JavaScript requeired.
Geochemical Journal
Geochemical Journal An open access journal for geochemistry
subscription
Published for geochemistry community from Geochemical Society of Japan.

Chemical compositions of magnetic, stony spherules from deep-sea sediments determined by instrumental neutron activation analysis

Kazuo Yamakoshi
Geochemical Journal, Vol. 18, No. 3, P. 147-152, 1984

ABSTRACT

Chemical compositions of magnetic, stony spherules from deep sea sediments were determined by instrumental neutron activation analysis. High Ir, Au, Ni and Co contents indicate their extraterrestrial origin. The obtained compositions are considerably different from those of chondrites. It can be qualitatively interpreted, however, that cosmic matters having the compositions of chondrites are changed into magnetic, stony spherules by thermal degenerations during their atmospheric entry.

All Issues

Current Issue:
Stats:
Impact Factor: 1.0 (2023)
Submission to final decision: 9.6 weeks (2022)
Geochemical Society of Japan

page top