USRA Houston Repository

Browsing LPI Contributions by Subject "Breccia"

Browsing LPI Contributions by Subject "Breccia"

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  • Apollo 14 revisited, or breccias aren't so bad after all 
    Simonds, Charles H.; Phinney, William C.; Warner, Jeffrey L.; McGee, Patricia E.; Geeslin, Jill; Brown, Roy W.; Rhodes, J. Michael (Pergamon Press, 1977)
    Study of the large Apollo 14 rocks supplemented by petrographic and chemical studies of the previously undescribed comprehensive sample suggests that the Apollo 14 samples were formed by the same processes which operated ...
  • Apollo 15 breccia rake samples-mineralogy of lithic and mineral clasts 
    Steele, Ian M.; Irving, Anthony J.; Smith, Joseph V. (Pergamon Press, 1977)
    The major features of 22 Apollo 15 breccia rake samples are described, and 30 lithic clasts in these samples are classified as KREEP basalts (9), mare basalts (11), or "ANT" (10) based on chemical data for plagioclase, ...
  • Heat flow in impact melts: Apollo 17 Station 6 Boulder and some applications to other breccias and xenolith laden melts 
    Onorato, P. I. K.; Uhlmann, D. R.; Simonds, Charles H. (Pergamon Press, 1976)
    Results of calculations for the cooling of an impact melt sheet are reported for the sheet sampled by the Apollo 17 Station 6 Boulder. The calculations were based on a two-stage cooling model involving a short initial phase ...
  • Impact-induced fractionation in the lunar highlands 
    Warner, Jeffrey L.; Simonds, Charles H.; Phinney, William C. (Pergamon Press, 1974)
    A synthesis of the relevant data concerning lunar highland polymict breccias from the fields of petrography, chemistry, photogeology, and impact studies compels the prediction that the breccias should have homogeneous ...
  • Lithification of vitric - and clastic-matrix breccias: SEM petrography 
    Phinney, William C.; Simonds, Charles H.; McKay, David S.; Warner, Jeffrey L. (Pergamon Press, 1976)
    Matrix textures of 41 lunar breccias ranging from very friable soil clods through coherent microbreccias and tough vitric breccias to tough, fine-grained crystalline breccias were examined petrographically by means of the ...
  • Magnetic properties and granulometry of metallic iron in lunar breccia 14313 
    Dunlop, D. J.; Gose, W. A.; Pearce, G. W.; Strangway, David W. (Pergamon Press, 1973)
    Based on a detailed study of time-dependent or viscous remanence (VRM), thermoremanence (TRM) and magnetic granulometry of soil breccia 14313, single-domain particles of iron 100-200 Å in size are proposed as the major ...
  • Magnetic properties of Apollo 14 breccias and their correlation with metamorphism 
    Gose, W. A.; Pearce, G. W.; Strangway, David W.; Larson, E. E. (Pergamon Press, 1972)
    The magnetic properties of Apollo 14 breccias can be explained in terms of the grain size distribution of the interstitial iron which is directly related to the metamorphic grade of the sample.

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