CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «ARFVEDSONITE»
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arfvedsonite în următoarea selecție bibliografică. Cărți în legătură cu
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Montdorite forms grains less than 25 urn, and generally 5-10 um, in size in the
groundmass of the comendite where it is accompanied by anorthoclase, quartz,
manganoan arfvedsonite, pyrophanite, and magnetite, with minor apatite, titanite,
...
M. E. Fleet, Robert Andrew Howie, 2003
2
Geology of the Lujavrites from the Illimaussaq Alkaline Complex
The fractures intruded by the aegirine lujavrite veins were often occupied by
crusts of felted aegirine, a feature also seen in the case of veins of arfvedsonite
lujavrite intruding naujaite and interpreted to be fracture fillings formed prior to
the ...
3
Monteregian Treasures: The Minerals of Mont Saint-Hilaire, ...
Actinolite, hornblende and richterite are rare at the locality, but arfvedsonite and
magnesio-arfvedsonite are quite common. In fact, arfvedsonite and magnesio-
arfvedsonite probably are the most abundant members of the amphibole group at
...
Joseph Anthony Mandarino, Violet Anderson, 1989
4
Alkaline Rocks and Carbonatites of the World: Africa
The intrusive rhyolites form dykes and broad dyke-like intrusions and contain
phenocrysts of quartz, alkali feldspar and hedenber- gitic pyroxene with
arfvedsonite. aegirine-augite and aenig- matite in the groundmass. A quartz
syenite intrusion ...
Alan Robert Woolley, 2001
5
Ilímaussaq Alkaline Complex, South Greenland: An Overview of ...
Note the texture and the interstitial nature of the arfvedsonite grains (black) and to
a minor extent the aegirine grains (green). Thefelsic minerals, among which
abundant nepheline crystals, are very clear, i.e. very little altered. a. plane
polarised ...
6
Rock-forming Minerals in Thin Section
Arfvedsonite a: blue-green, dark blue-green ß: pale bluish-green, grey-blue y:
pale yellowish-green, dark green, greenish blue-grey. Refraction and
birefringence: n„ =1.623-1.700 n„ = 1.631 - 1.706 n, =1.635-1.710 ©Д =0.010-
0.012 The ...
Hans Pichler, Cornelia Schmitt-Riegraf, 1997
7
Essentials of Igneous and Metamorphic Petrology
... except in alkaline rocks: eudialyite and arfvedsonite. Eudialyite is a complex
sodium-zirconium silicate that forms in sodium-rich rocks in place of zircon.
Arfvedsonite is a highly sodic amphibole with the formula Na3Fe2+4Fe3+Si8O22
(OH)2.
B. Ronald Frost, Carol D. Frost, 2013
8
Dyke Swarms: Keys for Geodynamic Interpretation: Keys for ...
In Siwana, dyke rocks are hypersolvus, fine to medium grained and consist of
quartz (modal mineralogy 24 wt%), alkali feldspar (perthite and orthoclase – 39%
), arfvedsonite (10%), aegirine (4%), riebeckite (3%) as prominant minerals (Fig.
9
Topics in Igneous Petrology
The rhyolites consist of alkali feldspar, high quartz, arfvedsonite, riebeckite,
aegirine as essential minerals. The groundmass is composed of microlite of alkali
feldspar, quartz, arfvedsonite and riebeckite. The basic components show ophitic
...
Jyotisankar Ray, Gautam Sen, Biswajit Ghosh, 2010
10
The Fourth Hutton Symposium on the Origin of Granites and ...
and Ti-spinel (TiO2 ~ 25 wt% and Al2O, ~ 32 wt%) are restricted in the
syenogranite of Longwangtang Complex. 3.2. A-type granites Mineralogically
typical A-type granites in the SCMB are marked by the presence of arfvedsonite (
Na2O > 9-8 ...
Bernard Barbarin, W. E. Stephens, 2001
ȘTIRI NOI CARE INCLUD TERMENUL «ARFVEDSONITE»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
arfvedsonite în contextul următoarelor știri.
Wadada Leo Smith, with Jamie Saft, Joe Morris, Balazs Pandi – Red …
When Smith agitates, as he does on “Arfvedsonite,” the sharp, resonating tone from his trumpet dominates the proceedings. He puts a lot of air ... «Something Else! Reviews, Sep 14»
Quest Releases Positive Pre-Feasibility Study Results for Proposed …
... aegirine, arfvedsonite) zones and generally, where alteration is most intense. Hydrothermal brecciation within these volatile-rich zones may ... «Marketwired, Oct 13»
