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      Spectral reflectance characteristics of the meteorite classes

      Journal of Geophysical Research
      American Geophysical Union (AGU)

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          A chemical-petrologic classification for the chondritic meteorites

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            Origin, age, and composition of meteorites

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              Asteroid vesta: spectral reflectivity and compositional implications.

              The spectral reflectivity (0.30 to 1.10 microns) of several asteroids has been measured for the first time. The reflection spectrum for Vesta contains a strong absorption band centered near 0.9 micron and a weaker absorption feature between 0.5 and 0.6 micron. The reflectivity decreases strongly in the ultraviolet. The reflection spectrum for the asteroid Pallas and probably for Ceres does not contain the 0.9-micron band. Vesta shows the strongest and best-defined absorption bands yet seen in the reflection spectrum for the solid surface of an object in the solar system. The strong 0.9-micron band arises from electronic absorptions in ferrous iron on the M2 site of a magnesian pyroxene. Comparison with laboratory measurements on meteorites and Apollo 11 samples indicates that the surface of Vesta has a composition very similar to that of certain basaltic achondrites.
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                Author and article information

                Journal
                Journal of Geophysical Research
                J. Geophys. Res.
                American Geophysical Union (AGU)
                01480227
                February 10 1976
                February 10 1976
                : 81
                : 5
                : 905-920
                Article
                10.1029/JB081i005p00905
                da7b8c45-6b63-4aa0-849b-277b9bf7ad0b
                © 1976

                http://doi.wiley.com/10.1002/tdm_license_1.1

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