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Wednesday, July 15, 2020 | History

2 edition of chemical and petrographic study of refractory inclusions from Kaba (CV3) chondrite found in the catalog.

chemical and petrographic study of refractory inclusions from Kaba (CV3) chondrite

Yun-gang Liu

chemical and petrographic study of refractory inclusions from Kaba (CV3) chondrite

by Yun-gang Liu

  • 168 Want to read
  • 17 Currently reading

Published .
Written in English

    Subjects:
  • Chondrites (Meteorites).

  • Edition Notes

    Statementby Yun-gang Liu.
    The Physical Object
    Pagination106 leaves, bound :
    Number of Pages106
    ID Numbers
    Open LibraryOL15528523M

    Abstract– Although considerable progress has been made in unraveling the origin(s) of fayalitic olivines in dark inclusions (DIs), many questions remain still unresolved and/or controversial. We comb. CO () Found 24° 50′ N., 31° 40′ E. Five stones with black, bubbly crust were found by a member of the Geological Survey of Egypt in a farm field on the Nile River near Luxor. Today only a single 23 kg specimen remains preserved. Recent studies have determined that .

    chondrules and their more refractory counterparts, Ca-Al-rich inclusions (CAIs), which are considered the earliest solids formed in the solar system (Amelin et al. ), would therefore provide an estimate for the lifespan of the protoplanetary disk (Russell et al. and references therein). Although petrographic, mineralogical, chemical, and. Other articles where Refractory inclusion is discussed: carbonaceous chondrite: Second, refractory inclusions, which are the oldest objects known to have formed in the solar system, are most abundant in carbonaceous chondrites, particularly the CV group. Finally, the abundances in the CI and CM chondrites of material that predates the solar system are the highest of.

    Evidence for oxygen-isotope exchange in refractory inclusions from Kaba (CV) carbonaceous chondrite during fluid-rock interaction on the CV parent asteroid OPEN ACCESS 29/11/ by karmaka in AOA, aqueous alteration, CAI, carbonaceous chondrite, CV, parent body, refractory inclusions, type A. Textural and mineral-chemical data on freeze-thaw disaggregated refractory inclusions from the Murchison meteorite are reported. The data were obtained with neutron activation analysis, SEM, and spectroscopy, the study revealed corundum-bearing inclusions, spinel-hibonite aggregates and spherules, and spinel-pyroxene and elivine-pyroxene inclusions.


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Chemical and petrographic study of refractory inclusions from Kaba (CV3) chondrite by Yun-gang Liu Download PDF EPUB FB2

A chemical and petrographic study of refractory inclusions from Kaba (CV3) chondrite Public DepositedCited by: 1. A chemical and petrographic study of refractory inclusions from Kaba (CV3) chondrite. Kaba\ud inclusions are less altered by secondary reactions with a gas phase\ud at lower temperature, therefore informations of early solar nebular\ud conditions are better preserved.

The first detailed petrographic and mineralogical study of a Ca, Al-rich inclusion (CAI) from the Kaba CV3 chondrite is reported. This “fine-grained” CAI contains abundant small, rounded, rimmed, spinel-rich objects which have important features in common with the spinel-rich objects in other carbonaceous and ordinary by:   The first detailed petrographic and mineralogical study of a Ca, Al-rich inclusion (CAI) from the Kaba CV3 chondrite is reported.

This "fine-grained" CAI contains abundant small, rounded, rimmed, spinel-rich objects which have important features in common with the spinel-rich objects in other carbonaceous and ordinary chondrites.

These nodules are interpreted as fractionated distillation Cited by: A CHEMICAL AND PETROGRAPHIC STUDY OF REFRACTORY INCLUSIONS FROM KABA (CV3) CHONDRITE BY YUN-GANG LIU A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy Completed May.

A petrographic, chemical, and isotopic study of calcium-aluminum-rich inclusions and aluminum-rich chondrules from the Axtell (CV3) chondrite Article November with 53 Reads How we measure. Abstract— Twenty‐four refractory inclusions (40– μm, with average of 86 ± 40 μm) were found by X‐ray mapping of 18 ordinary chondrites.

