Chondrules
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Our group studies meteorite chondrules by:
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1.
analysis of the composition of individual phases minerals
and in chondrules by electron microprobe analysis
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2.
bulk analysis by instrumental neutron activation analysis
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3.
isotope analysis in collaboration with other groups
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We are especially interested in:
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1.
Documenting the range of chondrule properties, especially
with respect to composition. To this end we have proposed a compositional
classification scheme for chondrules which we have applied to ordinary
chondrites and plan to extend to carbonaceous and enstatite chondrites.
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2.
Reactions occuring during chondrule formation, these being mainly
the loss of volatiles, reduction of FeO and other species and isotopic
fractionations and exchange with ambient gases.
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3.
Formation of chondrules.
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Below is the chondrule classification scheme
devised for ordinary chondrites using cathodoluminescence
(Sears
et al. 1992).
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