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Browsing by Author "Warner, Jeffrey L."

Browsing by Author "Warner, Jeffrey L."

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  • 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 ...
  • 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 ...
  • 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.
  • Warner, Jeffrey L.; Phinney, William C.; Bickel, Charles E.; Simonds, Charles H. (Pergamon Press, 1977)
    Attention is called to a group of rocks called feldspathic granulitic impactites. These samples are characterized by a high modal plagioclase content of between 70 and 80%. The samples are impactites in that they display ...
  • Ridley, W. I.; Reid, Arch M.; Warner, Jeffrey L.; Brown, Roy W.; Gooley, R.; Donaldson, Colin H. (Pergamon Press, 1973)
    Major element analyses have been made of 309 glasses in two Apollo 16 soils, 60501 and 61221. Averages of preferred glass compositions are used as a guide to the nature of the major rock types contributing to these soils.
  • 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 ...
  • McGee, Patricia E.; Warner, Jeffrey L.; Simonds, Charles H. (Lyndon B. Johnson Space Center, 1977-02)
    Basic petrographic, chemical, and age data is presented for a representative suite of igneous rocks gathered during the six Apollo missions. Tables are given for 69 samples: 32 igneous rocks and 37 impactites (breccias). ...
  • 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 ...
  • Warner, Jeffrey L.; Simonds, Charles H.; McGee, Patricia E.; Cochran , A. (Pergamon Press, 1978)
    Petrologic investigations of six samples of Luna 24 soil suggest: 1. Potassium, and by inference all lithophile trace elements, are depleted in the surficial rocks of the moon's eastern limb relative to the moon's central ...
  • Phinney, William C.; Warner, Jeffrey L.; Simonds, Charles H. (National Aeronautics and Space Administration, 1974)
    Lunar rocks may be classified into three major groups: (1) coarse-grained igneous rocks, (2) fine-grained igneous rocks, and (3) breccias. Group 1 is interpreted as primitive lunar crustal rocks that display various degrees ...
  • Reid, Arch M.; Warner, Jeffrey L.; Ridley, W. I.; Johnston, Dennis A.; Harmon, Russell S.; Jakeš, Petr; Brown, Roy W. (Pergamon Press, 1972)
    Data on the major element composition of glasses in Apollo 11, 12, and 14 and Luna 16 soils have been classified into groupings of preferred compositions by cluster analysis techniques. These preferred compositions are ...
  • 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 ...
  • Simonds, Charles H.; Warner, Jeffrey L.; Phinney, William C. (Pergamon, 1973)
    Poikilitic rocks, virtually all with low K-KREEP composition are found in all non-mare suites of lunar samples. Most of these rocks have low calcium pyroxene oikocrysts enclosing many chadacrysts of feldspar. The poikilitic ...
  • Simonds, Charles H.; Warner, Jeffrey L.; Phinney, William C.; McGee, Patricia E. (Pergamon Press, 1976)
    This paper extends the thermal model of Simonds to the full spectrum of impact-produced rocks ranging from fragmental breccias to impact melts. This is done by relating the basic textural features of impact-lithified rocks ...

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