搜索结果: 1-14 共查到“矿床学与矿相学 5 GPa”相关记录14条 . 查询时间(0.046 秒)
In situ X-ray diffraction study of enstatite up to 12 GPa and 1473 K and equations of state
X-ray diffraction study of enstatite 12 GPa 1473 K equations of state
2012/4/1
Crystal structures and phase transitions of enstatite (MgSiO ) were studied by in situ X-ray dif-fraction experiments using synchrotron radiation and a multi-anvil high-pressure apparatus at pres-/c t...
Elastic wave velocities of Mg3Al2Si3O12-pyrope garnet to 10 Gpa
Mg3Al2Si3O12 10 Gpa Elastic waveve locities
2012/3/30
ElasticwavevelocitiesofMg Al Si O pyropegarnetweremeasuredto10GPaat
3 2 3 12
ambienttemperature,usingultrasonicinterferometryina1000tonsplit-cylinder,multi-
anvilapparatus(USCA-1000).Thesampleusedi...
Subsolidus and melting experiments of a K-rich basaltic composition to 27 GPa: Implication for the behavior of potassium in the mantle
K-rich basaltic composition 27GPa Subsolidus and melting experiments
2012/3/30
SubsolidusandmeltingexperimentsofaK-richbasalticcompositionhavebeenper-
2wt%)at6¤C12.5GPaandabove22.5GPa,respectively.Bothpyroxeneandgarnetma
actasmainreservoirsforKinthemantle.Sanidine(KAlSi
O )or...
57Fe nuclear forward scattering of synchrotron radiation in hedenbergite CaFeSi2O6 at hydrostatic pressures up to 68 GPa
nuclear forward scattering CaFeSi2O6 hydrostatic pressures 68 GPa
2012/3/31
The Fenuclearforwardscattering(NFS)ofsynchrotronradiationandtheuseofdia-
mondanvilswithheliumaspressuremediumallowedstudyoftheelectronicstateofFe
inthechainsilicatehedenbergiteCaFeSi O atpressuresup...
Composition, stability, and structure of a new member of the aenigmatite group, Na2Mg4+xFe3+2-2xSi6+xO20, synthesized at 13–14 GPa
Na2Mg4+xFe3+2-2xSi6+xO20 aenigmatite group 13-14GPa
2012/3/30
Anewphaseisostructuralwiththemineralsoftheaenigmatitegroup3Na
Mg FeSi O with x 0.25 0.5wassynthesizedat13¤C14GPawithasplit
2 4x 6x 2022x
sphereanvilapparatus(USSA-2000).Thestructure(for x 0.4)wasde...
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...
Sound velocities of polycrystalline MgSiO3 -orthopyroxene to 10 GPa at room temperature
Sound velocities polycrystalline MgSiO3 -orthopyroxene temperature
2012/3/31
A polycrystalline sample of MgSiO3-orthopyroxene was hot pressed at a pressure of 4 GPa and temperature of 975 8 C in a multi-anvil apparatus. The recovered specimen has a bulk density within 1% of th...
Experimental study of the system phlogopite-diopside from 3.5 to 17 GPa
Experimental study system phlogopite-diopside 3.5 to 17 GPa
2012/4/6
Onthebasisofbothnaturalsamplesandexperimentalstudies,clinopyroxeneisapo-tentialreservoirforpotassiumintheEarth!flsmantle.TheamountofKpartitioningint
clinopyroxenedependsonthephaseassemblagepresent,th...
Reaction between magnesiowüstite of lower mantle composition and core-forming Fe-Ni alloy at 1-40 Gpa
Reaction magnesiowüstite lower mantle composition core-forming Fe-Ni alloy 1-40 Gpa
2012/4/5
OneclassofmodelsfortheearlyhistoryoftheEarthrequiresthepresent-dayinventory
ofsiderophileelementsinthemantletohavebeenestablishedbyequilibriumpartitioning
betweencore-formingmetalandmantlemineralsat...
Single-crystal compression and crystal structure of clinopyroxene up to 10 GPa
Single-crystal compression crystal structure of clinopyroxene 10 GPa
2012/4/1
Thehydrostaticcompressionofsyntheticsinglecrystalsofdiopside,CaMgSi O ,and
hedenbergite,CaFeSi
O ,wasstudiedat33pressuresupto10GPabyX-raydiffraction.
,intensitydataforhedenbergitewerecollectedat12p...
Melting experiments on komatiite analog compositions at 5 GPa
Melting experiments komatiite analog compositions 5 GPa
2012/4/5
Theresultsofmulti-anvilmeltingexperimentsarereportedforawiderangeofkomatiite
analogmixeswithcompositionsinthesystemCaO-MgO-FeO-FeO Fe -Al O -SiO at
5GPa(CMASandCMFAS Fe ).Theliquiduscrystallization?...
Neutron powder diffraction study of hydrogarnet to 9.0 GPa
Neutron powder diffraction study of hydrogarnet 9.0 GPa
2012/4/1
cell parameter at each pressure (5.7-42.3 GPa) was calculated
from the positions of four reflections (321, 400, 420, and 521)
fit by pure Gaussian profiles. With the assumption that the pres-
sure ...
Neutron powder diffraction study of hydrogarnet to 9.0 Gpa
Neutron powder hydrogarnet 9.0 Gpa
2012/4/6
The crystal structure of synthetic, deuterated katoite [Ca3A12(0.D.)3] has been refined at 0.0001,0.78,3.6,6.1,7.9, and 9.0 GPa using the opposed-anvil Paris-Edinburgh cell and the POLARIS powder diff...
The equation of state of forsterite to 17.2 GPa and effects of pressure media
state of forsterite 17.2 GPa pressure media
2012/4/5
Pressure-volume X-raydiffractiondata werecollectedat eightpressuresto 17.2GPa for synthetic single-crystalforsterite, Mg2Si04.Birch-Murnaghanequation-of-state param-eters weredetermined to beKo= 125(2...