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Relating formulations of the thermodynamics of mineral solid solutions: Activity modeling of pyroxenes, amphiboles, and micas
mineral solid solutions pyroxenes amphiboles andmicas
2012/3/30
Inathermodynamicdescriptionofamineralsolidsolution,itiscustomarytoselecta
minimalgroupofend-membersthatconstitutesanindependentset,andyetinpractical
calculationsitcommonlyoccursthatadifferentindepen...
Structural mechanisms of solid solution and cation ordering in augite-jadeite pyroxenes: II. A microscopic perspective
Structural mechanisms augite-jadeite pyroxenes microscopic perspective
2012/3/31
Infrared spectra of ordered (P2/n ) and disordered ( C2/c ) pyroxenes belonging to the join augite-jadeite were investigated at room temperature in the range 70–1400 cm 21. The spectra change as a fun...
Structural mechanisms of solid solution and cation ordering in augite-jadeite pyroxenes: I. A macroscopic perspective
Structural mechanisms augite-jadeite pyroxenes macroscopic perspective
2012/3/31
Single-crystal and powder X-ray diffraction data were collected to characterize the mac-roscopic solid-solution and cation-ordering behavior in the system augite-jadeite (low ac-mite content). We exam...
TRENDS AND AFFINITIES OF BASALTIC MAGMAS AND PYROXENES AS ILLUSTRATED ON THE DIOPSIDE-OLIVINE-SILICA DIAGRAM
TRENDS AFFINITIES OF BASALTIC MAGMAS PYROXENES AS ILLUSTRATED ON THE DIOPSIDE-OLIVINE-SILICA DIAGRAM
2014/4/8
The major normative components of basalts can be accommodated in the tetrahedra plagioclase-diopside-olivine-silica or plagioclase-diopside-olivine-nepheline. Average compositions of magma batches fro...