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

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

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

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

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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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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)