CHE SIGNIFICA OLIVINE IN INGLESE
Olivina
L'olivina minerale è un silicato di ferro di magnesio con la formula 2SiO4. È un minerale comune nella superficie sotterranea della Terra, ma pianta rapidamente in superficie. Il rapporto di magnesio e ferro varia tra i due membri della serie solida di soluzione: forsterite e fayalite. Le composizioni di olivina vengono comunemente espressa come percentuali molari di forsterite e fayalite. Forsterite ha una temperatura di fusione insolitamente elevata a pressione atmosferica, quasi 1900 ° C, ma la temperatura di fusione di fayalite è molto più bassa. La temperatura di fusione varia benissimo tra i due membri finali, come altre proprietà. Olivine incorpora solo piccole quantità di elementi diversi dall'ossigeno, dal silicio, dal magnesio e dal ferro. Manganese e nichel sono generalmente gli elementi addizionali presenti nelle concentrazioni più alte. Olivine dà il suo nome al gruppo di minerali con una struttura correlata che comprende tefroiti, monticelliti e kirschsteinite. La struttura in cristallo di Olivine incorpora aspetti del reticolo orthorhombic P Bravais, che provengono da ogni unità di silicio unita da cationi bivalenti metallici con ogni ossigeno in SiO4 legato a 3 ioni metallici.
definizione di olivine nel dizionario inglese
La definizione di olivina nel dizionario è un minerale verde oliva del gruppo olivino, che si trova nelle rocce ignee e metamorfiche. La varietà verde chiaro è usata come gemma. Composizione: silicato di ferro magnesio. Formula: 2SiO4. Struttura cristallina: ortorombica Chiamata anche crisolite. Un'altra definizione di olivina è qualsiasi minerale nel gruppo avente la formula generale 2SiO4.
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10 LIBRI IN INGLESE ASSOCIATI CON «OLIVINE»
Scopri l'uso di
olivine nella seguente selezione bibliografica. Libri associati con
olivine e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
Industrial Minerals and Extractive Industry Geology: Based ...
The main end use of olivine (about 75% of the sand production) is as a slag
conditioner in pig iron production. The presence of olivine promotes the fluidity
and removes impurities in the form of slag from the molten iron. Olivine is used as
slag ...
P. W. Scott, Colin Malcolm Bristow,
2002
2
Intraplate Volcanism in Eastern Australia and New Zealand
These lavas have a wide range of Ca-rich and Ca-poor pyroxene-phenocryst
compositions, together with both Mg- and Fe-rich olivine, Ca and Na plagioclase,
and sanidine. 5.3.2 Olivine and pyroxene Olivine/host-rock relationships The ...
R. Wally Johnson, Jan Knutson, Stuart Ross Taylor,
1989
3
Magmatic Sulfide Deposits: Geology, Geochemistry and Exploration
(150-300 ppm in Feeder Olivine Gabbro vs 500-900 in Leopard Trocto- lite). The
Reid Brook Zone. In the Reid Brook Zone olivine in Feeder Olivine Gabbro is
similarly depleted in Ni (less than 250 ppm in Feeder Olivine Gabbro as
compared ...
4
Plates, Plumes, and Planetary Processes
Establishment of the composition of the most-magnesian olivine phenocryst or
microphenocryst for the suite, as a target for the olivine addition calculations. In
any magma suite, there will be found a range in olivine phenocryst compositions,
...
Gillian R. Foulger, Donna M. Jurdy,
2007
5
Ophiolite Concept and the Evolution of Geological Thought
Extending this line of reasoning to ultrabasic rocks, Bowen argued that olivine
basalt, the igneous rock type most similar to ultrabasic rocks, could not contain
more than a moderate amount of olivine unless the excess olivine had been
present ...
Yildirim Dilek, Sally Newcomb,
2003
6
Rock-Forming Minerals: Orthosilicates, Volume 1A:
The dependence of the olivine composition on that of the liquid is shown
graphically in Fig. 32 in which the isothermal lines represent olivine liquidus (
saturation) surfaces, and the lines of constant olivine composition are drawn from
the ...
