Computer Science
Scientific paper
Jun 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987gecoa..51.1503p&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 51, June 1987, p. 1503-1510.
Computer Science
18
Allende Meteorite, Chondrule, Meteoritic Composition, Olivine, Diffusion, Glass, Meteorites, Allende, Chondrules, Olivine, Mineralogy, Zoning, Origin, Crystals, Stony Meteorites, Cv3 Chondrites, Structure, Matrix, Nebula, Formation, Carbonaceous Chondrites, Description, Electron Microscopy, Emplacement, Chronology, Diffusion, Boundaries, Concentration, Gases, Aluminum, Chromium, Titanium, Condensation, Samples, Meteorite, Rims, Bse Methods, Iron Material
Scientific paper
Very similar major and minor element compositions are noted in the ferrous olivine occurring in chondrules at olivine grain boundaries, along cracks in olivine grains, interleaved with enstatite, and in the inner portions of exposed olivine grain surface rims; simultaneous formation by a single process is therefore suggested. The ferrous chondrule olivine probably formed by the reaction of chondrules with very hot nebular vapors over a period of several hours, followed by the condensation of residual metal vapors onto those olivine surfaces that were in direct contact with the gas as the system cooled. The ferrous chondrule olivine that occurs interleaved with enstatite in Allende does not have a composition identical to, and is not the precursor of, matrix olivine.
Peck John A.
Wood John A.
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