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Lunar and Planetary Institute

Lunar and Planetary Institute

 

The Lunar and Planetary Institute is a research institute that provides support services to NASA and the planetary science community, and conducts planetary science research under the leadership of staff scientists, visiting researchers, and postdoctoral fellows.

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Recent Submissions

  • 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.
  • Zinner, E.; Walker, R. M. (Pergamon Press, 1975)
    The ion microprobe at the Johnson Space Center was used to study depth profiles of artificially implanted ions in lunar samples. Five polished sections of typical mare basalts (12040 and 12018) were irradiated with nine ...
  • Warner, Jeffrey L.; Simonds, Charles H.; Phinney, William C (Pergamon Press, 1976)
    This is a petrologic report on sample 76255 from the Apollo 17 Station 6 boulder, the matrix of which yields a crystallization age of 3.98 AE.
  • Solomon, Sean C. (Pergamon Press, 1975)
    In this paper, simple hydrostatic concepts are extended to synthesize results from experimental petrology, lunar chronology, thermal history models, seismology, and gravity. Explanations of several heretofore unrelated ...
  • Pepin, R. O. (Robert Osborne), 1933-; Dragon, J. C.; Johnson, N. L.; Bates, A.; Coscio, M. R., Jr.; Murthy , V. R. (Pergamon Press, 1975)
    Correlation techniques are applied to rare gas abundance and isotopic measurements, and measured and inferred target element concentrations in grain-sized separates of ten soil samples from the Apollo 17 deep drill core, ...
  • Lofgren, Gary E.; Donaldson, C. H.; Usselman, Thomas M. (Pergamon Press, 1975)
    The quartz-normative (QN) basalts collected at the Apollo 15 site have a unique and consistent bulk chemistry, but display a systematic variation in phenocryst morphology and matrix texture. Experimental crystallization ...
  • Hörz, Friedrich, 1940-; Schneider, Eberhard; Hill, Richard E. (Pergamon Press, 1974)
    A Monte Carlo computer model was developed to simulate impact histories and erosion by single particle abrasion of lunar rock surfaces. Microcrater frequencies derived from lunar rocks were used to calculate magnitude and ...
  • McCoy, James E.; Criswell, David R. (Pergamon Press, 1974)
    This paper will present evidence from Apollo lunar orbital observations, indicating the existence of solar light scattering from a significant population of lunar particulates extending to altitudes in excess of 100 km. ...
  • Runcorn, S. K. (Pergamon Press, 1974)
    The discovery of positive gravity anomalies over the circular maria by Muller and Sjogren (1968) has been one of the most discussed results of the Apollo lunar exploration program. That the contours of the gravitational ...
  • Lindsay, John F. (John Francis), 1941-2008 (Elsevier, 1976)
    There are essentially three parts to the book. Chapter 1 presents a very brief view of the moon as a planetary body to establish a perspective for the following chapters. Chapters 2 and 3 evaluate the energy sources available ...
  • Taylor, Stuart Ross, 1925-; Jakeš, Petr (Pergamon Press, 1974)
    In this paper we consider the evidence for and the implications of homogeneous accretion of the moon. Inter-element ratios are used to calculate the composition of the highland crust.
  • Lindsay, John F. (John Francis), 1941-2008 (Pergamon Press, 1974)
    Four dimensional cluster analysis of the grain size parameters (mean, standard deviation, skewness, and kurtosis) of 125 lunar soils from the Apollo 15, 16, and 17 sites has provided a basis for the construction of a general ...
  • Simonds, Charles H.; Phinney, William C.; Warner, Jeffrey L. (Pergamon Press, 1974)
    The Apollo 17 non-mare rock collection consists largely of polymict breccias lithified by impact. These rocks are characterized by a variety of types of lithic clasts, concentrations of siderophile elements that indicate ...
  • Lofgren, Gary E.; Donaldson, Colin H.; Williams, Richard J.; Mullins, Jr., Oscar; Usselman, Thomas M. (Pergamon Press, 1974)
    An analog of the Apollo 15 quartz-normative basalts (also called pyroxene-phyric basalts) has been experimentally crystallized at a variety of linear cooling rates between 1250 and 1°C/hr at one atmosphere total pressure ...
  • Fryxell, Roald; Heiken, Grant (Pergamon Press, 1974)
    Core samples collected from the lunar regolith have been almost entirely incoherent and loose in consistence. Most have been transported to earth with original features of stratigraphy intact, and disturbance by the sampling ...
  • Manka, R. H.; Michel, F. C. (Pergamon Press, 1973)
    In this paper we discuss several new aspects of the acceleration of ions formed in the lunar atmosphere. In particular we will look at the predicted and observed energy spectrum of the ions, the lunar surface potential ...
  • Neukum, Gerhard; Hörz, Friedrich, 1940-; Morrison, Donald A.; Hartung, Jack B. (Pergamon Press, 1973)
    Approximately 10,000 microcraters were investigated using binocular microscope techniques on fifteen Apollo 16 rocks: "crystalline" rocks 60315, 60335, 61156, 62235, 62295, and 68415; "breccias" 60016, 61015, 61175, 66075, ...
  • Arkani-Hamed, Jafar (Pergamon Press, 1973)
    A new mascon hypothesis is proposed which accounts for: (1) the existence of lunar mascons for more than 3 b.y., (2) the evidence for extensive volcanic activity from 3.7 to 3.2 b.y. ago, (3) the existence of negative ...
  • Dunlop, D. J.; Gose, W. A.; Pearce, G. W.; Strangway, D. 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 ...
  • Warner, Jeffrey L.; Simonds, Charles H.; Phinney, William C. (Pergamon, 1973)
    The Apollo 16 rocks include cataclastic anorthosites, two varieties of unequilibrated breccia, two varieties of partly- to fully-equilibrated breccia, and a sequence of partially melted breccias. The latter, which dominate ...

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