Cathodoluminescence microscopy and spectroscopy of forsterite from Kaba meteorite: An application to the study of hydrothermal alteration of parent body

Arnold Gucsik, Taro Endo, Hirotsugu Nishido, Kiyotaka Ninagawa, Masahiro Kayama, Szaniszló Bérczi, Szabolcs Nagy, P. Ábrahám, Yuki Kimura, Hitoshi Miura, Ildikó Gyollai, Irakli Simonia, Péter Rózsa, J. Posta, Dániel Apai, Krisztián Mihályi, Mihály Nagy, U. Ott

Research output: Article

8 Citations (Scopus)

Abstract

Highly forsteritic olivine (Fo: 99.2-99.7) in the Kaba meteorite emits bright cathodoluminescence (CL). CL spectra of red luminescent forsterite grains have two broad emission bands at approximately 630 nm (impurity center of divalent Mn ions) in the red region and above 700 nm (trivalent Cr ions) in the red-IR region. The cores of the grains show CL blue luminescence giving a characteristic broad band emission at 400 nm, also associated with minor red emissions related to Mn and Cr ions. CL color variation of Kaba forsterite is attributed to structural defects. Electron probe microanalyzer (EPMA) analysis shows concentrations of Ca, Al, and Ti in the center of the forsterite grain. The migration of diffusible ions of Mn, Cr, and Fe to the rim of the Kaba meteoritic forsterite was controlled by the hydrothermal alteration at relatively low temperature (estimated at about 250 °C), while Ca and Al ions might still lie in the core. A very unusual phase of FeO (wüstite) was also observed, which may be a terrestrial alteration product of FeNi-metal.

Original languageEnglish
Pages (from-to)2577-2596
Number of pages20
JournalMeteoritics and Planetary Science
Volume48
Issue number12
DOIs
Publication statusPublished - dec. 2013

Fingerprint

forsterite
cathodoluminescence
parent body
meteorites
hydrothermal alteration
meteorite
microscopy
spectroscopy
ion
ions
trivalent ions
electron probes
rims
olivine
luminescence
electron probe analysis
defect
broadband
color
impurities

ASJC Scopus subject areas

  • Geophysics
  • Space and Planetary Science

Cite this

Cathodoluminescence microscopy and spectroscopy of forsterite from Kaba meteorite : An application to the study of hydrothermal alteration of parent body. / Gucsik, Arnold; Endo, Taro; Nishido, Hirotsugu; Ninagawa, Kiyotaka; Kayama, Masahiro; Bérczi, Szaniszló; Nagy, Szabolcs; Ábrahám, P.; Kimura, Yuki; Miura, Hitoshi; Gyollai, Ildikó; Simonia, Irakli; Rózsa, Péter; Posta, J.; Apai, Dániel; Mihályi, Krisztián; Nagy, Mihály; Ott, U.

In: Meteoritics and Planetary Science, Vol. 48, No. 12, 12.2013, p. 2577-2596.

Research output: Article

Gucsik, A, Endo, T, Nishido, H, Ninagawa, K, Kayama, M, Bérczi, S, Nagy, S, Ábrahám, P, Kimura, Y, Miura, H, Gyollai, I, Simonia, I, Rózsa, P, Posta, J, Apai, D, Mihályi, K, Nagy, M & Ott, U 2013, 'Cathodoluminescence microscopy and spectroscopy of forsterite from Kaba meteorite: An application to the study of hydrothermal alteration of parent body', Meteoritics and Planetary Science, vol. 48, no. 12, pp. 2577-2596. https://doi.org/10.1111/maps.12238
Gucsik, Arnold ; Endo, Taro ; Nishido, Hirotsugu ; Ninagawa, Kiyotaka ; Kayama, Masahiro ; Bérczi, Szaniszló ; Nagy, Szabolcs ; Ábrahám, P. ; Kimura, Yuki ; Miura, Hitoshi ; Gyollai, Ildikó ; Simonia, Irakli ; Rózsa, Péter ; Posta, J. ; Apai, Dániel ; Mihályi, Krisztián ; Nagy, Mihály ; Ott, U. / Cathodoluminescence microscopy and spectroscopy of forsterite from Kaba meteorite : An application to the study of hydrothermal alteration of parent body. In: Meteoritics and Planetary Science. 2013 ; Vol. 48, No. 12. pp. 2577-2596.
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abstract = "Highly forsteritic olivine (Fo: 99.2-99.7) in the Kaba meteorite emits bright cathodoluminescence (CL). CL spectra of red luminescent forsterite grains have two broad emission bands at approximately 630 nm (impurity center of divalent Mn ions) in the red region and above 700 nm (trivalent Cr ions) in the red-IR region. The cores of the grains show CL blue luminescence giving a characteristic broad band emission at 400 nm, also associated with minor red emissions related to Mn and Cr ions. CL color variation of Kaba forsterite is attributed to structural defects. Electron probe microanalyzer (EPMA) analysis shows concentrations of Ca, Al, and Ti in the center of the forsterite grain. The migration of diffusible ions of Mn, Cr, and Fe to the rim of the Kaba meteoritic forsterite was controlled by the hydrothermal alteration at relatively low temperature (estimated at about 250 °C), while Ca and Al ions might still lie in the core. A very unusual phase of FeO (w{\"u}stite) was also observed, which may be a terrestrial alteration product of FeNi-metal.",
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