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Petrographic analysis using cathodoluminescence microscopy with simultaneous energy-dispersive X-ray spectroscopy.

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Title: Petrographic analysis using cathodoluminescence microscopy with simultaneous energy-dispersive X-ray spectroscopy.
Authors: Vortisch, W.1 Walter.Vortisch@unileoben.ac.at, Harding, D.2 sales@citl.com, Morgan, J.2 sales@citl.com
Source: Mineralogy & Petrology. Dec2003, Vol. 79 Issue 3/4, p193-202. 10p. 2 Color Photographs, 3 Black and White Photographs, 3 Graphs.
Subjects: Minerals, Petrology, Cathodoluminescence, Luminescence, Polarizing microscopes, Spectrum analysis
Abstract: Summary ¶Mineral grains unidentifiable by means of cathodoluminescence (CL) and/or polarizing microscopy (including non-luminescent or opaque minerals) can be readily identified with energy dispersive X-ray spectrometry, attached to the CL equipment. Chemical identification is possible of mineral grains (ten to a few tens of microns) that are even smaller than the electron beam area, by using index elements if the unknown mineral analyzed is surrounded by grains of simple or known chemical composition (e.g. minute areas of carbonate cement surrounded by quartz or clay minerals; clay cements surrounded by quartz or carbonate) and simultaneous with CL microscopy. Results are presented of Cambrian, Carboniferous and Jurassic sandstones from Sweden and Germany. Transparent and opaque minerals, i.a. feldspars, luminescent and non-luminescent carbonate minerals as well as luminescent and non-luminescent clay minerals were identified in thin sections. The analytical procedure described here is especially helpful when rapid petrographic analysis has to be carried out of samples with complex composition, of which the petrographer had no previous experience. [ABSTRACT FROM AUTHOR]
Copyright of Mineralogy & Petrology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Petrographic analysis using cathodoluminescence microscopy with simultaneous energy-dispersive X-ray spectroscopy.
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  Data: <searchLink fieldCode="AR" term="%22Vortisch%2C+W%2E%22">Vortisch, W.</searchLink><relatesTo>1</relatesTo><i> Walter.Vortisch@unileoben.ac.at</i><br /><searchLink fieldCode="AR" term="%22Harding%2C+D%2E%22">Harding, D.</searchLink><relatesTo>2</relatesTo><i> sales@citl.com</i><br /><searchLink fieldCode="AR" term="%22Morgan%2C+J%2E%22">Morgan, J.</searchLink><relatesTo>2</relatesTo><i> sales@citl.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Mineralogy+%26+Petrology%22">Mineralogy & Petrology</searchLink>. Dec2003, Vol. 79 Issue 3/4, p193-202. 10p. 2 Color Photographs, 3 Black and White Photographs, 3 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Minerals%22">Minerals</searchLink><br /><searchLink fieldCode="DE" term="%22Petrology%22">Petrology</searchLink><br /><searchLink fieldCode="DE" term="%22Cathodoluminescence%22">Cathodoluminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Luminescence%22">Luminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Polarizing+microscopes%22">Polarizing microscopes</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrum+analysis%22">Spectrum analysis</searchLink>
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  Data: Summary ¶Mineral grains unidentifiable by means of cathodoluminescence (CL) and/or polarizing microscopy (including non-luminescent or opaque minerals) can be readily identified with energy dispersive X-ray spectrometry, attached to the CL equipment. Chemical identification is possible of mineral grains (ten to a few tens of microns) that are even smaller than the electron beam area, by using index elements if the unknown mineral analyzed is surrounded by grains of simple or known chemical composition (e.g. minute areas of carbonate cement surrounded by quartz or clay minerals; clay cements surrounded by quartz or carbonate) and simultaneous with CL microscopy. Results are presented of Cambrian, Carboniferous and Jurassic sandstones from Sweden and Germany. Transparent and opaque minerals, i.a. feldspars, luminescent and non-luminescent carbonate minerals as well as luminescent and non-luminescent clay minerals were identified in thin sections. The analytical procedure described here is especially helpful when rapid petrographic analysis has to be carried out of samples with complex composition, of which the petrographer had no previous experience. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Mineralogy & Petrology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Cathodoluminescence
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      – SubjectFull: Polarizing microscopes
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              Text: Dec2003
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