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  Mineralogy and temperature of crater Haulani on Ceres

Tosi, F., Carrozzo, F. G., Raponi, A., De Sanctis, M. C., Thangjam, G. S., Zambon, F., et al. (2018). Mineralogy and temperature of crater Haulani on Ceres. Meteoritics and Planetary Science, 53(9), 1902-1924. doi:10.1111/maps.13078.

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Tosi, F., Autor
Carrozzo, F. G., Autor
Raponi, A., Autor
De Sanctis, M. C. , Autor
Thangjam, Guneshwar Singh1, Autor           
Zambon, F., Autor
Ciarniello, M., Autor
Nathues, Andreas1, Autor           
Capria, M. T., Autor
Rognini, E., Autor
Ammannito, E., Autor
Hoffmann, Martin1, Autor           
Krohn, K., Autor
Longobardo, A., Autor
Palomba, E., Autor
Pieters, C. M., Autor
Stephan, K., Autor
Raymond, C. A., Autor
Russell, C. T., Autor
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 Zusammenfassung: We investigate the region of crater Haulani on Ceres with an emphasis on mineralogy as inferred from data obtained by Dawn's Visible InfraRed mapping spectrometer (VIR), combined with multispectral image products from the Dawn Framing Camera (FC) so as to enable a clear correlation with specific geologic features. Haulani, which is one of the youngest craters on Ceres, exhibits a peculiar “blue” visible to near‐infrared spectral slope, and has distinct color properties as seen in multispectral composite images. In this paper, we investigate a number of spectral indices: reflectance; spectral slopes; abundance of Mg‐bearing and NH4‐bearing phyllosilicates; nature and abundance of carbonates, which are diagnostic of the overall crater mineralogy; plus a temperature map that highlights the major thermal anomaly found on Ceres. In addition, for the first time we quantify the abundances of several spectral endmembers by using VIR data obtained at the highest pixel resolution (~0.1 km). The overall picture we get from all these evidences, in particular the abundance of Na‐ and hydrous Na‐carbonates at specific locations, confirms the young age of Haulani from a mineralogical viewpoint, and suggests that the dehydration of Na‐carbonates in the anhydrous form Na2CO3 may be still ongoing.

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Sprache(n): eng - English
 Datum: 2019-04-042018
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1111/maps.13078
 Art des Abschluß: -

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Titel: Meteoritics and Planetary Science
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Fayetteville, AR : Meteoritical Society at the University of Arkansas, Dept. of Chemistry and Biochemistry
Seiten: - Band / Heft: 53 (9) Artikelnummer: - Start- / Endseite: 1902 - 1924 Identifikator: ISSN: 1086-9379
CoNE: https://pure.mpg.de/cone/journals/resource/954925424162