Results 11 to 20 of about 9,742 (201)

Megathrust Shear Modulated by Albite Metasomatism in Subduction Mélanges [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Aseismic megathrust slip downdip of the seismogenic zone is accommodated by either steady creep or episodic slow slip events (SSEs). However, the geological conditions defining the rheology of megathrust slip remain elusive.
Kohtaro Ujiie   +8 more
doaj   +2 more sources

Structural Response of Laser‐Driven Shock Compressed Albite

open access: yesGeophysical Research Letters
Plagioclase records characteristic shock features that constrain meteorite impact conditions, but its phase evolution along the Hugoniot remains unresolved.
Sota Takagi   +15 more
doaj   +2 more sources

Effects of water and fluorine on the viscosity of albite melt at high pressure: a preliminary investigation [PDF]

open access: yes, 1985
The viscosities of fluorine- and water-bearing melts based on albite composition have been determined at 7.5, 15 and 22.5 kbar by the falling-sphere method. All melt viscosities decrease isothermally with increasing pressure.
Mysen, Bjørn O., Dingwell, Donald B.
core   +1 more source

Experimental determination of plagioclase dissolution rates as a function of its composition and pH at 22°C. [PDF]

open access: yes, 2014
The steady-state, far-from-equilibrium dissolution rates of nine distinct plagioclases ranging in composition from An2 to An89 were measured in mixed flow reactors at 22 ± 2 C and pH from 2 to 11.
Gudbrandsson S., Wolff-Boenisch D., Gislason S. R. and Oelkers E. H.
core   +1 more source

Hydrogen in Nominally Anhydrous Crustal Minerals [PDF]

open access: yes, 2003
Systematic infrared and nuclear magnetic resonance investigations of common crustal minerals were undertaken to better understand the geologic significance of minor components of structural hydrous species within these nominally anhydrous minerals ...
Johnson, Elizabeth Ann
core   +1 more source

Computational and theoretical insights into the homeostatic response to the decreased cell size of midbrain dopamine neurons

open access: yesPhysiological Reports, 2021
Midbrain dopamine neurons communicate signals of reward anticipation and attribution of salience. This capacity is distorted in heroin or cocaine abuse or in conditions such as human mania.
Francisco Arencibia‐Albite   +1 more
doaj   +1 more source

Water solubility in aluminosilicate melts of haplogranite composition at 2 kbar [PDF]

open access: yes, 1992
The compositional dependence of H2O solubility was investigated at 2 kbar and 800°C in haplogranite melts (system SiO2---1bNaAlSi3O8---1bKAlSi3O8 or Qz---1bAb---1bOr).
Taylor, Richard P.   +3 more
core   +1 more source

Transformation of Ordered Albite into Kaolinite: Implication for the Booklet Morphology

open access: yes, 2022
Kaolinization of feldspars is widespread in various geological environments including weathering and hydrothermal environments. However, the mechanisms of such mineral transformation and kaolinite formation remain obscure.
Yilin He   +19 more
core   +2 more sources

A role for subducted albite in the water cycle and alkalinity of subduction fluids

open access: yesNature Communications, 2021
Albite is one of the major constituents in the Earth’s crust. Here, the authors report that under hydrous cold subduction conditions, albite undergoes breakdown into hydrated smectite and other phases, which release alkaline fluids into the mantle wedge.
Gil Chan Hwang   +8 more
doaj   +1 more source

Study on Remediation of Hexachlorobenzene Contaminated Soil by Mechanochemical Method [PDF]

open access: yesE3S Web of Conferences, 2021
The mechanochemical method is a potential way to destroy pollutants such as heavy metals and organic compounds due to its advantages such as complete reaction, adaptation of various pollutants and low energy consumption, etc.
Xue Li, Huichao Chen, Xiao Liang
doaj   +1 more source

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