搜索结果: 16-30 共查到“理学 Mica”相关记录43条 . 查询时间(0.109 秒)
Size of Mica Domains and Distribution of the Adsorbed Na-Ca Ions
Electrophoretic mobility Mica domains Photon correlation spectroscopy
font style='font-size:12px;'>
2011/12/29
Mica domains have received less attention in the literature than smectite quasi-crystals. This study was conducted to determine whether mica crystals form domains in suspension, the conditions in whic...
Microtopography of Regularly-Interstratified Mica and Smectite
Au-decoration Electron microscopy Fundamental particles Interstratified mica/smectite Surface microtopography
font style='font-size:12px;'>
2011/12/1
Abstract: The gold decoration technique of electron microscopy was used to observe the microtopography of natural (001) surfaces of 1:1 regularly-interstratified mica/smectite minerals (expandable lay...
Occluded Mica in Hydroxy-Interlayered Vermiculite Grains from a Highly-Weathered Soil
Electron microprobe High-resolution transmission electron microscopy Mica transformation Vermiculite
font style='font-size:12px;'>
2011/12/1
Abstract: Hydroxy-interlayered vermiculite (HIV) is a ubiquitous phyllosilicate in the <0.05-mm fraction of sandy soils on the U.S. southeastern coastal plain. Extensive areas of soils with abundant H...
Synthesis of Expandable Fluorine Mica from Talc
Expandable mica Fluorine Intercalation Synthesis Talc
font style='font-size:12px;'>
2011/12/30
Expandable fluorine micas were synthesized using talc and Na2SiF6 at 800亱C for 2 hours in air, nitrogen, argon, and under vacuum. Gaseous SiF4, generated from Na2SiF6, and the resultant amorphous sodi...
Mica Alteration Reactions in Jurassic Reservoir Sandstones from the Haltenbanken Area, Offshore Norway
Alteration Burial diagenesis Chlorite Illite Kaolinite Mica Sandstone
font style='font-size:12px;'>
2012/1/5
Petrographic observations indicate that dolomite, siderite, pyrite, Ti oxides, quartz, and K-feldspar formed as by-products of mica alteration during diagenesis of Jurassic reservoir sandstones of the...
Treatment of Microanalyses of Intimately Mixed Products of Mica Weathering
Chemical composition Electron microprobe Mica Statistical treatment Weathering
font style='font-size:12px;'>
2012/1/4
Weathering of minerals often produces intimate mixtures of reactants and products in a smaller volume than that explored by an electron microprobe. As a result, many microanalyses are difficult to dec...
Distribution of Ca and Na Ions in Dioctahedral Smectites and Interstratified Dioctahedral Mica/Smectites
Demixing Exchangeable cations Interstratified mica/smectite Relative humidity Smectite Water X-ray powder diffraction
font style='font-size:12px;'>
2011/11/30
Abstract: The structures of 11 smectites and 2 interstratified mica/smectites containing mainly Ca2+ and Na+ as exchangeable cations in variable ratio were studied under a relative humidity of about 4...
Quantification Curves for Mica/Smectite Interstratifications by X-ray Powder Diffraction
Ethylene glycol Interstratification Mica/smectite Reichweite structures X-ray powder diffraction
font style='font-size:12px;'>
2012/1/9
X-ray powder diffraction (XRD) patterns for many interstratified mica/glycolated smectites were calculated by changing combinations of probabilities and transition probabilities of two-component layer...
Curves for the Quantification of Mica/Smectite and Chlorite/Smectite Interstratifications by X-ray Powder Diffraction
Chlorite/smectite Ethylene glycol Interstratification Mica/smectite Mixed layer quantification X-ray powder diffraction
font style='font-size:12px;'>
2012/2/2
X-ray powder diffraction intensities for many interstratified structures of mica/smectite and chlorite/smectite were calculated by changing combinations of probabilities and transition probabilities o...
Oxygen Isotope Changes during Mica Alteration
Mica Oxygen isotopes Potassium Recrystallization Saponite Weathering
font style='font-size:12px;'>
2012/2/1
Oxygen isotope analyses (δO18) of micas that were artificially depleted in K+ indicate little or no isotope exchange during the transformation. The oxidation of iron in K-depleted, iron-rich micas by ...
Electromobility of Mica Particles Dispersed in Aqueous Solutions
Electromobility Force measurements Mica Smoluchowski equation Streaming potential
font style='font-size:12px;'>
2012/1/13
Mobility measurements were made for dry-ground mica particles dispersed in aqueous KCl, Cr(NO3)3, and cetyltrimethylammonium bromide (CTAB) solutions. In the latter solutions charge reversal occurred ...
Further Investigations of a Conversion Series of Dioctahedral Mica/Smectites in the Shinzan Hydrothermal Alteration Area, Northeast Japan
Burial diagenesis Interstratification K-fixation Mica Rectorite • Smectite
font style='font-size:12px;'>
2012/2/7
A complete conversion series for mica/smectites was found in a hydrothermal alteration envelope around Kuroko-type ore deposits at the Shinzan area, Akita Prefecture, Northeast Japan. The minerals are...
Cation and Silica Relationships of Mica Weathering to Vermiculite in Calcareous Harps Soil
Relationships Mica Calcareous Harps Soil
font style='font-size:12px;'>
2012/2/13
A steady state reaction of apparent equilibrium of K mica + Ca2+ ⇄ Ca vermiculite + K+ was indicated by prolonged dissolution extractions from Blount soil clay (from northern Indiana) abundant i...
Natural Alteration of Mica and Reactions between Released Ions in Mineral Deposits
Natural Alteration Mica Released Ions Mineral Deposits
font style='font-size:12px;'>
2012/2/14
Chemical changes during the natural alteration of micas were studied by electron microprobe and classical chemical analyses of fresh and altered portions of mica flakes from 10 Canadian mineral deposi...
Mica-Derived Vermiculites as Unstable Intermediates
Mica-Derived Vermiculites Unstable Intermediates
font style='font-size:12px;'>
2012/2/15
Stability determinations were made by solubility methods on two trioctahedral mica-derived vermiculites. The phlogopite-derived vermiculite was found to be unstable under acid solution conditions, whe...