搜索结果: 16-30 共查到“地质学 High-resolution”相关记录36条 . 查询时间(0.2 秒)
Surface Layer Types of Kaolinite: A High-Resolution Transmission Electron Microscope Study
2:1 Layer Clays HRTEM Kaolinite Pyrophyllite Smectite Surface Layer
2011/12/6
Abstract: High-resolution transmission electron microscopy (HRTEM) examinations have indicated that three types of surface layers may exist in natural kaolinite crystals. Type 1 has the expected 7-侌 s...
High-resolution synchrotron X-ray powder diffraction and Rietveld structure refinement of two (Mg0.95,Fe0.05)SiO3 perovskite samples synthesized under different oxygen fugacity conditions
high-resolution synchrotron X-ray powder diffraction
2012/3/30
Thispaperpresentshigh-resolutionsynchrotronX-raypowderdiffractiondataat290K
ontwoFe-bearing,polycrystallinesilicateperovskitesampleswithapproximatecompo-
Fe )SiO synthesizedat25GPaand1920Kinamulti-a...
Topological and Thermal Properties of Surfactant-Modified Clinoptilolite Studied by Tapping-ModeTM Atomic Force Microscopy and High-Resolution
Hexadecyltrimethylammonium Muscovite Mica Surface Imaging Thermal Analysis Zeolite
2011/12/1
Abstract: Unmodified and surfactant-modified clinoptilolite-rich tuff (referred to here as 揷linoptilolite? and muscovite mica were examined with tapping-mode atomic force microscopy (TMAFM) and high-r...
Coordination of Ti4+ in silicate glasses: A high-resolution XANES spectroscopy study at the Ti K edge
Coordination of Ti4+ silicate glasses high-resolution XANES spectroscopy study Ti K edge
2012/4/1
The coordination environment of Ti in eight Ti-bearing glasses of the Na Si-Na,Ti
y4 ;:join (NTS) and in six ATY2 glasses (A20Ti02.2Y02, with A =Na, K, ~r Rb andSi or Ge) was determined using high-re...
Structural behavior, crystal chemistry, and phase transitions in substituted leucite: High-resolution neutron powder diffraction studies
Structural behavior crystal chemistry phase transitions substituted leucite High-resolution neutron powder diffraction studies
2012/4/1
High-resolution neutron powder diffraction was used to study phase transitions in theleucite phases of KAlSi206, RbAlSi20", CsAlSi206, and KFeSi206. Thetemperature-depen-dent structural behavior invol...
Characterization of Soil Clay Minerals: Decomposition of X-ray Diffraction Diagrams and High-Resolution Electron Microscopy
Acid Soil Decomposition of X-ray Patterns High-Charge Smectite High-Resolution Electron Microscopy Illite/Smectite Mixed Layers X-ray Diffraction
2011/12/27
Fine clays (<0.1 祄) extracted from an acid soil developed in a granite saprolite from the Massif Central, France, were characterized by X-ray diffraction (XRD) using a curve decomposition program, and...
Formation of Authigenic Illite in Palaeocene Mudrocks from the Central North Sea: A Study by High Resolution Electron Microscopy
Authigenic illite High resolution electron microscopy Illite-smectite
2011/12/28
The mode of growth of authigenic, lath-shaped illitic particles has been investigated using field emission scanning electron microscopy (FESEM) and high resolution transmission electron microscopy (HR...
Characterization of Untreated and Alkylammonium Ion Exchanged Illite/Smectite by High Resolution Transmission Electron Microscopy
Alkylammonium Clays Diagenesis Illite Interstratification Smectite Transmission Electron Microscopy
2011/12/28
High resolution transmission electron microscopy (HRTEM) have been performed on dispersed portions of one R > 1 and two R3 illite/smectite (I/S) samples from Silurian K-bentonites. R > 1 sample was st...
Charge Heterogeneity and Nanostructure of 2:1 Layer Silicates by High-Resolution Transmission Electron Microscopy
Charge heterogeneity Clays High-resolution transmission electron microscopy Illite Montmorillonite Nanostructure Smectite Vermiculite
2011/12/30
Several soil and reference smectites and vermiculites and one reference illite were examined by high-resolution transmission electron microscopy (HRTEM) to decipher the nanostructure and layer charge ...
MINERALOGIC VARIATIONS IN A PLEISTOCENE HIGH-RESOLUTION EOLIAN RECORD FROM THE OWEN RIDGE, WESTERN ARABIAN SEA (SITE 722): IMPLICATIONS FOR SEDIMENT SOURCE CONDITIONS AND MONSOON HISTORY
MINERALOGIC VARIATIONS SOURCE CONDITIONS MONSOON HISTORY
2011/11/8
Bulk mineralogy of the terrigenous fraction of 99 samples from ODP Site 722 on the Owen Ridge, western Arabian Sea, has been determined by x-ray diffraction, using an internal standard method. The sam...
The Structure and Thermal Transformations of Allophanes Studied by 29Si and 27Al High Resolution Solid-State NMR
Allophane ?Imogolite ?Dehydroxylation ?Crystal structure ?Nuclear magnetic resonance ?Thermal treatment ?X-ray powder diffraction
2011/12/31
Examination of two volcanic and two precipitated allophanes by solid-state NMR, thermal analysis and X-ray powder diffraction shows three of the samples to contain structural features similar to both ...
High-Resolution Transmission Electron Microscopy Study of Mn-Oxyhydroxide Transformations and Accompanying Phases in a Lateritic Profile of Moanda, Gabon
Energy-dispersive X-ray analysis Hausmannite High-resolution transmission electron microscopy Laterite Manganese Manganite Pyrolusite Topotactic transformation
2011/12/31
Unheated natural mixtures of manganite and secondary pyrolusite, from the same lateritic manganiferous sequence, were studied in different orientations by high-resolution transmission electron microsc...
High-Resolution Transmission Electron Microscopy and Electron Diffraction of Mixed-Layer Illite/Smectite: Experimental Results
Electron diffraction Fundamental particle High-resolution transmission electron microscopy Illite/smectite Interstratification Smectite
2011/11/30
Abstract: High-resolution transmission electron microscopy (HRTEM) and electron diffraction experiments have been performed on R1 and R> 1 illite/smectite (I/S) samples that from X-ray powder diffract...
Direct High-Resolution Transmission Electron Microscopic Measurement of Expandability of Mixed-Layer Illite/Smectite in Bentonite Rock
Expandability Fundamental particle High-resolution transmission electron microscopy Illite/smectite Interstratification
2012/1/4
Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using procedur...
High-Resolution Transmission Electron Microscopy of Mixed-Layer Illite/Smectite: Computer Simulations
High-resolution transmission electron microscopy Illite Image simulation Mixed layer Smectite
2011/11/30
Abstract: High-resolution transmission electron microscope images of dioctahedral mixed-layer clay structures (illite/smectite) having various substitutional and polytypic schemes were modeled using c...