搜索结果: 1-15 共查到“地质学 spectroscopic study”相关记录24条 . 查询时间(0.125 秒)
FTIR spectroscopic study of palygorskite: Influence of the composition of the octahedral sheet
Palygorskite FTIR spectroscopy Structural formulae Octahedral sheet
2011/11/4
The influence of chemical composition to position and intensity of the absorption bands observed in the FTIR spectra of palygorskite has been studied by a detailed comparative study of six samples. Pa...
Spectroscopic study of the dehydration and/or dehydroxylation of phyllosilicate and zeolite minerals
phyllosilicate zeolite minerals spectroscopic
2011/11/8
Phyllosilicates on Mars mapped by infrared spectroscopic techniques could have been affected by dehydration and/or dehydroxylation associated with chemical weathering in hyperarid conditions, volcanis...
Thermal analysis and Infrared emission spectroscopic study of kaolinite–potassium acetate intercalate complex
Kaolinite Potassium acetate Intercalation complex Infrared emission spectroscopy
2011/11/10
The thermal behavior and decomposition of kaolinite–potassium acetate intercalation complex was investigated through a combination of thermogravimetric analysis and infrared emission spectroscopy. Thr...
MODIFICATION OF FIBROUS SILICATES SURFACES WITH ORGANIC DERIVATIVES – AN INFRARED SPECTROSCOPIC STUDY
FIBROUS SILICATES SURFACES ORGANIC DERIVATIVES
2011/11/7
This contribution explores the interaction of the fibrous silicates, palygorskite, sepiolite and chrysotile with a wide range of organic agents. Infrared spectroscopy (IR) methods are essential for th...
Vibrational spectroscopic study of minerals in the Martian meteorite ALH84001
Vibrational spectroscopic minerals Martian meteorite ALH84001
2012/4/1
Micro-Raman spectra of carbonates, silica and amorphous plagioclase, and both micro-Raman
and IR reflectance spectra of phosphates in ALH84001 are reported. Data from these vibrational
techniques co...
Single-crystal Raman spectroscopic study of dickite
Single-crystal Raman spectroscopic dickite
2012/3/30
Raman spectra were obtained from the (001), (010), and (100) faces of a St. Claire dickite specimen of known orientation. Raman spectra collected from the (010) and (100) faces of dickite are reported...
Intercalation of Halloysite: A Raman Spectroscopic Study
Halloysite Intercalation Kaolinite Raman Raman Microprobe X-ray Diffraction
2011/12/22
Abstract: Intercalates from an ordered halloysite with urea and potassium acetate were studied using Raman microscopy. The urea intercalate showed new Raman bands at 3387, 3410, 3497 and 3598 cm−...
XAFS spectroscopic study of uranyl coordination in solids and aqueous solution
XAFS uranyl coordination solids aqueous solution
2012/4/5
ToevaluatetheabilityofX-rayabsorption?nestructure(XAFS)spectroscopytoelu-
cidatethecoordinationenvironmentofUatthesolid-waterinterface,weconductedan
in-depthanalysisofexperimentalXAFSdatafromUsolida...
Si-Al order and the I1 - I 2/c structural phase transition in synthetic CaAl2Si2O8- SrAl2Si2O8 feldspar: A 29Si MAS-NMR spectroscopic study
Si-Al order I1 - I 2/c structural phase transition synthetic CaAl2Si2O8- SrAl2Si2O8 feldspar A 29Si MAS-NMR spectroscopic study
2012/4/1
We present 29SiMAS-NMR spectroscopic data for a series of synthetic feldspar samples
along the join CaAI2Si20g-SrAI2Si20g, from which the composition dependence and cou-
pling of order parameters de...
High-pressure, high-temperature Raman spectroscopic study of ilmenite-type MgSiO3
High-pressure high-temperature Raman spectroscopic study ilmenite-type MgSiO3
2012/4/6
High-pressure and high-temperature Raman spectra ofilmenite-type MgSi03have been collected up to 7 GPa and 1030 K,respectively. The observed Raman frequency shifts withpressure and temperature wereuse...
A synchrotron radiation, HRTEM, X-ray powder diffraction, and Raman spectroscopic study of malayaite, CaSnSiO5
synchrotron radiation HRTEM X-ray powder diffraction Raman spectroscopic study malayaite CaSnSiO5
2012/4/5
Synchrotron radiation, high-resolution transmission electron microscopy (HRTEM),X-ray powder diffraction, and Raman spectroscopy wereused to study the structure and thermal behavior of malayaite, CaSn...
An in situ Raman spectroscopic study of Na2Si2O5 at high pressures and temperatures: Structures of compressed liquids and glasses
situ Raman spectroscopic study Na2Si2O5 high pressures temperatures Structures glasses
2012/4/5
Raman spectra ofNa2Si20sglassand Na2Si20sliquid have been collected in situ to pressuresof16GPaat300Kand 10GPaat885K.Inglasscompressed at300K,bands
associated withintertetrahedral bridging 0 atoms de...
The Transformation of Lepidocrocite During Heating: A Magnetic and Spectroscopic Study
Dehydroxilation IR spectra Lepidocrocite Maghemite Phase transformation
2011/12/29
Infrared (IR) spectroscopy, in combination with magnetic methods, was used to study the thermally induced transformation of synthetic lepidocrocite (γ-FeOOH) to maghemite (γ-Fe2O3). Magnetic analyses ...
Rietveld Refinement and Fourier-Transform Infrared Spectroscopic Study of the Dickite Structure at Low Temperature
Dickite FTIR Infrared spectroscopy Low temperature Neutron powder diffraction Rietveld refinement
2011/12/29
The full structure of dickite from St. Claire, Pennsylvania, including hydrogen atoms, was refined in space group Cc using time-of-flight neutron powder diffraction data obtained at 12 K and Rietveld ...
X-ray Photoelectron Spectroscopic Study of Cobalt(II) and Nickel(II) Sorbed on Hectorite and Montmorillonite
Cation exchange Cobalt Hectorite Ligand exchange Montmorillonite Nickel X-ray photoelectron spectroscopy
2011/11/30
Abstract: The safe disposal of 60Co, 63Ni, and 59Ni has required considerable information on the interactions of Co2+ and Ni2+ with clay minerals in the geosphere. X-ray photoelectron spectroscopy (XP...