Results 121 to 130 of about 690 (184)

A new activity model for biotite and its application. [PDF]

Contrib Mineral Petrol
Dachs E, Benisek A.
europepmc   +1 more source

Trace element systematics constrain the origin of fluids that form gem-quality diamonds. [PDF]

Commun Earth Environ
Rakipov A, Woodland AB, Nestola F, Galiè M, Pamato MG, Novella D, Day MC, Erhardt T, Müller W.   +8 more
europepmc   +1 more source

Incipient carbonate melting drives metal and sulfur mobilization in the mantle. [PDF]

Sci Adv
Ezad IS, Saunders M, Shcheka SS, Fiorentini ML, Gorojovsky LR, Förster MW, Foley SF.   +6 more
europepmc   +1 more source

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Microwave Exfoliation of Vermiculite and Phlogopite

Clays and Clay Minerals, 2003
AbstractVermiculites and phlogopites can be exfoliated by chemical and thermal treatment methods to obtain chemically inert, adsorbent, fire-resistant, low-density materials with excellent thermal and acoustic insulation properties. The water content of the clay generally determines the extent of exfoliation and the presence of interstratification is ...
Yorukoglu, ABDULKERİM, Girgin, I, OBUT, ABDULLAH   +2 more
openaire   +2 more sources

Weathering of phlogopite to beidellite in a karstic environment

American Journal of Science, 2009
The extent of natural weathering of phlogopite crystals in a karstic environment and the composition of its weathering products have been examined through a multi-method investigation carried out on a volcanoclastic deposit discov- ered in the Grotta del Cervo cave, Pietrasecca, central Italy.
ALDEGA, LUCA, J. Cuadros, A. Laurora, A. Rossi   +3 more
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The electret state of phlogopite

Russian Physics Journal, 1993
An electret state of phlogopite is discovered. An investigation of the currents of thermostimulated depolarization and the currents of thermodepolarization shows that proton relaxation plays a part in its formation.
V. M. Timokhin, M. P. Tonkonogov, A. I. Pashkevich   +2 more
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Rare gases in a phlogopite nodule and a phlogopite-bearing peridotite in South African kimberlites

Earth and Planetary Science Letters, 1977
Rare gas isotopes in a phlogopite nodule and a phlogopite-bearing peridotite nodule in South African kimberlites were studied to examine the state of rare gases in the deep interior of the kimberlite region. Within the experimental error of 1 ∼ 2%, rare gas isotopic compositions are atmospheric except for radiogenic4He and40Ar.
Ichiro Kaneoka, Nobuo Takaoka, Ken-Ichiro Aoki   +2 more
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Phlogopite and phlogopite–amphibole parageneses in the lithospheric mantle of the Birekte terrane (Siberian craton)

Doklady Earth Sciences, 2017
Mantle xenoliths containing phlogopite and phlogopite–amphibole mineralization from kimberlites of the Kuoika field have been studied. Such xenoliths were found in two series of rocks: magnesian (Mg) pyroxenite–peridotite and Fe-type phlogopite–ilmenite hyperbasite.
L. V. Solov’eva, T. V. Kalashnikova, S. I. Kostrovitsky, A. V. Ivanov, S. S. Matsuk, L. F. Suvorova   +5 more
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Stability of phlogopite at high pressures and possible presence of phlogopite in the earth's upper mantle

Earth and Planetary Science Letters, 1967
Abstract High-pressure experiments have been made on the stability of natural and synthetic phlogopites by the tetrahedral-anvil type high-pressure apparatus in the pressure range from 41 to 96 kb (kilobars) and in the temperature range from 1030° to 1680°C. Water pressure is probably equal to or slightly lower than total pressure during the runs. It
I. Kushiro, Y. Syono, S. Akimoto
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The evaporation of potassium from phlogopite

Journal of Thermal Analysis, 1989
The evaporation of potassium from phlogopite was investigated by roasting phlogopite with different chemical reagents. The possible reactions between reactants and the sample at different temperatures were investigated by thermogravimetry. Gypsum, calcite, sodium chloride, activated carbon, calcium chloride and fluoride were used as chemical reactants.
M. Khalighi, P. Minkkinen
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