The Malvern howardite: a petrological and chemical discussion |
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| Authors: | C Desnoyers DY Jerome |
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| Institution: | Laboratoire de Minéralogie-Cristallographie1, Université Pierre et Marie Curie, 4 place Jussieu, 75230 Paris Cedex 05, France |
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| Abstract: | The Malvern howardite contains glass, probably formed by impact on the surface of a parent body. This achondrite also contains a large xenolith, a breccia in breccia. A mineralogical and chemical study of the stone has been carried out by means of electron microprobe and neutron activation analysis.Individual mineral and bulk compositions show the eucritic character of the xenolith. Most of the stone results from mechanical mixing of possibly related rocks, with glass derived by total or partial melting. Foreign components seem to be present as well. |
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