搜索结果: 1-15 共查到“矿床学与矿相学 mechanisms”相关记录26条 . 查询时间(0.128 秒)
Molecular-level mechanisms of quartz dissolution under neutral and alkaline conditions in the presence of electrolytes
quartz dissolution molecular-level mechanisms electrolytes pH conditions quantum chemistry calculation
2017/4/11
The mechanisms of quartz dissolution are affected intricately by pH conditions and electrolyte types. Most previous
studies have focused on the mechanisms of quartz dissolution under one specific con...
Mechanisms and Crystal Chemistry of Oxidation in Annite: Resolving the Hydrogen-Loss and Vacancy Reactions
Annite Biotite Crystal Chemistry Differential Thermal Analysis Ferrioxyannite Gas Chromatography Mossbauer Spectroscopy
2011/12/5
Abstract: A synthetic octahedral-site-vacancy-free annite sample and its progressive oxidation, induced by heating in air, were studied by powder X-ray diffraction (pXRD), Mössbauer spectroscopy,...
Reaction Mechanisms of Smectite Illitization Associated with Hydrothermal Alteration from Ponza Island, Italy
Atomic Force Microscopy Chemical Analysis Illite Polytype Smectite XRD
2011/12/6
Abstract: A hydrothermally altered rhyolitic hyaloclastite from Ponza island, Italy, has four alteration zones with unique clay assemblages: (1) a non-pervasive argillic zone characterized by smectite...
The interaction of pyrite {100} surfaces with O2 and H2O: Fundamental oxidation mechanisms
The interaction pyrite {100} surfaces with O2 H2O:Fundamental oxidation mechanisms
2012/4/1
The interaction of gaseous O , H O, and their mixtures with clean {100} surfaces of pyrite
2 2) were investigated in ultra-high vacuum using scanning tunneling microscopy and spectros-(FeS
copy (STM...
Pressure dependence of self-diffusion in the NaAlO2-SiO2 system: Compositional effects and mechanisms
pressures NaAlO2-SiO2 Compositional effects mechanisms
2012/3/30
MolecularDynamics(MD)simulationswereusedtostudytherelationshipbetween
structureandtransportpropertiesin?veliquids(NaAlO
O ,andNaAlSi O )inthesystemNaAlO -NaAlSi O attemperaturesrangingfrom
4000to60...
Compressibility mechanisms of alkali feldspars: New data from reedmergnerite
New data pressue reedmergnerite
2012/3/30
Structuralandvolumecompressibilitydataforreedmergnerite,NaBSi O ,wereobtained3 8
bysingle-crystalX-raydiffractionatpressuresupto4.7GPa.Thebulkmoduluswas
determinedtobe69.8(5)GPawiththepressurederiva...
Transformation Mechanisms and Interstratification in Conversion of Smectite to Kaolinite: An HRTEM Study
HRTEM Interstratification Kaolinite Smectite Transformation Mechanisms
2011/12/8
Abstract: The transformation of smectite into kaolinite and kaolinite-smectite interstratification were studied in samples belonging to the Argiles Plastiques formation of the Paris basin, by high-res...
Structural mechanisms of solid solution and cation ordering in augite-jadeite pyroxenes: II. A microscopic perspective
Structural mechanisms augite-jadeite pyroxenes microscopic perspective
2012/3/31
Infrared spectra of ordered (P2/n ) and disordered ( C2/c ) pyroxenes belonging to the join augite-jadeite were investigated at room temperature in the range 70–1400 cm 21. The spectra change as a fun...
Structural mechanisms of solid solution and cation ordering in augite-jadeite pyroxenes: I. A macroscopic perspective
Structural mechanisms augite-jadeite pyroxenes macroscopic perspective
2012/3/31
Single-crystal and powder X-ray diffraction data were collected to characterize the mac-roscopic solid-solution and cation-ordering behavior in the system augite-jadeite (low ac-mite content). We exam...
Experimental study of the Fe-Mg exchange between garnet and biotite: Constraints on the mixing behavior and analysis of the cation-exchange mechanisms
Experimental study Fe-Mg exchange garnet biotite: Constraints mixing behavior cation-exchange mechanisms
2012/4/6
NewexperimentaldataarepresentedfortheFe-Mgexchangebetweengarnetandbiotiteinthetemperaturerange600¤C80Cat0.2GPa.TheFe-Mg-Almixingpropertiesof
biotitewereevaluatedandthegarnet-biotitegeothermometerwasr...
Comparison of Structural Models of Mixed-Layer Illite/Smectite and Reaction Mechanisms of Smectite Illitization
Illite Illite/Smectite Mixed-Layer Reaction Mechanism Smectite
2011/12/22
Abstract: This paper compares mechanisms of the reaction of smectite to illite, in light of structural models for interstratified illite/smectite (I/S). The crystal structure of I/S has been described...
Timing and mechanisms of carbon isotope exchange in granulite-facies calc-silicate boudins, Rauer Group, East Antarctica
Timing and mechanisms carbon isotope granulite-facies calc-silicate boudins Rauer Group East Antarctica
2012/4/5
Mineralogicallyzoned,decimeter-diametercalc-silicateboudinsenclosedwithinparag-
neissesfromLittleItalyIsland,RauerGroup,eastAntarcticaunderwentgranulite-facies
metamorphism(P 700¤C900MPa T 840 40C)f...
Ab initio calculations on aluminosilicate Q3 species: Implications for atomic structures of mineral surfaces and dissolution mechanisms of feldspars
Ab calculations aluminosilicate Q3 species Implications for atomic structures dissolution mechanisms of feldspars
2012/4/6
Molecularorbitalcalculations onvariousaluminosilicate Q3T-OHandbridging0spe-cieswereperformed to modelatomic structural changesonmineralsurfacesthat occuras
a function ofpH. Calculatedvibrational fre...
Sorption Mechanisms of Lanthanum on Oxide Minerals
Electron microscopy Lanthanum Metal-oxides Sorption
2011/12/23
Abstract: The retention of hazardous species, including many of the lanthanides, on soils and sediments is vital for maintaining environmental quality. In this study, high-resolution transmission elec...
Structural Transformations of Interstratified Illite-Smectites from Dolná Ves Hydrothermal Deposits: Dynamics and Mechanisms
Cis-octahedron Illite-smectite Illitization Phase Transformations Trans-octahedron
2011/12/23
Abstract: Structural transformations of illite-smectite samples of hydrothermal genesis with increasing contents of illite layers were studied by X-ray powder diffraction. The samples were K-saturated...