A comparison of the compositions of chondrules in EH and EL chondrites and discussion of some implications

Mathematics – Logic

Scientific paper

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Chondrites, Chondrule, Meteoritic Composition, Silicates, Minerals, Regolith, Metal Compounds, Cathodoluminescence, Textures

Scientific paper

We report compositional data for chondrules from EL3 chondrites and compare them with data for EH3 chondrules. The chondrules in three EL3 chondrites display a range of compositional and textural properties similar to those of chondrules in EH3 chondrites. However, EL3 chondrules are significantly larger than chondrules from EH3 chondrites. This is consistent with the compositional differences between the EL and EH chondrite classes being due to metal-silicate fraction by aerodynamic and gravitational separation of components in a dynamic regolith and with mineralogical differences between the EH and EL classes reflecting different burial depths in the regolith.

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