Compositions of isolated forsterites in Ornans (C3O)

Details Compositions of isolated forsterites in Ornans (C3O) Compositions of isolated forsterites in Ornans (C3O)

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gecoa..53.2069s&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 53, Aug. 1989, p. 2069-2079.

Computer Science

14

Carbonaceous Chondrites, Cathodoluminescence, Metal Oxides, Transition Metals, Grain Boundaries, Meteoritic Composition, Olivine, Meteorites, Composition, Forsterite, Ornans, Co3 Chondrites, Color, Iron, Cathodoluminescence, Mineralogy, Samples, Meteorite, Photomicrographs, Procedure, Laboratory Studies, Olivine, Zoning, Chromium, Titanium, Aluminum, Calcium, Chondrules, Origin, Formation, Carbonaceous Chondrites

Scientific paper

The Ornans (C3O) carbonaceous chondrite shows many examples of isolated olivine grains which are Mg-rich and show cathodoluminescence (CL). Using backscattered electron imaging to scan and select Mg-rich isolated olivine grains, and a CL detector, the chemical zoning within these grains was investigated together with its relation to CL and to chemical zoning of grains within a Fe-rich chondrule. Composition profiles from the core to the rim of five isolated forsterites showed details of Al, Ca, Sc, Ti, V, Cr, Mn, and Fe zoning with respet ot position and CL color.

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