Experiment “Tsarev” and Differentiation of Chondritic Bodies

  • J. I. Zetzer
  • A. V. Vityazev
Conference paper

Abstract

As a check on the differentiation processes of planetesimals the experiment “Tsarev” was carried out. The main problems of the experiment were: investigation of melting and liquation processes in the melt of primitive meteorite substance; analysis of the composition of metallic and silicate phases, including the distribution of rare-earth elements and comparison of the obtained phase with iron and differentiated meteorite composition. The heating of a sample of the L-chondrite “Tsarev” (volume 15 cm3) was produced by intensive microwave radiation because this method of heating provides the possibility of uncontact entry of energy into a sufficiently large sample. Upon the heating of the meteorite “Tsarev” (with the maximum temperature 1500 ± 50°K) this sample was melted and two phases appeared and were separated in the gravity field: the composition of Fe-Ni-S phase includes 15 rare-earth elements and the silicate phase is composed of the main oxides. There is also clear evidence for the presence of liquation processes of second order, e.g. separation of Fe-Ni from Fe-S component.

Keywords

Microwave Radiation Gravity Field Silicate Phase Laser Interferometer Iron Meteorite 
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References

  1. Vityazev, A.V., Pechernikova, G.V. and Safronov, V.S. 1990, Terrestrial Planets: Their Origin and Early Evolution. Nauka, Moscow.Google Scholar
  2. Dreibus, G. and Wanke, H. 1990, Comparison of the chemistry of Moon and Mars. Adv. Space Res. 10, (3)7 - (3)16.CrossRefADSGoogle Scholar
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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • J. I. Zetzer
    • 1
  • A. V. Vityazev
    • 2
  1. 1.Institute of Dynamics of GeospheresRussian Academy of SciencesMoscowRussia
  2. 2.Institute of Planetary Geophysics United Institute of Earth PhysicsRussian Academy of SciencesMoscowRussia

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