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Chemical and Isotopic Compositions of Refractory Elements in Deep Sea Spherules

Published online by Cambridge University Press:  12 April 2016

Kazuo Yamakoshi  and
Koichi Honma
Kazuo Yamakoshi
Affiliation:
Institute for Cosmic Ray Research, University of Tokyo, Tanashi Tokyo 188, Japan
Koichi Honma
Affiliation:
Institute for Cosmic Ray Research, University of Tokyo, Tanashi Tokyo 188, Japan

Abstract

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In order to study the inhomogeneity of the solar materials at the initial state, the enrichment factors and isotopic anomalies of refractory elements in deep sea spherules relative to the average solar abundance were examined using instrumental neutron activation analysis. Fairly high enrichment factors and isotopic anomalies of refractory elements were observed in several spherules, however, after the ablation process of the spherules during the atmospheric heatings they were not inconsistent with those of normal values in the solar system.

Type
III. Interplanetary Dust: Laboratory Studies
Information
International Astronomical Union Colloquium , Volume 85: Properties and Interactions of Interplanetary Dust , 1985 , pp. 175 - 178
Copyright
Copyright © Reidel 1985

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