William Alexander Deer, Robert Andrew Howie, J. Zussman,
1982
7
New Zealand Journal of Geology and Geophysics
5. Olivine ncpheunite. Flow exposed in quarry 0-9 km north-east of Maungapu.
Mineralogy is very similar to 4. Nodules are very abundant in this flow. 6. Olivine
nephelinite. Flow exposed on coast at Pere- kiatu. Mineralogy is identical to 4. 7.
8
Petrology of the Ocean Floor
1-10. Phase diagram for the system diopside-forsterite-anorthite (after Osborn
and Tait, 1952), showing the temperature curves for different melts. The
crystallization of all three phases (olivine, pyroxene and plagioclase) occurs in
the piercing ...
9
8th International Kimberlite Conference: The J. Barry ...
Histogram showing Mg-numbers [ 1 00*Mg/(Mg + Fe)] for olivine inclusions from
De Beers Pool diamonds. Olivine inclusions contained in chromite inclusions
exhibit the most depleted compositions. Fig. 6. Histogram of Mg-numbers [Mg/(
Mg + ...
10
Generation of Basaltic Magma
Of all the named rock types, only eclogite is still considered a potential source of
basaltic magmas, but it lacks what appears to be a key phase, namely olivine.
OLIVINE— AN IMPORTANT SOURCE-ROCK CONSTITUENT? Glassy basalts
with ...
Hatten Schuyler Yoder,
1976
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «OLIVINE»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
olivine nel contesto delle seguenti notizie.
A 'Third Way' to fight climate change
Chemical methods of capturing CO2 are spectacularly varied — from direct air capture using resins, to the use of crushed olivine (a mineral that ... «Hamilton Spectator, lug 15»
Pangolin receives positive Kimberlite indicator analyses at …
The tests also found the presence of clinopyroxenes, garnets, forsteritic olivine and phlogopite in the samples. According to Pangolin, the ... «Energy Business Review, lug 15»
UPSC Civil Services GK update - Physical Geography: Rocks and …
a) The major elements in olivine are magnesium, iron & silica. b) It is usually in green colour and can be found in basaltic rocks. c) It is mostly ... «PaGaLGuY, lug 15»
Botswana Malatswae Diamond Project: Pangolin Reports Positive …
Clinopyroxenes, garnets, forsteritic olivine and phlogopite have also been confirmed. The clinopryoxenes and garnets are from both the ... «Azomining, lug 15»
The Ice of Pluto is More Diverse Than We Realized
Geochemically, it can be formed via a process known as serpentenization, involving water, carbon dioxide, and the mineral olivine—this is ... «io9, lug 15»
These crazy plans to reverse climate change didn't get Richard …
Smartstones, a VEC finalist from the Netherlands, wants to mill olivine and spread it around in places where it will get weathered naturally. «Business Insider Australia, lug 15»
Pangolin Receives Positive Kimberlite Indicator Analyses for …
Clinopyroxenes, garnets, forsteritic olivine and phlogopite have also been confirmed. The clinopryoxenes and garnets are from both the ... «Junior Mining Network, lug 15»
Exploration Geological Model and Exploration Target for BK16
When fresh, this is an almost black kimberlite with pale green to white altered olivine macrocrysts (typically 3 mm but can be up to 10 mm), and ... «MarketWatch, lug 15»
APS recruits from Philadelphia, Sacramento to fill top admin spots
Olivine Roberts, chief academic officer for the Sacramento schools, will become Atlanta's Chief Academic Officer and focus on academic ... «Atlanta Journal Constitution, lug 15»
Mars may have had continental crust like ancient Earth
... crust on Earth, fairly high density, dark coloured, with a lot of mineral called olivine, and that's what previous rovers found," says Wiens. «ABC Science Online, lug 15»