Journal of Radioanalytical and Nuclear Chemistry

, Volume 114, Issue 2, pp 329–335 | Cite as

Identification of the origin of silicate, magnetic and glass spherules from trace elemental abundances by INAA

  • S. L. Ma
  • C. F. Chai
  • X. Y. Mao
  • H. C. Peng
  • K. Lu
  • X. Y. Xiao
  • Z. Y. Ouyang
Geochemistry

Abstract

Chemical elemental compositions of some silicate, magnetic and glass spherules were investigated with INAA. The elements determined include Os, Ir, Ni, Co, Fe, Cr, Au, La, Ce, Sm, Eu, Yb, Lu and Sc etc. The elemental correlation, as well as their enrichment (or depletion) factors relative to Cl chondrite were examined. The high concentrations of the refractory siderophile elements contained in these spherules support the proposal that they originate from extraterrestrial substances. Some useful chemical criteria for identifying the sources of silicate, magnetic and glass spherules are put forward.

Keywords

Physical Chemistry Silicate Inorganic Chemistry Elemental Composition INAA 

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Copyright information

© Akadémiai Kiadó 1987

Authors and Affiliations

  • S. L. Ma
    • 1
  • C. F. Chai
    • 1
  • X. Y. Mao
    • 1
  • H. C. Peng
    • 2
  • K. Lu
    • 2
  • X. Y. Xiao
    • 3
  • Z. Y. Ouyang
    • 3
  1. 1.Institute of High Energy PhysicsAcademia SinicaBeijing(China)
  2. 2.National Bureau of OceanographyFirst Institute of Oceanography(China)
  3. 3.Institute of GeochemistryAcademia SinicaGuiyang(China)

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