What inclusion found in chondrites indicates they are the most primitive meteorites formed in the early solar nebula?
Answer
Chondrules
Chondrites are recognized as the most primitive class of stony meteorites because they have remained largely unchanged since their formation in the nascent solar nebula. Their primitive nature is evidenced by the presence of small, spherical inclusions called chondrules. These chondrules are essentially relict beads of melted material that solidified rapidly during the initial stages of the solar system's accretion. The very existence and structure of chondrules within the rock matrix confirm that these meteorites have not undergone significant internal melting or subsequent geological differentiation since their earliest formation.
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