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电子探针定量分析测定FeO和Fe2O3含量常用方法的评定
电子探针微分析 直接测氧 测量不确定度评定 铁的价态
2014/6/20
直接测氧法测定矿物中FeO和Fe2O3含量，在其众多影响因素中，经测量不确定度评定发现，超轻元素氧的影响显著。一方面受电子探针仪器因素和基体校正精度的限制，氧的电子探针定量分析值的准确度很低；另一方面氧对FeO和Fe2O3含量的不确定度灵敏系数分别为8．981、9．981，将氧的测量不确定度再扩大近10倍。可见直接测氧法测定FeO和Fe2O3含量，仅因超轻元素氧的测量不确定度传递就会使其误差范围过...
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...
Examination of X-ray diffraction intensities for FeO collected in situ at high pressure and high temperature reveals that the atomic arrangements of FeO in the hexagonal struc-ture are not the same as...
A new garnet-orthopyroxene thermometer based on reversed Al2O3 solubility in FeO-Al2O3-SiO2 orthopyroxene
garnet-orthopyroxene thermometer reversed Al2O3 solubility FeO-Al2O3-SiO2 orthopyroxene
2012/4/5
Reversedphase-equilibriumdata,collectedoverthe P-T range12¤C20kbarat850¤C11C,de?nethesolubilityofAl O inferrosilite(Fs)inequilibriumwithalmandinegarnet
(Alm).Thenewdataindicatesigni?cantlylowerAlO so...
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...