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Filtering by: Creator Warren, Dana R. Remove constraint Creator: Warren, Dana R. Advisor Schmitt, Roman A. Remove constraint Advisor: Schmitt, Roman A. Degree Field Chemistry Remove constraint Degree Field: Chemistry

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  • The chemical composition of 61 individual Allende chondrules

    Creator:
    Warren, Richard Gregory
    Abstract:
    The abundances of 12 elements, Fe, A1, Na, Ni, Cr, Mn, Co, Ca, Sc, Ir, Sm and Eu have been determined by INAA in 61 individual chondrules (0.1-100 mg) separated from five Allende (C3) meteoritic fragments ( 25g). Ti and V have been determined in 18 of these chondrules, and...
    Resource Type:
    Masters Thesis
    Full Text:
    chondrules AN ABSTRACT OF THE THESIS OF RICHARD GREGORY WARREN for the MASTER OF SCIENCE (Name of student

  • A chemical and petrological study of igneous lithic clasts from the kapoeta howardite

    Creator:
    Smith, Monty Ray
    Abstract:
    Instrumental and radiochemical neutron activation analyses supported by electron microprobe mineral analyses (Paul Warren, University of New Mexico) and petrographic observations are presented for approximately forty individual clasts separated from the Kapoeta howardite. These clasts are classified into eucritic, cumulate-like, mafic (plagioclase ± olivine-bearing pyroxenites), pyroxenite, polymict and/or metal-rich and...
    Resource Type:
    Dissertation
    Full Text:
    (Paul Warren, University of New Mexico) and petrographic observations are present- ed for

  • Elemental abundances in meteoritic chondrules

    Creator:
    Osborn, Thomas Ward, III
    Abstract:
    High-precision instrumental neutron activation analysis has been used to determine Al, Na, Mn, Sc, Cr, Fe, Co, and Ni in a suite of more than 500 chondrules from 26 distinct meteorites. These meteorite specimens represent the H, L, LL and C chemical classes and most of the petrologic types. In...
    Resource Type:
    Dissertation
    Full Text:
    ACKNOWLEDGEMENTS This research was supervised by Dr. R. A. Schmitt who pro- vided continuing guidance and a

  • Chemical compositional studies of marginal rift and plateau basalts from Saudi Arabia

    Creator:
    Coles, D. G.
    Abstract:
    The analysis of 64 rock samples from Saudi Arabia and three samples from the axial trough of the Red Sea has been done. Instrumental neutron activation analysis (INAA) was the analytical tool used for the analysis of at least 18 and as many as 24 elements in these 67 rock...
    Resource Type:
    Masters Thesis
    Full Text:
    author's major professor, Dr. R. A. Schmitt. Dr. Schmitt not only provided financial assistance through a

  • Elemental abundances in the silicate phase of pallasitic meteorites

    Creator:
    Cooper, Thurman Dale
    Abstract:
    The silicate phases of 11 pallasites were analyzed instrumentally to determine the concentrations of some major, minor, and trace elements. The silicate phases were found to contain about 98% olivine with 1 to 2% accessory minerals such as lawrencite, schreibersite, troilite, chromite, and farringtonite present. The trace element concentrations, except...
    Resource Type:
    Masters Thesis
    Full Text:
    - alysis) is covered in great detail in the theses of D. G. Coles (1972), R. G. Warren (19 71), and T. W

  • A chemical study of the minerals from L-6 chondritic meteorites

    Creator:
    Curtis, David Ballantyne
    Abstract:
    Major and minor minerals have been separated from three L-6 chondritic meteorites (Alfianello, Colby (Wisconsin), and Leedey). Olivine, hypersthene, diopside, feldspar, troilite, chromite, phosphate minerals, and metallic minerals were analyzed for major, minor and trace elements using instrumental neutron activation analysis and radiochemical neutron activation analysis techniques. Concentrations df the...
    Resource Type:
    Dissertation
    Full Text:
    Redacted for Privacy Dean of Graduate School Date thesis is presented October 30, 1974 Typed by Dana

  • Geochemical study of Hawaiian basalts

    Creator:
    Budahn, James Richard
    Resource Type:
    Masters Thesis
    Full Text:
    Compositional dependence of Fo(m) vs. Fo(R) at various 61 degrees of olivine fractionation for a typical low

  • Analysis of fourteen trace elements in Saudi Arabian layered gabbros by radiochemical neutron activation analysis

    Creator:
    Palmer, Curtis Allyn
    Abstract:
    Eight layered gabbro samples from two layered complexes, two xenoliths, one basalt from a hot brine area and a standard basalt rock (BCR-1) were analyzed by RNAA (radiochemical neutron activation analysis) for 14 trace elements, Au, Ni, Co, Ag, Sb, Se, Zn, In, T1, Rb, Cs, U, Ba and Sr....
    Resource Type:
    Masters Thesis
    Full Text:
    crew at the OSU TRIGA Reactor and Richard Warren and his crew at the University of Missouri Research

  • Chemical and statistical analyses of chondrules from the Mokoia (CV3) meteorite

    Creator:
    Schilk, Alan J.
    Abstract:
    Nearly 100 chondrules were extracted from -8.6g of the Mokoia (CV3) meteorite and have been analyzed by sequential instrumental neutron activation analysis (INAA). The resulting data were utilized in a comprehensive statistical characterization of these objects and, unlike similar investigations, virtually no loss of relevant data was incurred due to...
    Resource Type:
    Dissertation
    Full Text:
    (ibid.). 5 Os I r Ru M Co Fe Au As Cu Ga Sb Ge Se Zn S 8 n.b., the numerical designation here