搜索结果: 46-60 共查到“理学 High pressure”相关记录72条 . 查询时间(0.093 秒)
Sr-bearing zoisite and epidote in ultra-high pressure (UHP) metamorphic rocks from the Su-Lu province, eastern China: An important Sr reservoir under UHP conditions
Sr-bearing zoisite epidote ultra-high pressure (UHP) metamorphic rocks Su-Lu province UHP conditions
font style='font-size:12px;'>
2012/3/31
Sr-bearing zoisite and epidote are common constituents of eclogites and associated par-aschists throughout the Su-Lu ultra-high pressure (UHP) province, eastern China. The SrO content of prograde zois...
A new high-pressure silica phase obtained by molecular dynamics - Reply
high-pressure silica phase obtained molecular dynamics - Reply
font style='font-size:12px;'>
2012/4/6
Kanzaki et al. (1997) argue that SBAD structure cannot beand baddeleyiteonsidered to be intermediate between ?-PbO2 at highstructures. The similarity between SBAD and ?-PbO2pressure was emphasized by ...
A new high-pressure silica phase obtained by molecular dynamics - Discussion
high-pressure silica phase obtained molecular dynamics - Discussion
font style='font-size:12px;'>
2012/4/6
Belonoshko et al. (1996) argued that they found a new high-pressure silica phase (which they denoted SBAD) with spacegroup Pnc2 from molecular dynamics (MD) simulations. How-ever, we noticed that a si...
Intersite partitioning of Mg and Fe in Ca-free high-pressure C2/c clinopyroxene
Mg Fe Ca-free high-pressure C2/c clinopyroxene
font style='font-size:12px;'>
2012/4/6
TheintracrystallinedistributionofMgandFe ontheM1andM2octahedralsitesinhigh-PC2/c (Mg,Fe)SiOclinopyroxenehasbeendeterminedonquenchedsamplesusing
FeMo!§ssbauerspectroscopy.Althoughtherecoveredsamplesth...
The equation of state and high-pressure behavior of magnesite
The equation state high-pressure magnesite
font style='font-size:12px;'>
2012/4/5
Unit-cellparametersofmagnesitehavebeenmeasuredtohighprecisionbetween0and7GPausingsingle-crystalX-raydiffraction.Theisothermalbulkmodulusofmagnesite
determinedfrom?ttingaBirch-Murnaghanthird-orderequa...
High-pressure behavior of kyanite: Decomposition of kyanite into stishovite and corundum
High-pressure behavior Decomposition kyanite stishovite corundum
font style='font-size:12px;'>
2012/4/5
Thepressurestabilityofkyanitewasexperimentallyreversedwiththeuseofamulti-
anvilapparatus.Kyanitewasfoundtodecomposeintoitsoxidesstishoviteandcorundumbetween14 0.5GPa(at1000C)and17.5 1.0GPa(at2000C).
...
High-pressure behavior of kyanite: Compressibility and structural deformations
High-pressure kyanite Compressibility structural deformations
font style='font-size:12px;'>
2012/4/5
Structuralre?nementswerecarriedoutondatacollectedat0.001kbarwiththecrystal
inairandat0.1,25.4,37,and47kbarwiththecrystalinthediamondanvilcell.Whereas
theSitetrahedraandAl4octahedronwereincompressibl...
Compressibility and crystal structure of kyanite, Al2SiO5, at high pressure
Compressibility crystal structure kyanite Al2SiO5 high pressure
font style='font-size:12px;'>
2012/4/5
Theunit-celldimensionsandcrystalstructureofkyaniteatvariouspressuresupto
4.56GPawerere?nedfromsingle-crystalX-raydiffractiondata.Thebulkmodulusis
193(1)GPa,assuming K 4.0.Calculatedunit-straintensor...
K in clinopyroxene at high pressure and temperature: An experimental study
K clinopyroxene high pressure temperature experimental study
font style='font-size:12px;'>
2012/4/5
Clinopyroxene(Cpx)isaprincipalupper-mantlephaseforconcentratinglargecationsbuthasnotbeenviewedasamajorcrystal-chemicalreservoirforKbecauseKisconsideredoolargetoenterthelargestsite,M2,inthepyroxenestru...
Structure and elasticity of MgO at high pressure
Structure elasticity MgO high pressure
font style='font-size:12px;'>
2012/4/1
The structural and elastic properties of MgO periclase were studied up to 150 OPa with
the first-principles pseudopotential method within the local density approximation. The
calculated lattice cons...
A new type of high-temperature, high-pressure cell for spectroscopic studies of hydrous silicate melts
high-temperature high-pressure cell spectroscopic studies hydrous silicate melts
font style='font-size:12px;'>
2012/4/9
Anovel type ofhigh-temperature, high-pressure cell has been designed for near-infrared and optical spectroscopy of hydrous silicate meltsat pressures up to 3 kbar and temper-atures up to 800 0c. It co...
High pressure phase transition in titanite (CaTiOSiO4)
High pressure phase transition titanite (CaTiOSiO4)
font style='font-size:12px;'>
2012/4/9
Apressure-induced phase transition was observed in a sample of synthetic titanite (CaTiOSi04). The high-pressure structure was refined in space group A21a [a
= 6.8912(3), b = 8.6234(3), c = 6.4065(3)...
Sodium tetrasilicate: A complex high-pressure framework silicate (Na6Si3[Si9O27])
Sodium tetrasilicate high-pressure framework silicate (Na6Si3[Si9O27])
font style='font-size:12px;'>
2012/4/6
Crystalsofsodium tetrasilicate (NazSi409)havebeengrownat6GPaand 1000°Cto 9 GPaand 1500°Cusingthe MA6/8superpress atEdmonton,andthe X-raystructure was
determined atroom pressure(R=5.0%).High-pressures...
High-pressure, high-temperature Raman spectroscopic study of ilmenite-type MgSiO3
High-pressure high-temperature Raman spectroscopic study ilmenite-type MgSiO3
font style='font-size:12px;'>
2012/4/6
High-pressure and high-temperature Raman spectra ofilmenite-type MgSi03have been collected up to 7 GPa and 1030 K,respectively. The observed Raman frequency shifts withpressure and temperature wereuse...
In situ X-ray diffraction of aragonite and dolomite at high pressure and high temperature: Evidence for dolomite breakdown to aragonite and magnesite
X-ray diffraction aragonite dolomite high pressure high temperature Evidence aragonite magnesite
font style='font-size:12px;'>
2012/4/5
Energy-dispersive X-ray powder diffraction spectra have been collected for aragonite (CaCOr) and dolomite [CaMg(COr)r] at high pressure and high temperature, using synchro-tron radiation and a cub...