搜索结果: 1-15 共查到“地质学 spectroscopic”相关记录43条 . 查询时间(0.047 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...
Spectroscopic characterization of a sepiolite-based Maya Blue pigment
Maya Blue sepiolite indigo spectroscopy host/guest interaction
2011/11/7
Maya blue, an ancient pigment used by Mayas in Mesoamerica, can be considered an ancestor of modern nano-composites as it forms by grinding and heating the guest indigo molecule with a hosting clay fr...
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...
Raman spectroscopic identification of B-free and B-rich kornerupine (prismatine)
Raman spectroscopy kornerupine X-ray diffraction B-free B-rich
2012/3/31
This is the first application of Raman spectroscopy to the characterization of the kornerupine
group of borosilicate minerals. Raman microprobe spectra were collected from ~100 to ~4000 cm
from 13 s...
Estimates of mantle relevant Clapeyron slopes in the MgSiO3 system from high-pressure spectroscopic data
MgSiO3 high-pressure spectroscopic data
2012/3/30
ThephasediagramforMgSiO wasestimatedusingtheentropy,enthalpy,thermalex-3
pansivity,andvolumesofallthephases.Entropyatthevarious P-T conditionsinthephase
diagramwasestimatedusingstatisticalthermodyna...
High-pressure single-crystal X-ray diffraction and infrared spectroscopic studies of the C2/m-P21/m phase transition in cummingtonite
High-pressure single-crystal X-ray diffraction spectroscopic studies C2/m-P21/m phase transition cummingtonite
2012/3/31
The structural changes associated with the C 2/ m - P 21/ m phase transition in cumming-tonite with (Fe 1 Mn)/(Fe1 Mn1 Mg) ┆ 0.50 have been studied with single-crystal X-ray diffraction at various pre...
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...
Nuclear Magnetic Resonance and X-ray Photoelectron Spectroscopic Investigation of Lithium Migration in Montmorillonite
Lithium Migration Montmorillonite NMR Spectroscopy X-ray Photoelectron Spectroscopy
2011/12/22
Abstract: When Li-saturated montmorillonite is heated to 200?00 癈, the Li ions migrate from interlayer positions to sites in the layer structure. However, the identity of these sites has not been clea...
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...
Condensation of Olefins on Clays. Gas-Solid Systems. Part II: Spectroscopic Methods
Adsorption Infrared Spectra Interlayer Montmorillonite Olefins Paraffins Polymerization
2011/12/9
Abstract: The adsorption of olefins at 25 °C in gas- or vapor-solid systems on 4 clays dried at 120 °C was studied by infrared spectroscopy. Products of condensation have the spectra of paraffinic oli...
Structural phase transition near 825 K in titanite: Evidence from infrared spectroscopic observations
Structural phase transition 825 K titanite Evidence infrared spectroscopic observations
2012/4/1
We report the direct experimental observation of a structural anomaly near 825 K insynthetic and natural titanite samples by high-temperature, hard-mode infrared spectros-copy. The anomaly in titanite...