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Cathodoluminescence (CL), the emission of visible light during electron bombardment, was first used in sandstone petrology in the mid1960''s. CL techniques are especially useful for determining the origin and source of quartz and feldspar, two of the most common constituents in clastic rocks. CL properties of both minerals are dependent on their temperature of crystallization, duration of
Cathodoluminescence (CL) analyses were carried out on maskelynite and lingunite in L6 chondrites of Tenham and Yamato790729. Under CL microscopy, bright blue emission was observed in Nalingunite in the shock veins. Dull blueemitting maskelynite is adjacent to the shock veins, and aqua blue luminescent plagioclase lies farther away.
Cathodoluminescence (CL) spectra of unirradiated, He+ ionimplanted and electronirradiated plagioclase minerals contain the following emission bands: (1) below 300 nm due to Pb2+, (2) at ~320 and ~350 nm to Ce3+, (3) at 380420 nm to Eu2+, Ti4+ and/or AlOAl/Ti defects, (4) at 560580 nm to Mn2+ and (5) at 720760 nm to Fe3+. During the implantation of He+ ion, much of their
Abstract A collection of 42 feldspar mineral samples from a wide geographical range of North America was examined by coldcathode cathodoluminescence (CL) spectroscopy. Characteristic wavelength peaks, which were determined to be independent of geographic origin, were associated with each feldspar phase. Most of these peaks were attributed to previously assigned Mn 2+ and Fe 3+
The syenite and related rocks show various types of petrographic textures in response to the process of hydrothermal alteration,, feldspar minerals. We have conducted to clarify the feldspar with a variety of metasomatic alteration in the granitesy enite by using cathodoluminescence (CL)
We have studied feldspar from crystalline rocks for its textural and spectral cathodoluminescence (CL) characteristics with the aim to reveal their provenance potential. We analyzed ca. 60 rock samples of plutonic, volcanic, metamorphic, and pegmatitic origin from different continents and of 16 Ma to 2 Ga age for their feldspar CL textures and ca. 1200 feldspar crystals from these rocks for
Cathodoluminescence (CL), the emission of visible light during electron bombardment, was first used in sandstone petrology in the mid1960''s. CL techniques are especially useful for determining the origin and source of quartz and feldspar, two of the most common constituents in clastic rocks. CL properties of both minerals are dependent on their temperature of crystallization, duration of
Cathodoluminescence (CL) of minerals such as quartz and zircon has been extensively studied to be used as an indicator for geodosimetry and geochronometry. There are, however, very few investigations on CL of other rockforming minerals such as feldspars, regardless of their great scientific interest.
Can cathodoluminescence of feldspar be used as provenance indicator? Article in Sedimentary Geology 336 #183; November 2015 with 221 Reads How we measure ''reads''
Accordingly the CL spectral deconvolution for alkali feldspar proposed in this study can be used as a novel and quantitative shock barometer for a wide range of pressures ( GPa) with high spatial resolution (1 m), even though the details of mineralogical features such as chemical composition and structure are not known, implying an application of the shock estimation for an alkali
In particular, the luminescence of dislocated silicon is different from intrinsic silicon, and can be used to map defects in integrated circuits. Recently, cathodoluminescence performed in electron microscopes is also being used to study surface plasmon resonances in metallic nanoparticles.
Main content area. Can cathodoluminescence of feldspar be used as provenance indicator? Author:
Cathodoluminescence characterization of feldspar minerals from granitesyenite rocks in Iwagijima Island, Ehime Prefecture, Japan Seiya MAKI1, Syuhei OHGO1 and Hirotsugu NISHIDO1 Abstract: In Iwagijima Island, aegirine syenite was emplaced in the Ryoke granite during late Cre
Cathodoluminescence is an optical and electromagnetic phenomenon in which electrons impacting on a luminescent material such as a phosphor, cause the emission of photons which may have wavelengths in the visible familiar example is the generation of light by an electron beam scanning the phosphorcoated inner surface of the screen of a television that uses a cathode ray tube.
Cathodoluminescence emission can be used to explore many fundamental properties of matter. It can be used to study light transport, scattering, electronic structure of a material, resonant phenomena and much more. It thus presents a valuable source of information for fundamental research as well as applied research with a direct link to industry.
Cathodoluminescence (CL) of minerals such as quartz and zircon has been extensively studied to be used as an indicator for geodosimetry and geochronometry. There are, however, very few investigations on CL of other rockforming minerals such as feldspars, regardless of their great scientific interest.
Cathodoluminescence (CL) analyses were carried out on maskelynite and lingunite in L6 chondrites of Tenham and Yamato790729. The UVblue emissions of shockrecovered feldspars and the diaplectic feldspar glasses show a good correlation between intensity and shock pressure after deconvolution.
#0183;#32;1. Introduction. Feldspar has been used as a provenance indicator for over fifty years (, Pittman, 1963, Trevena and Nash, 1981, Parsons et al., 2005).Nevertheless, provenance studies commonly rely on the quantitative light and heavymineral petrographic, the wholerock chemical, and/or the elementchemical and isotopic composition of individual, stable mineral phases such as zircon (e
#0183;#32;The use of spectrophotometer permits a semiquantitative view of the causes and amounts of CL. These can be related to intrinsic defects or extrinsic activators, but the magnitude of the signal has not been quantified. The spectral resolution can be considerably improved by using a
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