搜索结果: 1-15 共查到“矿床学与矿相学 Quantitative”相关记录24条 . 查询时间(0.136 秒)
Winning the 5th International Reynolds Cup Quantitative Mineralogy Competition
Winning 5th International Reynolds Cup Quantitative Mineralogy Competition
2012/3/30
Substantial advances in instrumentation, computing power and software in recent years have enabled an increasing number of laboratories to use XRD and ancillary techniques for quantitative mineralogic...
Quantitative Estimation of Palygorskite using thermogravimetric Analysis in Paleosols from Sepahanshahr, Isfahan, Iran
Quantitative Estimation Palygorskite thermogravimetric Analysis
2011/11/4
Palygorskite accounts for a major portion of the minerals present in paleosols in the central Iranian plateau. The identification and quantitative determination of this clay mineral is of great import...
Quantitative X-Ray Diffraction Analysis of Clay-Bearing Rocks from Random Preparations
Clay Minerals Marls Quantitative Analysis Shales X-ray Diffraction
2011/12/5
Abstract: An internal standard X-ray diffraction (XRD) analysis technique permits reproducible and accurate calculation of the mineral contents of rocks, including the major clay mineral families: Fe-...
Quantitative Measurement of Paramagnetic Fe3+ in Kaolinite
Electron Paramagnetic Resonance EPR Fe3+ Kaolinite
2011/12/6
Abstract: A method is proposed to measure the absolute concentration of paramagnetic Fe3+ ions in kaolinite from various geochemical environments using powder X-band electron paramagnetic resonance (E...
Improvements to the Quantitative Assay of Nonrefractory Minerals for Fe(II) and Total Fe Using 1,10-Phenanthroline
1,10-Phenanthroline Belousov-Zhabotinsky Reaction Fe Fe(II) Ferrous Iron Hydroxylamine Oscillatory Reaction Photoreduction Total Iron
2011/12/2
Abstract: A method using 1,10-phenanthroline (phen) to quantify Fe(II) and total Fe in nonrefractory minerals was modified to improve the accuracy and precision and to eliminate the inconvenience of p...
Quantitative arsenic speciation in mine tailings using X-ray absorption spectroscopy
Quantitative arsenic speciation X-ray spectroscopy
2012/3/31
X-ray absorption fine structure spectroscopy (XAFS) was used to determine arsenic (As) oxidation state, local coordination (to a radius of ┆7Aⅹaround As), and the relative proportion of different As s...
Quantitative measurement of short compositional profiles using analytical transmission electron microscopy
Quantitative measurement transmission electron microscopy
2012/3/31
Analytical transmission electron microscopy (ATEM) was used to quantitatively measure sub-micrometer compositional profiles produced experimentally by Fe-Mg interdiffusion experiments in olivine. Alth...
Quantitative Phase Analysis of Bidi-Koum Bauxites (Guinea)
Bauxite Boehmite Gibbsite Goethite Hematite Quantitative Phase Analysis Wet Chemistry X-ray Diffraction X-ray Fluorescence
2011/12/22
Abstract: Fifty-two Bidi-Koum bauxites from Guinea, Africa, of diversified chemical composition were characterized for their mineral composition. First, 14 element oxide concentrations were determined...
Refined Relationships between Chemical Composition of Dioctahedral Fine-Grained Micaceous Minerals and Their Infrared Spectra within the OH Stretching Region. Part II: The Main Factors Affecting OH Vibrations and Quantitative Analysis
Cation Mass Cation Valency IR Spectra OH Stretching Frequencies Quantitative Analysis
2011/12/9
Abstract: A new model for the interpretation of dioctahedral mica infrared (IR) spectra in the OH stretching vibration region is proposed. It is based on the analysis of the main factors responsible f...
Quantitative analysis of alkali feldspar minerals using Rietveld refinement of X-ray diffraction data
Quantitative analysis alkali feldspar minerals X-ray diffraction data
2012/4/6
Microcline +albite and albite + quartz standard mixtures werequantitatively analyzed using Rietveld refinement to investigate the reliability of the method. The method was also applied to the determin...
Quantitative Analysis of Mixtures of 1M and 2M1 Dioctahedral Micas by X-Ray Diffraction
March function Peak-area ratio Preferred orientation Quantitative analysis X-ray diffraction 1M mica 2M1 mica
2011/12/1
Abstract: Investigation of a naturally occurring mixture of dioctahedral micas prompted an examination of X-ray diffraction (XRD) techniques for obtaining quantitative estimates of 1M and 2M1 mica pro...
Quantitative Determination of Hematite and Goethite in Lateritic Bauxites by Thermodifferential X-ray Powder Diffraction
Bauxite Goethite Hematite Iron Mineral analysis Thermal treatment X-ray powder diffraction
2012/1/9
An X-ray thermodifferential powder diffraction method for the quantitative determination of goethite and hematite in lateritic bauxites has been developed and consists of measuring the integrated inte...
Quantitative Determination of Clinoptilolite in Soils by a Cation-Exchange Capacity Method
Cation-exchange capacity Clinoptilolite Quantitative mineralogy Smectite Soil Tertbutylammonium Zeolite
2012/1/11
A cation-exchange capacity (CEC) method based on ion-sieving properties was developed for the quantitative determination of clinoptilolite in soils. In this method, both zeolitic and non-zeolitic exch...
Quantitative Analysis of Mineral Mixtures Using Linear Programming
Chemical analyses Linear programming Mineral analyses Montmorillonite Opal C-T X-ray powder diffraction
2012/1/12
The approximate maximum and minimum amounts of any phase in a complex mineral mixture can be determined by solving a linear programming problem involving chemical mass balance and X-ray powder diffrac...
Quantitative Clay Mineral Analysis Using Simultaneous Linear Equations
Cation-exchange capacity Chemical analysis Linear equations Mineral analysis Quantitative mineralogy Weight loss
2012/1/13
A program of simultaneous linear equations has been developed to calculate component proportions and/or component property values for mineral mixtures in soil clays and sediments. The analysis is base...