All inclusions are heavily altered, consisting of finegrained feldspathoids, spinel, and Ca‐pyroxene with minor ilmenite. The presence of feldspathoids and lack of melilite are due to alteration that took place under oxidizing conditions as. A chemical and petrographic study of refractory inclusions from Kaba (CV3) chondrite Miscellaneous Liu, Y Refractory inclusions from Kaba (CV3) chondrite were studied by instrumental neutron activation analysis (INAA) and electron probe microanalysis (EPMA).

encountered is quite different among refractory inclusions in each of the C3V chondrites Kaba, Mokoia, and Allende. For this reason, we initiated combined petrographic, chemical, and isotopic studies on a suite of inclusions collected from samples of the Vigarano and Leoville C3 chondrites.

The. This comprehensive reference details the technical, chemical, and mechanical aspects of high-temperature refractory composite materials for step-by-step guidance on the selection of the most appropriate system for specific manufacturing processes.

The book surveys a wide range of lining system geometries and material combinations and covers a broad/5(3). It also contains detailed petrographic descriptions of refractory inclusions in general observed in CR2 chondrites during the course of this study.

We further evaluate the impact of data reduction protocols and choice of mass fractionation factor on the resulting 26 Al- 26 Mg isochrons.

A refractory inclusion in the Kaba CV3 chondrite - Some implications for the origin of spinel-rich o December Earth and Planetary Science Letters Fegley. A chemical and petrographic study of refractory inclusions from Kaba (CV3) chondrite. A metal particle from a Ca, Al-rich inclusion from the meteorite Allende, and the condensation of refractory siderophile elements.

A review of solar nebula models. A statistical analysis of chondrules in Chainpur meteorite. A refractory inclusion in the Kaba CV3 chondrite: some implications for the The first detailed petrographic and mineralogical study of a Ca, Al-rich inclusion (CAI) from the Kaba CV3 sizes, and chemical compositions.

Spinel-rich objects occur singly or in groups (Fig. They are Al-rich, with prominent core-and-rim. Evidence for oxygen-isotope exchange in refractory inclusions from Kaba (CV) carbonaceous chondrite during fluid-rock interaction on the CV parent asteroid Alexander N.

Krot, Kazuhide Nagashima. Meteorite research is fundamental to our understanding of the origin and early history of the Solar System. Some meteorites were produced by melting on asteroids, a few are from the Moon and others are martian.

Their study yields a chronology of the first million years of Solar System history and provides evidence that our Sun went through a highly radiative, T Tauri stage. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract-Ten inclusions, nine from Vigarano and one from Leoville, both members of the reduced subgroup of C3V chondrites, were analyzed for major and trace elements by neutron activation.

Most have some refractory element characteristics that are common in refractory inclusions from Allende, a member of the oxidized. elaboration of mullite refractory materials between ˚C and C. An X-ray diffraction ˚ (XRD) analysis showed that the refractory samples are composed of mullite, corundum and silica.

The length of the mullite crystals was meas- ured by a method of image analysis of scanning electron microscopy (SEM). Chemical and mechanical properties of. refractory inclusions and their mineral separates from the Meeker et al. () study of Allende. We also prepared cathodoluminescence (CL) images of polished sections of selected CV chondrites.

We heated samples of homogenized Allende powder for h at °C (Guimon and Sears, ), since such experiments. Grossman, L. () Book review: Handbook of Elemental Abundances in Meteorites, edited by B L. and MacPherson, G.J. () Refractory inclusions with unusual chemical compositions from the Vigarano carbonaceous chondrite.

Geochim. Cosmochim. A An SEM-petrographic study of amoeboid olivine aggregates in Allende. handbook of refractory materials Download handbook of refractory materials or read online books in PDF, EPUB, Tuebl, and Mobi Format.

Click Download or Read Online button to get handbook of refractory materials book now. This site is like a library, Use .Results of the electron microprobe, x-ray, and petrographic study and the experimental hydrothermal investigation of the “granites” suggest but do not prove that both the plagioclase composition and the mafic inclusion mineralogy can be explained in terms of a model which considers the inclusions to be the refractory residue left over from.Books to Borrow.

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