blundy +2 more
exaly +2 more sources
Geochemistry, Geophysics, Geosystems, 2020 Major, trace, and isotopic compositions of plagioclase megacrysts from plagioclase ultraphyric basalts (PUB) from multiple mid‐ocean ridges were determined to characterize the liquid compositions from which they were derived.
Roger Nielsen +2 more
exaly +2 more sources
CRYSTALLIZATION CONDITIONS OF PLAGIOCLASE IN VOLCANIC COMPLEXES OF SULAWESI ISLAND, PACIFIC OCEAN [PDF]
Минералогия, 2023 Mineralogical and thermobarogeochemical studies allowed us to reveal the crystallization conditions of plagioclase in volcanic complexes of Sulawesi Island (Pacific Ocean).
A.V. Kotlyarov +5 more
doaj +1 more source
Thermobar: An open-source Python3 tool for thermobarometry and hygrometry
Volcanica, 2022 We present Thermobar, a new open-source Python3 package for calculating pressures, temperatures, and melt compositions from mineral and mineral-melt equilibrium.
Penny Wieser +6 more
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Micro-Textural Controls on Magma Rheology and Vulcanian Explosion Cyclicity
Frontiers in Earth Science, 2021 Understanding the relationship between degassing, crystallization processes and eruption style is a central goal in volcanology, in particular how these processes modulate the magnitude and timing of cyclical Vulcanian explosions in intermediate magmas ...
Amelia A. Bain +9 more
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Frontiers in Nuclear Engineering, 2023 The literature for radionuclide sorption on four common granitic minerals have been surveyed. Mainly, such studies were modelling using Thermodynamic Sorption Models were investigated. Although the studies give a far from concerted results, they agree on
Stellan Holgersson, Pawan Kumar
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The Polumir granite: Addititional data on its origin [PDF]
Geološki Anali Balkanskoga Poluostrva, 2002 The Polumir granite is exposed on several localities due to erosion, and its chemical and mineral composition is presented in this paper. It is built of K-feldspar, plagioclase, myrmekite, metasomatic albite, biotite, muscovite and quartz, while apatite,
Vukov Milenko S., Milovanović Dragan
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Miarolitic cavities in rapakivi granite on Hästholmen, Loviisa, southeastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 Miarolitic cavities are described from drill cores taken from rapakivi granite on Hästholmen, an island about 80 km east of Helsinki. The distribution of cavities between different textural types of rapakivi seems to favour the equigranular medium to ...
K. Lindqvist, V. Suominen
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Journal of Economic Geology, 2022 Introduction In the northeastern part of the Isfahan province and 65 km northeast of the Anarak city (Kal-e-Kafi area), an I-type granitoid pluton cross cut the Paleozoic metamorphic rocks and Eocene volcanic rocks. In the contact of this granitoid body
Hanan Salim +2 more
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Remote Sensing, 2021 We investigate the interrelation between the hydration of the lunar regolith and the mineral composition of the surface of the Moon with respect to the concentrations of plagioclase, TiO2 (highly correlated with the oxide mineral ilmenite), and Mg-spinel.
Marcel Hess +4 more
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