搜索结果: 1-15 共查到“知识库 地质学 Optical”相关记录22条 . 查询时间(0.07 秒)
SIMULATION AND OPTIMISATION OF AN OF OPTICAL REMOTE SENSING SYSTEM FOR MONITORING THE EUROPEAN GAS PIPELINE NETWORK
monitoring pipelines hazards high resolution weather simulation performance
2015/7/30
In Europe an extensive network of high-pressure gas pipelines exists, which needs to be monitored frequently in order to guarantee
the safety. Currently two weekly monitoring takes place by foot, veh...
Optical and geochemical characterization of Upper Sinemurian (Lower Jurassic) fossil wood from the Lusitanian Basin (Portugal)
fossil wood carbon and nitrogen stable isotopes Sinemurian Lusitanian Basin Portugal
2017/4/11
It is hypothesized that carbon and nitrogen isotopic compositions (δ13C and δ15N) of fossil wood fragments will
provide useful information regarding conditions prior, during, and after deposition. El...
Shock-compressed MgSiO3 glass, enstatite, olivine, and quartz: Optical emission, temperatures, and melting
enstatite olivine quartz
2014/4/8
Optical emission of MgSiO3 glass, enstatite, olivine, and quartz under shock wave
compression was investigated with optical pyrometry at discrete wavelengths ranging
from visible to near infrared. W...
Relationship between nanostructure and optical absorption in fibrous pink opals from Mexico and Peru
opal optical absorption nanostructure Raman palygorskite TEM
2011/11/11
Translucent pink opals from Mexico (states of Mapimi and Michoacan) and Peru (Acari area, near Arequipa) are opal-
CT, containing from 10 to 40 % palygorskite, as demonstrated by XRD, infrared absorp...
Optical band gaps of selected ternary sulfide minerals
Optical band gaps ternary sulfide minerals
2012/4/1
Optical band gaps for a set of 23 ternary and quaternary sulfide minerals have been measured by diffuse reflectance spectroscopy. Comparison of band gaps measured by dif-fuse reflectance with band gap...
Crystal-growth studies of natural gas clathrate hydrates using a pressurized optical cel
Crystal-growth natural gas clathrate hydrates pressurized optical cel
2012/4/1
The crystal-growth behavior of structure I (sl), structure II (sll), and structure H (sH)
clathrate hydrates has been studied using a specially designed, pressurized optical cell,
Single crystals of...
Thermal Transformation of Talc as Studied by Electron-Optical Methods
Enstatite Morphology Selected-area electron diffraction Talc Thermal transformation Topotactic relation Transmission electron microscopy
2012/1/9
The thermal decomposition of a fibrous talc was studied by transmission electron microscopy (TEM) and selected-area electron diffraction (SAD). Small changes in the lengths of a and b unit-cell parame...
Optical Density of Vertisol Clay Suspensions in Relation to Sediment Volumes and Dithionite-Citrate-Bicarbonate-Extractable Iron
Beidellite Extractable Fe Fabric Optical density Tactoid Vertisol
2012/1/11
Clay fractions of eight vertisols and vertisolic soils from Israel were found to consist principally of a Fe-rich beidellite. Sediment volumes of Na-clay suspensions, obtained in measuring cylinders a...
Noncentric Layer Silicates: An Optical Second Harmonic Generation, Chemical, and X-ray Study
Acentricity Chlorite Electron microprobe Lithium Mica Second harmonic generation X-ray diffraction
2012/2/7
Twenty-nine chlorites, seventeen lithium-free micas, and twenty-two lithium-bearing micas from diverse localities have been studied by X-ray diffraction, microprobe, and optical second harmonic genera...
Thermal Transformation of Antigorite as Studied by Electron-Optical Methods
Antigorite Asbestos Chrysotile Forsterite Lattice image Selected area electron diffraction Serpentine Topotactic structure
2012/2/7
The thermal transformation of a Brazilian antigorite heated dry from 600∑ to 1300∑C was studied by high resolution electron microscopy and selected area electron diffraction (SAD). Below 600∑C, the an...
Electron-Optical Investigations on Montmorillonites—II: Morphological Variations in the Intermediate Members of the Montmorillonite-Beidellite Series
Electron-Optical Investigations Montmorillonites Morphological Variations Montmorillonite-Beidellite Series
2012/2/13
Dioctahedral aluminum smectites from bentonite deposits in Argentina, Brazil, Czechoslovakia and Japan represent, according to the MgO content of the bulk samples, intermediate members in the montmori...
Electron-Optical Investigations on Montmorillonites桰. Cheto, Camp-Berteaux and Wyoming Montmorillonites
Electron-Optical Investigations Montmorillonites Wyoming Montmorillonites
2012/2/15
Other layer silicates are consistently present as impurities in natural montmorillonite samples. They have a distinctly different morphology from the common montmorillonite particles. The selected are...
The Nature of Garnierites—II Electron-Optical Study
Nature of Garnierites Electron-Optical Study
2011/11/18
Abstract: Electron micrographs of 7 Å-type and 10 Å-type garnierites have been recorded at 5·104–105X magnifications to show the morphological character of these minerals, and at 106X magn...
OPTICAL ABSORPTION SPECTRA OF CLAY MINERALS
OPTICAL ABSORPTION SPECTRA CLAY MINERALS Attapulgite
2011/11/16
preliminary survey of electronic absorption spectra of clay minerals reveals the utility of u.v.-visible spectroscopy in the elucidation of structural, physical, and chemical properties of such system...
X-Ray Diffraction and Electron Optical Studies on Smectite and α-Cristobalite Associations
X-Ray Diffraction Electron Optical Study Smectite α-Cristobalite Associations
2012/2/15
Alteration products of volcanic materials from various localities in Wyoming, U.S.A., Italy, Yugoslavia and Mozambique are mainly smectites and cristobalites with small amounts of kaolinite.Smectite a...