搜索结果: 1-15 共查到“矿床学与矿相学 phase D”相关记录73条 . 查询时间(0.171 秒)
Phase Transformations Associated with Thermal Decomposition of Duthuni Kaolin, South Africa
Phase Transformations Associated Thermal Decomposition Duthuni Kaolin South Africa
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2012/3/14
Phase Transformations Associated with Thermal Decomposition of Duthuni Kaolin, South Africa.
Solid-liquid phase equilibria of binary salt hydrate mixtures involving ammonium alum
phase diagrams aluminum salts differential drop calorimetry salts hydrates
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2011/11/10
Summary The solid-liquid phase diagrams of binary mixtures of ammonium alum with ammonium iron(III) alum, with aluminum nitrate nonahydrate and with ammonium nitrate and of aluminum sulfate hexadecahy...
Phase Analysis of Clays Using an Expert System and Calculation Programs for X-Ray Diffraction by Two- and Three-Component Mixed-Layer Minerals
Clay Analysis Expert System Mixed-Layer Minerals Phase Analysis XRD
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2011/12/2
Abstract: X-ray phase analysis of clays is difficult because these materials generally consist of a mixture of different phases, i.e., mixed-layer minerals, individual clay minerals (non mixed-layer),...
Mg-Rich Smectite “Precursor” Phase in the Tagus Basin, Spain
Precursor Clay Smectite Stevensite Tagus Basin (Spain) Incipient Crystallization
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2011/12/6
Abstract: The pink clays from the Tagus basin, Spain, were characterized by X-ray difraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM), and transmission electron microscopy...
Interlayer structure, anion dynamics, and phase transitions in mixed-metal layered hydroxides: Variable temperature 35Cl NMR spectroscopy of hydrotalcite and Ca-aluminate hydrate (hydrocalumite)
Cl -intercalated hydrotalcite Ca-aluminate hydrate Variable temperature
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2012/3/31
The Cl NMR spectroscopy of Cl -intercalated hydrotalcite and the Ca-aluminate hydrate, the presence of
hydrocalumite (Friedel°Os salt) demonstrates dynamical behavior of interlayer C
dynamical orde...
Is "metamictization" of zircon a phase transition?
∞metamictizatio phase transition zircon
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2012/3/31
Diffuse X-ray scattering from single crystals of metamict zircon reveals residual crystallinity18
?-decay events/g). The experimental evidence does not sug-
even at high fluences (up to 7.2 ? 10
g...
"Cs-tetra-ferri-annite:" High-pressure and high-temperature behavior of a potential nuclear waste disposal phase
High pressure High temperature geometric
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2012/3/30
Structuredeformationsinducedbypressureandtemperatureinsynthetic!fi!fiCs-tetra-ferr2 3 3annite!fl!fl1M[
(Fe Fe )(Si Fe Al )O (OH) ],spacegroup C2/m, werean-1.78 6.15 0.05 20 45.93 0.07 1.80
alyzedtoi...
A new pyroxene structure observed at high pressure: Single-crystal X-ray and Raman study of Pbcn-P21cn phase transition in protopyroxene
Single-crystal X-ray high pressure phase transition
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2012/3/30
Thecrystalstructureof(Mg Li Sc )Si O protopyroxenehasbeenstudiedwithsin-
1.54 0.23 0.23 2 6
le-crystalX-raydiffractionatpressuresto9.98GPaandRamanspectroscopyto10.4cn
GPa.A?rst-orderdisplacivephase...
A moganite-type phase in the silica analog phosphorus oxynitride
phosphorus oxynitride silica system moganite
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2012/3/30
A new polymorph of phosphorus oxynitride (PON) a silica analog has been recovered at ambient
pressure by quenching after a treatment at 850 ?C under a pressure of 2.5 GPa using cristobalite- or
quar...
In situ structure determination of the high-pressure phase of Fe3O4
high-pressure Fe3O4 GPa
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2012/3/30
The crystal structure of a high-pressure Fe O phase was determined by in situ X-ray diffraction3 4
measurements at high pressure and temperature, using an imaging plate detector and monochromatic
s...
Iron sulfides from magnetotactic bacteria: Structure, composition, and phase transitions
Iron sulfides magnetotactic bacteria Structure composition phase transitions
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2012/4/1
The top 20 cm of sediments at active cold seeps in Monterey Bay, coastal California,contain framboidal pyrite that occurs as infillings and pseudomorphs of the chambers of the tests of foraminifera an...
Bacterial reduction of crystalline Fe3+ oxides in single phase suspensions and subsurface materials
Bacterial reduction crystalline Fe3+ oxides single phase suspensions subsurface materials
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2012/4/1
Microbiologic reduction of synthetic and geologic Fe31 oxides associated with four Pleis-tocene-age, Atlantic coastal plain sediments was investigated using a dissimilatory Fe reducing bacterium ( She...
Coprecipitates of Cd, Cu, Pb and Zn in Iron Oxides: Solid Phase Transformation and Metal Solubility after Aging and Thermal Treatment
Aging Study Coprecipitation Electron Microprobe Analysis Ferrihydrite Transformation Metal Solubility Rate of Titration Thermal Treatment
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2011/12/8
Abstract: Solid phase transformation and metal solubility were monitored after coprecipitation of Cd2+, Cu2+, Pb2+ and Zn2+ with Fe3+ to form ferrihydrite by titration to pH 6. The (co)precipitates we...
Solid-solid reactions mediated by a gas phase: An experimental study of reaction progress and the role of surfaces in the system olivine+iron metal
Solid-solid reactions olivine+iron metal
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2012/4/1
The intergranular fluid involved in solid-solid reactions is tacitly assumed to be a melt or a (C-O-H-S-Cl-F)-bearing phase. We have studied the system olivine 1metal using dif-fusion couple experimen...
Experimental phase-equilibrium study of Al- and Ti-contents of calcic amphibole in MORB--A semiquantitative thermobarometer
Experimental phase-equilibrium Al- and Ti-contents calcic amphibole MORB--A semiquantitative thermobarometer
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2012/4/1
Calcic amphiboles were synthesized from a natural mid-ocean ridge basalt (MORB) in 39 experiments representing 24 sets of pressure-temperature ( P -T ) conditions ranging from 650?50 8C, 0.8?.2 GPa, a...