The Nysa family as the main source of unequilibrated LL ordinary chondrites

Q: What does this research mean for the field?

The petrologic diversity of LL ordinary chondrites originates from multiple parent bodies, with the Nysa family supplying unequilibrated LL3 material and the Flora family supplying higher-grade material. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

M. Marsset; P. Vernazza; M. Brǒz; C. Avdellidou; C. A. Thomas; L. McGraw; A. Madden-Watson; K. Minker; M. Monnereau; F. E. DeMeo; R. P. Binzel; M. Mahlke; B. Carry; J. Hanǔs; P. N. Simon; B. Yang; P. Beck; M. Birlan; E. Jehin

doi:10.1051/0004-6361/202659352/pdf

Key Points

This research investigates the origin of the petrologic diversity in LL ordinary chondrites, focusing on their parent bodies.
Compared spectral and mineralogical properties of LL chondrites and near-Earth objects (NEOs) from main asteroid belt.
Modeled thermal histories of proposed parent bodies using revised size estimates.
Analyzed contributions from the Nysa and Flora families to LL chondrites.
LL3 chondrites exclusively originate from the Nysa family, while LL6 chondrites have distinct origins.
Results indicate that multiple parent bodies contributed to the formation of LL chondrites.
Petrologic differences between Nysa and Flora can be attributed to their sizes, not formation times.

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Implication

Determines the origin of LL chondrites, suggesting multiple parent bodies as a key factor.

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Cite This Study

Marsset et al. (2026) studied this question.

synapsesocial.com/papers/6a23ba3c71a5da9775e75f11 https://doi.org/10.1051/0004-6361/202659352/pdf

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The Nysa family as the main source of unequilibrated LL ordinary chondrites

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Implication

Discussion

Cite This Study

The Nysa family as the main source of unequilibrated LL ordinary chondrites

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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