Results 131 to 140 of about 868 (182)

Natural and β-induced thermoluminescence in microcline

Physica Status Solidi (a), 1989
Natural as well as β-induced thermoluminescence (TL) of microcline samples is investigated. The natural TL shows an intense peak at about 300 °C while the lab-induced glow curve seems to consist of a single peak at 170 °C. The kinetic analysis of the two glow-curves shows that both actually consist of several overlapping peaks, the activation energies ...
Y. Kirsh, S. Shoval, S. Yariv, N. Kristianpoller   +3 more
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Orthoclase and microcline granites

American Journal of Science, 1958
"Some granites contain orthoclase, others only microcline. The former are mainly postkinematic, and the latter are mainly synkinematic and late kinematic granites. Orthoclase may form when emplacement is relatively rapid, microcline when it is more protracted."
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The orthoclase-microcline inversion

Mineralogical Magazine and Journal of the Mineralogical Society, 1954
The association of orthoclase and microcline in the same rock has been commented on by many writers, and from these occurrences attempts have been made to deduce the relative stability of these two low-temperature forms of potash-felspar. Ahnost all investigators have concluded that nlicrocline is the lower-temperature modification, but difficulties in
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Connoisseur's Choices Microcline, Variety Amazonite

Rocks & Minerals, 1993
(1993). Connoisseur's Choices Microcline, Variety Amazonite. Rocks & Minerals: Vol. 68, No. 4, pp. 248-250.
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Sur le microcline du Vizézy

Bulletin de la Société française de Minéralogie, 1905
Gonnard Ferdinand. Sur le microcline du Vizézy. In: Bulletin de la Société française de Minéralogie, volume 28, 1, 1905. pp. 17-21.
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Experimental shock metamorphism of maximum microcline

Journal of Geophysical Research, 1975
A series of recovery experiments are conducted to study the behavior of single-crystal perthitic maximum microcline shock-loaded to a peak pressure of 417 kbar. Microcline is found to deform in a manner similar to quartz and other alkali feldspars. It is observed that shock-induced cleavages occur initially at or slightly below the Hugoniot elastic ...
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Microcline de Couëron (Loire-Inférieure)

Bulletin de la Société minéralogique de France, 1882
Baret Charles. Microcline de Couëron (Loire-Inférieure). In: Bulletin de la Société minéralogique de France, volume 5, 7, 1882. p. 176.
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Sur le microcline à rubidium

Bulletin de la Société française de Minéralogie, 1913
Vernadsky Vladimir Ivanovitch. Sur le microcline à rubidium. In: Bulletin de la Société française de Minéralogie, volume 36, 6, 1913. pp. 258-265.
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Microcline Mimic May Be Possible Exploration Tool

The Leading Edge, 1982
There is a chance, albeit one so promising that at least one scientist is linking his immediate academic future to it, that one of the earth’s most readily found minerals — the potassium feldspar microcline — will be pivotal in future exploration for one of the most elusive — petroleum.
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The Lattice and Twinning of Microcline and Other Potash Feldspars

The Journal of Geology, 1950
The literature on potash feldspar (including the modern textbooks) gives one the impression that, within the limits of observation, the several varieties of KAlSi3O8 have the same apparent lattice "symmetry" (α and γ of microcline being quoted as 90° within the limits of ±10′).
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