搜索结果: 1-15 共查到“地质学 atomic”相关记录17条 . 查询时间(0.093 秒)
中国科学院广州地球化学研究所崔泽贤等-Atomic Spectroscopy：SIMS测试锆石氢同位素组成和水含量的分析方法以及标准物质的开发（图）
崔泽贤 锆石氢 同位素 岩浆演化
2023/8/4
确定水的含量和同位素组成对理解行星体的形成和演化具有重要意义。锆石是一种普遍存在于各类岩石中具有稳定的物理化学性质的副矿物，耐高温（1000℃）、耐机械磨蚀和化学腐蚀，且具有较低的扩散系数，因此被广泛应用于U–Pb定年、Li–O–Hf同位素体系以及Ti温度计等多种地球化学研究。此前，本研究课题组成功开发出利用二次离子质谱仪（Secondary ion mass spectroscopy, SIMS...
Determination of natural isotopic variation in antimony using inductively coupled plasma mass spectrometry for an uncertainty estimation of the standard atomic weight of antimony
Sb isotope ratios multiple collector ICP-MS element doping technique
2017/4/12
The isotopic variation of industrially produced antimony was estimated using multiple-collector inductively coupled
plasma mass spectrometry. A reproducible 123Sb/121Sb ratio of ±0.004% (2 standard d...
Atomic Force Microscopy Study of Hydrothermal Illite in Izumiyama Pottery Stone from Arita, Saga Prefecture, Japan
Atomic Force Microscopy (AFM) Hydrothermal Illite Microtopography Morphology Polytype Spiral Growth 2O Polytype
2011/12/5
Abstract: The surface microtopographic observations and analyses of Izumiyama hydrothermal illite particles were made by utilizing tapping-mode atomic force microscopy (TMAFM). The Izumiyama illite pa...
Methods for Performing Atomic Force Microscopy Imaging of Clay Minerals in Aqueous Solutions
Atomic Force Microscopy CMS Source Clay KGa-1 CMS Source Clay SWy-1 Fluid Cell Particles Polyethyleneimine Sapphire TappingMode Tempfix
2011/12/7
Abstract: Three methods were developed that allow for the imaging of any clay mineral in aqueous solutions with atomic force microscopy (AFM). The methods involve fixing the particles onto special sub...
Computer simulation of the infrared and Raman activity of pyrope garnet, and assignment of calculated modes to specific atomic motions
Computer simulation Raman activity of pyrope garnet specific atomic motions
2012/4/1
The lattice dynamics computer code PARAPOCS was successfully used to calculate the 240 vibrational frequencies of pyrope garnet, Mg3Al2Si3O12, at ambient conditions. The atomic displacement vectors (e...
Distribution of cations and vacancies and the structure of defects in oxidized intermediate olivine by atomic-resolution TEM and image simulation
Distribution of cations vacancies atomic-resolution TEM image simulation
2012/4/1
The Fe, Mg, and vacancy distributions in oxidized olivine of intermediate composition and the crystal structures of associated planar defects were examined by a combination of atomic-resolution transm...
Atomic-resolution transmission electron microscope evidence for the mechanism by which chlorite weathers to 1:1 semi-regular chlorite-vermiculite
Atomic-resolution transmission electron microscope evidence mechanism chlorite weathers semi-regular chlorite-vermiculite
2012/3/31
Atomic-resolution transmission electron microscope (TEM) images reveal that IIbb( b5 978 ) Mg,Al,Fe-chlorite from Koongarra, Australia, transforms to vermiculite via a range of intermediate chemical a...
Aqueous Pb sorption by hydroxylapatite: Applications of atomic force microscopy to dissolution, nucleation, and growth studies
Aqueous Pb sorption hydroxylapatite atomic force nucleation growth studies
2012/3/30
A combination of atomic force microscopy, scanning election microscopy, transmission electron microscopy, energy dispersive spectroscopy, electron diffraction, and X-ray dif-fraction were used to stud...
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...
Lattice-dynamical evaluation of thermodynamic properties and atomic displacement parameters for beryl using a transferable empirical force field
Lattice-dynamical thermodynamic properties atomic displacement parameters beryl transferable empirical force field
2012/4/6
Usingempiricalpotentialsderivedfrom?ttingthevibrationalfrequenciesofagroupofsilicatesandoxides,andcrystallographicinformation,aBorn-vonKarmanrigid-ionlattice-
dynamicalmodelhasbeenappliedtothewholeBr...
Morphology of Lead(II) and Chromium(III) Reaction Products on Phyllosilicate Surfaces as Determined by Atomic Force Microscopy
Atomic Force Microscopy Clay FTIR Geochemical Equilibrium Model Mica Remediation Smectite X-ray
2011/12/27
Abstract: Redox and acid-base reactions play important roles in the fate of metal contaminants in soils and sediments. The presence of significant amounts of Cr, Pb and other toxic heavy metals in con...
Lattice-dynamical evaluation of atomic displacement parameters of minerals and its implications: The example of diopside
Lattice-dynamical evaluation atomic displacement parameters minerals diopside
2012/4/6
ABorn-von Karman rigid-ion, lattice-dynamical model has been applied to diopside with the use of empirical potentials derived by fitting the vibrational frequencies of a group ofnesosilicates and oxid...
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...
Vicinal Faces on Synthetic Goethite Observed by Atomic Force Microscopy
Atomic Force Microscopy Crystal Growth Goethite
2011/12/27
Abstract: In this paper atomic force microscopy-studies are reported suggesting the existence of vicinal faces on the (100) plane of artificially grown goethite. Goethite crystals are commonly regarde...
Molecular-Scale Imaging of Clay Mineral Surfaces with the Atomic Force Microscope
Atomic force microscopy Illite Montmorillonite Oxygen distances Surface
2012/1/4
Specimen samples of Crook County montmorillonite and Silver Hill illite, purified and prepared in the Na-form, were imaged under 80% relative humidity using an atomic force microscope. The direct imag...