USRA Houston Repository

Browsing LPI Contributions by Author "Fruland, Ruth M."

Browsing LPI Contributions by Author "Fruland, Ruth M."

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  • Clast-laden nature and the origin of Luna 24 olivine-vitrophyres 
    Basu, Abhijit; McKay, David S.; Fruland, Ruth M. (Pergamon Press, 1978)
    Particles of olivine-vitrophyre make up less than one percent of the <250 μm fraction of the Luna 24 soils. They contain microphenocrysts of olivine and spinel, together with a variety of olivine, pyroxene, plagioclase, a ...
  • Long-term differential energy spectrum for solar-flare iron-group particles 
    Blanford, G. E.; Fruland, Ruth M.; Morrison, Donald A. (Pergamon Press, 1975)
    Track density profile measurements in sample 64455 and sample 68815 have been used to derive a long-term solar-flare differential energy spectrum for iron-group (20 ~ Z ~ 26) nuclei from --0.1 to --600 MeV/a.m.u.
  • Origin and modal petrography of Luna 24 soils 
    Basu, Abhijit; McKay, David S.; Fruland, Ruth M. (Pergamon Press, 1978)
    We have analyzed 6 Luna 24 soils for major and trace elements by We have performed detailed petrographic modal analyses of polished grain mounts of four sieve fractions in the size range of 20 μm to 250 μm for each of the ...

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