Neutron activation analysis of altered oceanic tholeiite: Variation of lanthanide concentrations with degree of alteration

Y. Minai; T. Ishii; Y. Nakamura; H. Wakita; T. Tominaga

doi:10.1007/bf02199259

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 146: Issue 6

Neutron activation analysis of altered oceanic tholeiite: Variation of lanthanide concentrations with degree of alteration

Authors:

Y. Minai

Y. Minai University of Tokyo Department of Chemistry, Faculty of Science Hongo 113 Bunkyo-ku, Tokyo Japan

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T. Ishii

T. Ishii University of Tokyo Ocean Research Institute Minami-dai 164 Nakano-ku, Tokyo Japan

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Y. Nakamura

Y. Nakamura University of Tokyo Laboratory for Earthquake Chemistry, Faculty of Science Hongo 113 Bunkyo-ku, Tokyo Japan

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H. Wakita

H. Wakita University of Tokyo Laboratory for Earthquake Chemistry, Faculty of Science Hongo 113 Bunkyo-ku, Tokyo Japan

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T. Tominaga

T. Tominaga University of Tokyo Department of Chemistry, Faculty of Science Hongo 113 Bunkyo-ku, Tokyo Japan

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Pages:: 375–384

Online Publication Date:: 30 Sep 2005

Publication Date:: 17 Dec 1990

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02199259

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Abstract

Lanthanides in altered oceanic tholeiite were determined by means of instrumental neutron activation analysis. Potassium content was employed as a measure of degree of alteration. Lanthanide concentrations in moderately altered parts of tholeiite (K₂O content below 1%) were identical with those in'unaltered parts while light lanthanide concentrations in more altered parts (K₂O content above 1%) increased with degree of alteration.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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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)