Authors:
Y. Kikawada Sophia University 7-1 Kioicho Department of Chemistry Chiyodaku Tokyo 102-8554 Japan

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M. Uruga Sophia University 7-1 Kioicho Department of Chemistry Chiyodaku Tokyo 102-8554 Japan

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T. Oi Sophia University 7-1 Kioicho Department of Chemistry Chiyodaku Tokyo 102-8554 Japan

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T. Honda Musashi Institute of Technology 971 Ozenji Atomic Energy Research Laboratory Asaoku, Kawasaki Kanagawa 215-0013 Japan

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Abstract  

Concentration of lanthanides (Lns) in alunite group mineral samples from the Kusatsu-Shirane volcano area, Gunma, Japan, were determined by neutron activation analysis. Their Ln abundance patterns showed enrichment of light Lns relative to their original rocks and GSJ geochemical reference samples of feldspars. It was found that the concentration of light Lns increased with increasing concentration of K and P. The positive correlation between the light Lns and P concentration suggested the formation of florencite, whereas the positive correlation between the concentration of light Lns and K may reflect the difference between the solubility of double salts of K and Ln sulfates of light Lns and heavy Lns, respectively.

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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)