The Tagish Lake Meteorite: A Possible Sample from a D-Type Asteroid

DOI Web Site 被引用文献34件
  • Takahiro Hiroi
    Department of Geological Sciences, Brown University, Providence, RI 02912, USA.
  • Michael E. Zolensky
    Earth Science and Solar System Exploration Division, NASA Johnson Space Center, Houston, TX 77058, USA.
  • Carle M. Pieters
    Department of Geological Sciences, Brown University, Providence, RI 02912, USA.

書誌事項

公開日
2001-09-21
DOI
  • 10.1126/science.1063734
公開者
American Association for the Advancement of Science (AAAS)

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説明

<jats:p>A new type of carbonaceous chondrite, the Tagish Lake meteorite, exhibits a reflectance spectrum similar to spectra observed from the D-type asteroids, which are relatively abundant in the outer solar system beyond the main asteroid belt and have been inferred to be more primitive than any known meteorite. Until the Tagish Lake fall, these asteroids had no analog in the meteorite collections. The Tagish Lake meteorite is a carbon-rich (4 to 5 weight %), aqueously altered carbonaceous chondrite and contains high concentrations of presolar grains and carbonate minerals, which is consistent with the expectation that the D-type asteroids were originally made of primitive materials and did not experience any extensive heating.</jats:p>

収録刊行物

  • Science

    Science 293 (5538), 2234-2236, 2001-09-21

    American Association for the Advancement of Science (AAAS)

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