MOTS EN ANGLAIS EN RAPPORT AVEC «ANORTHITIC»
anorthitic
anorthitic
thite
rare
plagioclase
feldspar
with
high
calcium
oxide
content
occurring
igneous
rocks
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orthos
straight
define
white
gray
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caal
calcic
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10 LIVRES EN ANGLAIS EN RAPPORT AVEC «ANORTHITIC»
Découvrez l'usage de
anorthitic dans la sélection bibliographique suivante. Des livres en rapport avec
anorthitic et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Metasomatism and the Chemical Transformation of Rock: The ...
Plagioclase feldspar grains in several Bjurb€ole chondrules have anorthitic cores
with much more albitic rims, several microns in width. Transmission electron
microscope studies show that the anorthitic cores contain myriad pores and ...
Daniel Harlov, Hakon Austrheim, 2012
2
Igneous and Metamorphic Petrology
At any T within the univariant two-phase region, L + Plss, plagioclase solid
solutions are always more calcic (anorthitic) than is the coexisting liquid, which is
more sodic (albitic). For example, the first crystals precipitating from a liquid An40
...
3
Lavas and Tephras of Merapi Volcano, Java, Indonesia: ...
Although levels of gray were not calibrated, light gray represents anorthitic
compositions and dark gray albitic compositions. .............166 Figure 5‐8: In
backscattered electron images for plagioclase feldspar, light gray levels
correspond to more ...
1981). The relative proportions of K-feldspar and al- bitic and anorthitic
plagioclases may be controlled either by the relative abundance of those
feldspars in the igneous and metamorphic source rocks or by differential stability
in earth surface ...
5
New Zealand Journal of Geology and Geophysics
This is probably because of the considerably lower value of (Ca + Mg + Fe) in C
than in B. The low alkali content of both analyses is reflected in the highly
anorthitic feldspar present in both the mode and the norm. Some of the alkalis, ...
6
Introduction to Metamorphic Textures and Microstructures
Under high-pressure granulite facies conditions (bordering eclogite facies) the
anorthitic plagioclase becomes increasingly unstable and ultimately reacts out.
The precise position of the plagioclase—out reaction in mafic and ultramafic
rocks ...
Barker, A.J. (Department of Geology, University of Southampton), Barker a J (Department of Geology University of Southampton), 2013
7
66th Conference on Glass Problems: Ceramic Engineering and ...
anorthitic liquid formed in the altered zone at operating temperature and the
balance was an alumina-rich silicate. During service, alumina crystal growth
occurred as evidenced by the angular corundum crystals seen in the
photomicrographs.
8
The Mantle and Core: Treatise on Geochemistry, Second Edition
This happens because strontium is more compatible in the albitic plagioclases
which crystallize in the later stages of fractionation than in earlier anorthitic
feldspar (Figure 1). Cotectic crystallization can, therefore, explain peaks in
strontium ...
9
Geochemistry of Hydrothermal Ore Deposits
During this ascent, the negative T/P slope of the plagioclase liq- uidus, as shown
contrasted with the positive T/P slopes of the crystal-melt equilibrium curves for
the other phases in Figure 3.8, induces precipitation of anorthitic plagioclase, the
...
Hubert Lloyd Barnes, 1997
10
Stillwater Igneous Complex, Montana a Quantitative ...
magnesian and more anorthitic leads to no definite conclusion. The amount of
magma added is probably too small to produce an effect noticeable above the
back— ground of small oscillations related to other causes. In fact, if only a few
per ...
H. H. Hess, J. R. Smith, 1960
2 ACTUALITÉS CONTENANT LE TERME «ANORTHITIC»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
anorthitic est employé dans le contexte des actualités suivantes.
The Rapid Timescales Of Caldera Volcanism
Inside the anorthitic cores were "inner cores" of even higher anorthite content, coming from a magma more mafic still. Both of these were ... «Science 2.0, févr 12»
Cryptomare magmatism 4.35 Gyr ago recorded in lunar meteorite …
Most feldspars are anorthitic (An > 90), but some are more sodic. Olivine is Fe-rich (Fa50–100) and symplectite intergrowths of hedenbergite + ... «Nature.com, déc 07»
