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Major element analysis of selected rock and volcanic ash samples in the Unzen area, Japan, by X-ray fluorescence spectroscopy

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Abstract

Determination of major elements in natural solid samples by X-ray fluorescence spectroscopy (XRF) with a fusion disc technique is described. Data obtained by the present XRF analytical system were found to have satisfactorily high reliability. Five rock samples and a volcanic ash sample with varying ages ranging from the present to 180 000 years, derived by the current and past volcanic activities in the Unzen area, Nagasaki, Japan were analyzed for their major elements' compositions using the above mentioned system. The chemical composition of the magma under this area has changed very little at least over the last 180 000 years.

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Authors and Affiliations

  1. Department of Chemistry, Sophia University, 7-1 Kioicho, Chiyodaku, 102, Tokyo, (Japan)

    T. Ossaka, K. Kakegawa, T. Oi & M. Mukaida

Authors
  1. T. Ossaka
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  2. K. Kakegawa
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  3. T. Oi
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  4. M. Mukaida
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Ossaka, T., Kakegawa, K., Oi, T. et al. Major element analysis of selected rock and volcanic ash samples in the Unzen area, Japan, by X-ray fluorescence spectroscopy. Journal of Radioanalytical and Nuclear Chemistry, Articles 183, 235–244 (1994). https://doi.org/10.1007/BF02037993

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  • DOI: https://doi.org/10.1007/BF02037993

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