Skip to Main content Skip to Navigation
Journal articles

Distribution of phyllosilicates on the surface of Ceres

Abstract : The dwarf planet Ceres is known to host phyllosilicate minerals at its surface, but their distribution and origin have not previously been determined. We used the spectrometer onboard the Dawn spacecraft to map their spatial distribution on the basis of diagnostic absorption features in the visible and near-infrared spectral range (0.25 to 5.0 micrometers). We found that magnesium- and ammonium-bearing minerals are ubiquitous across the surface. Variations in the strength of the absorption features are spatially correlated and indicate considerable variability in the relative abundance of the phyllosilicates, although their composition is fairly uniform. These data, along with the distinctive spectral properties of Ceres relative to other asteroids and carbonaceous meteorites, indicate that the phyllosilicates were formed endogenously by a globally widespread and extensive alteration process.
Keywords : PLANET SCI
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03669432
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Monday, May 16, 2022 - 3:52:09 PM
Last modification on : Monday, July 4, 2022 - 9:44:38 AM

Identifiers

Collections

Citation

E. Ammannito, M. C. Desanctis, M. Ciarniello, A. Frigeri, F. G. Carrozzo, et al.. Distribution of phyllosilicates on the surface of Ceres. Science, 2016, 353, ⟨10.1126/science.aaf4279⟩. ⟨insu-03669432⟩

Share

Metrics

Record views

2