L Meteorite Classification

Class Description

The classification “L” refers to an ordinary chondrite from the L group, but the specific petrologic type has not been determined. Ordinary chondrites are a major type of meteorite known for their sub-solar Mg/Si and refractory/Si ratios, oxygen isotope compositions distinct from Earth, and a composition mostly consisting of chondrules with a smaller amount of fine-grained matrix. The L group, in particular, is characterized by relatively lower siderophile element content, moderate-sized chondrules (around 0.7 mm), and oxygen isotope compositions intermediate between the H and LL groups of ordinary chondrites.

L Meteorite Examples

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