搜索结果: 1-14 共查到“地质学 MgO”相关记录14条 . 查询时间(0.093 秒)
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...
Computer simulation of pressure-induced structural transitions in MgO [001] tilt grain boundaries
pressure-induced tilt grain boundaries
2012/3/30
Atomisticsimulationsusinglatticeandmoleculardynamicswerecarriedoutonthe
{210},{310},and{410}tiltgrainboundariesofMgOasafunctionofpressureupto100
GPaatasingletemperatureof600K.Thecalculationsshowasig...
Biotite dehydration, partial melting, and fluid composition: Experiments in the system KAlO2-FeO-MgO-SiO2-H2O-CO2
KAlO2-FeO-MgO-SiO2-H2O-CO2 Biotite dehydration partial melting
2012/3/30
Biotitesolid-solutionsareasigni?cantH Oreservoirinthelithosphere,andtheassem-2
blageBtOpxKfsQtziscommonlyusedtoestimate a inhigh-grademetamorphicHO2
andmagmaticrocks.Herewereportexperimentalconstrai...
A convenient method for measuring ferric iron in magnesiowustite (MgO-Fe1-xO)
method measuring ferric iron magnesiowustite (MgO-Fe1-xO)
2012/4/1
We present a new oxybarometer for magnesiowu¨stite-bearing systems, which is easily applied using widely available techniques. A scale relating the proportion of Fe31[a5Fe31/(Fe311 Fe21)] to the posit...
Melting experiments in the systems CaO-MgO-Al2O3-SiO2 and MgO-SiO2 at 3 to 15 GPa
Melting experiments CaO-MgO-Al2O3-SiO2 MgO-SiO2
2012/3/31
The results of multi-anvil melting experiments are reported for a range of compositions in the system CaO-MgO-Al2O3-SiO2. The liquidus crystallization fields for forsterite, or-thopyroxene, clinopyrox...
An experimental study of the pressure-temperature stability of MgMgAl-pumpellyite in the system MgO-Al2O3-SiO2-H2O
An experimental study of the pressure-temperature stability of MgMgAl-pumpellyite in the system MgO-Al2O3-SiO2-H2O
2012/3/31
The stability field of MgMgAl-pumpellyite, Mg5Al5SiO21(OH)7, was determined in the system MgO-Al2O3-SiO2-H2O in reversal experiments at pressures between 34 and 100 kbar and temperatures in the range ...
Phase relations in the system MgO-NaCl-H2O: The dehydroxylation of brucite in the presence of NaCl-H2O fluids
Phase relations MgO-NaCl-H2O dehydroxylation NaCl-H2O fluids
2012/3/31
The dehydroxylation of brucite was determined in the presence of NaCl-H2O fluids containing 0, 2, 6, 11, 14, 18, 30, and 38 mol% NaCl (0.0, 5.5, 17.0, 28.8, 34.5, 41.7,58.2, and 66.6 wt% NaCl) to ;250...
Ab-initio synthesis and TEM confirmation of antigorite in the system MgO-SiO2-H2O
Ab-initio synthesis TEM confirmation antigorite system MgO-SiO2-H2O
2012/4/5
Forthe?rsttime,chemicallypure,nearlysingle-phaseantigorite,Mg Si O (OH) ,wassynthesizeddirectlywithoutusingseeds.Startingmaterialwasastoichiometricmix-tureofpreviouslysynthesizedtalcandbrucite.Synthes...
A simulation study of induced failure and recrystallization of a perfect MgO crystal under non-hydrostatic compression: Application to melting in the diamond anvil cell
simulation study induced failure recrystallization MgO crystal non-hydrostatic compression Application melting diamond anvil cell
2012/4/5
Recentexperimentalstudiesrevealedthatthethermalpressureinadiamond-anvilcell
withlaserheatingcanbelarge.Accountingforthispressureisthereforeimportantfor
treatmentofexperimentalresults.Inearlierstudie...
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...
MgO—SiO2—Sr—O体系的亚固相相关系及有关含Cr^2＋端员矿物的热力学特征。
Experimental reversals of chlorite compositions in divariant MgO + Al2O3 + SiO2 + H2O assemblages
Experimental reversals chlorite compositions MgO + Al2O3 + SiO2 + H2O assemblages
2012/4/6
The compositions ofchlorite in divariant assemblages involving orthopyroxene + for-sterite and spinel + corundum werereversed at a range oftemperatures for P= 14kbar and a range of pressures for T = 8...
Molecular dynamics of NaCl (B1 and B2) and MgO (B1) melting: Two-phase simulation
Molecular dynamics NaCl (B1 and B2) MgO (B1) Two-phase simulation
2012/4/5
Melting of NaCl and MgOhas been simulated witha two-phase molecular dynamics method at constant pressure using newly developed interaction potentials. Equations of state for NaCl and MgOsimulated by m...
Synthetic Allophane and Layer-Silicate Formation in SiO2-Al2O3-FeO-Fe2O3-MgO-H2O Systems at 23°C and 89°C in a Calcareous Environment
Allophane Hisingerite Hydrous feldspathoid Nontronite Poorly-ordered layer silicates “Protoimogolite” Saponite Synthesis
2012/1/4
Solutions containing AlCl3 and Si(OH)4 (concentrations ≤ 1.5 mM with molar Si:Al ratios of 1:2, 1:1 and 3:1) and FeCl2 (0, 0.5 and 1.0 mM) were adjusted to pH 8 with Ca(OH)2, and incubated at 23°C and...