搜索结果: 1-15 共查到“矿床学与矿相学 range”相关记录15条 . 查询时间(0.133 秒)
Individual particle characteristics of North African dust under different long-range transport scenarios
African dust Particle morphology CCSEM/EDX Dust origin
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2011/11/14
After urban sources, mineral dust in Madrid is the second biggest contributor to PM10, making up 40% on average, of total emissions. Approximately, 50% of the days on which the daily limit of 50 mgm3...
Transmission Electron Microscopy Study of Illitization in Pelites from the Iberian Range, Spain: Layer-by-Layer Replacement?
Analytical Electron Microscopy I-S Illite Illitization Process Polytypism Prograde Diagenesis Scanning Electron Microscopy Transmission Electron Microscopy
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2011/12/6
Abstract: A sequence of interstratified illite-smectite (I-S) and illite in Paleozoic pelites and metapelites from the Iberian Range, Spain, was studied by X-ray diffraction (XRD), scanning electron m...
Near-infrared study of short-range disorder of OH and F in monoclinic amphiboles
Amphiboles OH-stretchingregion
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2012/3/30
Amphibolesweresynthesizedalongthejoinstremolite¤C?uorotremolite,richterite¤C?u
rorichteriteandpotassic-richterite¤Cpotassic-?uororichteriteat75Cand1kbar P(H O).
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Infraredspectraoftheamphiboleswere...
Use and Limitations of Second-Derivative Diffuse Reflectance Spectroscopy in the Visible to Near-Infrared Range to Identify and Quantify Fe Oxide Minerals in Soils
Crystal Field Bands Diffuse Reflectance Spectroscopy Goethite Hematite Intervalence Charge Transfer Iron Oxides Magnetite
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2011/12/8
Abstract: We measured the visible to near-infrared (IR) spectra of 176 synthetic and natural samples of Fe oxides, oxyhydroxides and an oxyhydroxysulfate (here collectively called “Fe oxides”), and of...
Alteration of Silicic Vitric Tuffs Interbedded in Volcaniclastic Deposits of the Southern Basin and Range Province, Mexico: Evidences for Hydrothermal Reactions
Basin and Range Hydrothermal alteration Mass-balance calculations Mexico Smectites Transmission electron microscopy Volcanic tuffs Zeolites
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2011/12/1
Abstract: In Northwestern Mexico, the Miocene basins that disrupted the Sierra Madre Occidental Province are filled with sandstones and conglomerates (the Báucarit Formation) cemented mainly by zeolit...
Cathodoluminescence of quartz from sandstones: Interpretation of the UV range by determination of trace element distributions and fluid-inclusion P-T-X properties in authigenic
Cathodoluminescence quartz sandstones Interpretation UV range determination trace element distributions fluid-inclusion P-T-X properties authigenic
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2012/4/6
Quartz overgrowths from Keuper sandstones of the Paris basin wereexamined using cathodoluminescence (CL) microscopy and spectroscopy coupled witha scanning electron microscope (SEM). Withthe use ofsta...
Short-range order of (Na,K) and Al in tremolite: An infrared study
Short-range (Na,K) and Al tremolite infrared study
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2012/4/5
Assignment of the component bands in the infrared spectrum of tremolite containing A(Na,K)and TAlshows that the nontremolite components in the crystal are not randomly distributed throughout the struc...
New short-range biopyribole polysomes from the Lepontine Alps, Switzerland
New short-range biopyribole polysomes Lepontine Alps Switzerland
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2012/4/5
Retrograde hydration ofanthophyllite found in ultramafic lenses ofthe Lepontine Alps, southern Switzerland, resulted in the formation oftalc and additional ordered and disor-dered biopyribole polysome...
Short-range disorder of Si and Ti in the tetrahedral double-chain unit of synthetic Ti-bearing potassium-richterite
Short-range disorder Si Ti double-chain unit of synthetic Ti-bearing potassium-richterite
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2012/4/5
Ti-rich potassium-richterite samples weresynthesized at 900°C and 1kbar PH20and characterized by Fourier-transform infrared spectroscopy (FTIR) and Rietveld structure refinement. The infrared spectrum...
Kaolinite Particle Sizes in the <2 µM Range Using Laser Scattering
Kaolinite Laser scattering Particle size
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2011/12/30
The Clay Minerals Society Source Clay kaolinites, Georgia KGa-1 and KGa-2, have been subjected to particle size determinations by 1) conventional sedimentation methods, 2) electron microscopy and imag...
The Influence of Local Sources on the Mineral Content of Bulk Deposition Over an Altitudinal Gradient in the Filabres Range(SE Spain)
Influence of Local Sources Bulk Deposition Altitudinal Gradient the Filabres Range SE Spain
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2011/11/11
The Influence of Local Sources on the Mineral Content of Bulk Deposition Over an Altitudinal Gradient in the Filabres Range(SE Spain).
Effect of Prolonged Aging on the Transformation of Short-Range Ordered Aluminum Precipitation Products Formed in the Presence of Organic and Inorganic Ligands
Aging Gibbsite Montmorillonite Noncrystalline Al products Pseudoboehmite
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2011/12/29
More than 40 samples of Al precipitation products formed in the presence of organic (aspartic, oxalic, citric, tartaric, malic, salicylic, and tannic acid, and acetylacetone) and inorganic (chloride, ...
Effect of Tartaric Acid and pH on the Nature and Physicochemical Properties of Short-range Ordered Aluminum Precipitation Products
Aggregation Aluminum hydroxides Crystallization Porosity Precipitation Surface area Tartaric acid
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2011/12/31
The influence of tartaric acid and pH on chemical composition, morphology, surface area, and porosity of short-range ordered Al precipitation products was studied. Samples were prepared (1) at pH 8.0 ...
Influence of Citric Acid on the Formation of Short-Range Ordered Aluminosilicates
Allophane Aluminosilicate Citric acid Hydroxy-Al Imogolite Noncrystalline Pseudoboehmite
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2012/2/2
Reactions between hydroxy-Al ions and orthosilicic acid as influenced by citric acid were studied at an initial Si concentration of 1.6 ?10−3 M, Si/Al molar ratios of 0.5 and 1.0, OH/Al molar ra...
Zeolites in Eocene Basaltic Pillow Lavas of the Siletz River Volcanics, Central Coast Range, Oregon
Analcime Apophyllite Isotope abundance Laumontite Mesolite Pillow lava Smectite Zeolites
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2012/1/13
Zeolites and associated minerals occur in a tholeiitic basaltic pillow lava sequence that makes up part of the Eocene Siletz River Volcanics in the central Coast Range, Oregon. Regional zoning of zeol...