Experimental constraints on amphibole stability in primitive alkaline and calc-alkaline magmas [PDF]
Equilibrium crystallization experiments were carried out on two primitive basaltic rocks (APR16: Na2O+K2O=4.40 wt%; CM42: Na2O+K2O=2.59 wt%) with the aim to investigate the amphibole stability in the differentiation processes at deep crustal level, of
Bonechi, Barbara +4 more
core +1 more source
A boulder of Ouachitite from Inderskär, Åland Islands, Finland [PDF]
The ouachitite is composed of phenocrysts of olivine, diopside, phlogopite, set in a fine-grained matrix with phlogopite, clinopyroxene, ore and calcite. Analyses of the rock and of several minerals are given. It is concluded that the boulder most likely
P. Kresten, N. Edelman
doaj +1 more source
Cement-rock interaction : infiltration of a high-pH solution into a fractured granite core [PDF]
Within the framework of the HPF project (Hyperalkaline Plume in Fractured Rock) at the Grimsel Test Site (Switzerland), a small scale core infiltration experiment was performed at the University of Bern.
Mäder, Urs K., Soler, Josep M.
core +5 more sources
Geology and Geochemistry of the Early Proterozoic Kortejärvi and Laivajoki Carbonatites, Central Fennoscandian Shield, Finland [PDF]
This paper provides for the first time extensive petrological, mineralogical and geochemical data on the early Proterozoic Kortejärvi and Laivajoki carbonatites, northern Finland, which form metamorphosed and highly strained bodies 2 and 4 km long within
J. Nykänen, K. Laajoki, J. Karhu
doaj +1 more source
Mineral chemistry of late Variscan gabbros from central Spain: constraints on crystallisation processes and nature of the parental magmas [PDF]
© 2016. Universidad Complutense de Madrid. The commercial rights of the printed and online versions of Journal of Iberian Geology are property of the Universidad Complutense de Madrid (UCM) and the Consejo Superior de Investigaciones CientÍficas (CSIC),
Jeffries, T +3 more
core +3 more sources
Syntheses of trioctahedral micas in the compositional join phlogopite-sodium phlogopite.
The mica minerals were synthesized in the compositional join phlogopite(Ph)-sodium phlogopite at 1 kbar water pressure and 550°C by using starting oxide mixtures. The resulting phases were phlogopite, phlogopite solid solutions and saponite-like hydrate. Phlogopite was obtained from a Ph100 composition.
Toshihiko MATSUDA, Kitinosuke HENMI
openaire +2 more sources
Conversion of Fluor-Phlogopite to Hydroxy-Phlogopite in NaOH and LiOH Hydrothermal Solutions
Exchange of fluorine for hydroxide ions in synthetic fluor-phlogopite (KMg3AlSi3O10F2) was studied in hydrothermal solutions of various concentrations of NaOH and LiOH. The pressure applied was fixed at 100MPa, temperatures were 300°, 450° and 600°C, and the experimental duration was 7 days.
Taketoshi FUJITA +2 more
openaire +2 more sources
ZONATION OF PHLOGOPITE OF CARBONATITE-PEGMATITES OF THE BULDYM DEPOSIT OF THE VISHNEVYE MOUNTAINS (SOUTH URALS) [PDF]
In a plate 19 cm in size from the columnar crystal of phlogopite Buldym deposit in the Southern Urals, we studied the composition of alternating greenish-brown, yellowish-brown and darker brown areas by electron-probe microanalysis.
V.I. Popova +3 more
doaj
In this study, we investigate phlogopite-rich pyroxenite from a major terrain boundary, i.e., the interface of Nallamalai Fold Belt and Nellore schist belt, in southern India.
Tushar Meshram +5 more
doaj +1 more source
The lithospheric mantle and lower crust-mantle relationships under Scotland: a xenolithic perspective [PDF]
In the British Isles the majority of volcanic rocks containing upper mantle and lower crustal xenoliths occur in Scotland. Most of the occurrences are of Carboniferous–Permian age.
Arai +17 more
core +1 more source

