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Classification of hydrous meteorites (CR, CM and C2 ungrouped) by phyllosilicate fraction: PSD-XRD modal mineralogy and planetesimal environments
Distribution of 26 Al in the CR chondrite chondrule-forming region of the protoplanetary disk
Evidence for widespread hydrated minerals on asteroid (101955) Bennu
Evidence for abundant hydrated minerals on the surface of near-Earth asteroid Bennu is revealed in the form of a near-infrared absorption near 2.7 µm and thermal infrared spectral features that are most similar to those of aqueously altered CM-type carbonaceous chondrites.
Large enantiomeric excesses in primitive meteorites and the diverse effects of water in cosmochemical evolution
- S. Pizzarello, D. Schrader, A. A. Monroe, D. Lauretta
- GeologyProceedings of the National Academy of Sciences
- 9 July 2012
It is found that several CR compounds are fully represented in stones with no or minimal water exposure indicating a formation that, if solar, preceded parent body processes, and the most pristine CRs also revealed natal enantiomeric excesses of up to 60%, much larger than ever recorded.
The formation and alteration of the Renazzo-like carbonaceous chondrites I: Implications of bulk-oxygen isotopic composition
The formation and alteration of the Renazzo-like carbonaceous chondrites II: Linking O-isotope composition and oxidation state of chondrule olivine
The formation and alteration of the Renazzo‐like carbonaceous chondrites III: Toward understanding the genesis of ferromagnesian chondrules
To better understand the formation conditions of ferromagnesian chondrules from the Renazzo‐like carbonaceous (CR) chondrites, a systematic study of 210 chondrules from 15 CR chondrites was…
A water–ice rich minor body from the early Solar System: The CR chondrite parent asteroid
Opaque phases in type-II chondrules from CR2 chondrites: Implications for CR parent body formation
Shape of (101955) Bennu indicative of a rubble pile with internal stiffness
The shape model indicates that near-Earth asteroid Bennu formed by reaccumulation and underwent past periods of fast spin, which led to its current shape, similar to other top-shaped asteroids.