A New Allotropic Form of Carbon from the Ries Crater

DOI Web Site 被引用文献8件
  • A. El Goresy
    Geophysical Laboratory, Carnegie Institution of Washington, Washington, D.C. 20008
  • G. Donnay
    Geophysical Laboratory, Carnegie Institution of Washington, Washington, D.C. 20008

書誌事項

公開日
1968-07-26
DOI
  • 10.1126/science.161.3839.363
公開者
American Association for the Advancement of Science (AAAS)

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説明

<jats:p>A new allotropic form of carbon occurs in shock-fused graphite gneisses in the Ries Crater, Bavaria. The assemblage in which it occurs consists of hexagonal graphite, rutile, pseudobrookite, magnetite, nickeliferous pyrrhotite, and baddeleyite. Electron-probe analyses indicate that the new phase is pure carbon. It is opaque and much more strongly reflecting than hexagonal graphite. Measurement of x-ray diffraction powder patterns leads to cell dimensions a = 8.948 ± 0.009, c = 14.078 ± 0.017 angstroms, with a primitive hexagonal lattice.</jats:p>

収録刊行物

  • Science

    Science 161 (3839), 363-364, 1968-07-26

    American Association for the Advancement of Science (AAAS)

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