搜索结果: 1-14 共查到“地质学 melts”相关记录14条 . 查询时间(0.07 秒)
Determination of the influence of pressure and dissolved water on the viscosity of highly viscous melts: Application of a new parallel-plate viscometer
Determination pressure dissolved water viscosity highly viscous melts:Application new parallel-plate viscometer
2012/4/1
A parallel-plate viscometer has been designed for use in an internally heated pressure vesse
(IHPV) at pressures up to 350 MPa and at temperatures up to 900 ?C. The viscosity of a melt is
determined...
Densities of melts in the CaO-MgO-Al2O3-SiO2 system
Density measurements CaO-MgO-Al2O3-SiO2 system melts
2012/3/31
Densitymeasurementshavebeenperformedon4Mg-aluminosilicatemeltsand4melts
O -SiO system(includingstoichiometriescorrespondingtothemin-intheCaO-MgO-Al
eralcomositionsa?kermanite,diopside,enstatite,andc...
The effects of silica and water on the viscosity of hydrous quartzofeldspathic melts
hydrou smelts water
2012/3/30
Theviscositiesofhydrousmelts(0.65to2.8wt%H O)withquartzofeldspathiccom-2
Qz ,andAb Qz (moleproportionscalculatedonthe
positionscorrespondingtoAb,Ab
74 26 48 52
basisofeightoxygenatoms;Ab NaAlSi O ...
Structure and dynamics of magnesium in silicate melts: A high-temperature 25Mg NMR study
Structure dynamics magnesium silicate melts high-temperature
2012/4/1
25Mg NMR spectra for several silicate and aluminosilicate melts were obtained from 1000–1470 8C. The peaks are initially very broad, but narrow with increasing temperature to near 500 Hz at the highes...
Melt viscosities in the system Na-Fe-Si-O-F-Cl: Contrasting effects of F and Cl in alkaline melts
Melt viscosities Na-Fe-Si-O-F-Cl alkaline melts
2012/4/1
The shear viscosities of melts in the system Na-Fe-Si-O-F-Cl were determined over a wide range of temperatures (400–1200 8 C) at 1 atm pressure in air. The compositions are based on the addition of Fe...
Algorithmic modifications extending MELTS to calculate subsolidus phase relations
Algorithmic modifications MELTS subsolidus phase relations
2012/4/1
Algorithmic modifications to the MELTS software package are presented in order that calculations of heterogeneous phase equilibria can be performed in the subsolidus. Methods are presented for: (1) se...
Viscosity data for hydrous peraluminous granitic melts: Comparison with a metaluminous model
Viscosity data hydrous peraluminous granitic melts Comparison
2012/3/31
We performed 27 viscosity determinations on dry and water-bearing peraluminous hap-logranitic melts. The dry melt compositions cover the range of normative corundum to be expected in peraluminous gran...
Sinoite (Si2N2O): Crystallization from EL chondrite impact melts
Sinoite Si2N2O Crystallization EL impact melts
2012/4/6
Sinoite(Si N O)waspreviouslyobservedonlyinEL6chondritesandrecentlymodeled
ashavingformedovergeologictimescalesatmetamorphictemperaturesof950C.I
foundseveral10¤C21m-sizedsubhedralandeuhedralgrainsoft...
Viscosity, fragility, and configurational entropy of melts along the join SiO2-NaAlSiO4
Viscosity fragility configurational entropy melts SiO2-NaAlSiO4
2012/4/6
ViscositiesoffourteenmeltsclosetothejoinSiO -NaAlO weremeasuredintherangePa!/s(700¤C16C)usingacombinationofconcentriccylinderandmicropenetrationtechniques.Thesecompositionscover?veisoplethsinsilicacon...
WehavecalibratedtheIRspectroscopictechniqueformeasurementofH Odissolved
inphonoliticglassesashydroxylandHOmoleculesusingmanometricandweight-loss
methods.Theresultingmolarabsorptivitycoef?cientsare1....
The solubility of H2O in peralkaline and peraluminous granitic melts
The solubility H2O peralkaline peraluminous granitic melts
2012/4/1
ThesolubilityofH Oinaseriesof13meltsbasedonahaplograniticcomposition(HPG8)havebeendeterminedfortheconditionsof500¤C5000barpressureand800C10C.Thecompositionsrepresenttheadditionsofindividualcomponents(...
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
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...
Phosphorus speciation changes across the glass transition in polymerized alkali silicate glasses and melts
Phosphorus speciation glass transition alkali silicate glasses melts
2012/4/9
In situ, high-temperature Raman spectroscopy of Na,O.9SiO, glasses and melts with and without 2 mol% P,05 has been conducted to 1491 K (near the liquidus temperature). In the temperature range from 29...
Viscosities of hydrous leucogranitic melts: A non-Arrhenian model
Viscosities hydrous leucogranitic melts non-Arrhenian model
2012/4/6
Anequation is presented for the calculation ofthe shear viscosity ofhydrous (0-12.5 wt%H20)leucogranitic meltsfrom 102to 1013Pa.s. Theequation is amultiplenonlinear least-squares regression ofadata se...