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  1. OA@INAF
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  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28297
Title: Mineralogy and temperature of crater Haulani on Ceres
Authors: TOSI, Federico 
CARROZZO, FILIPPO GIACOMO 
RAPONI, Andrea 
DE SANCTIS, MARIA CRISTINA 
Thangjam, G.
ZAMBON, Francesca 
CIARNIELLO, Mauro 
Nathues, A.
CAPRIA, MARIA TERESA 
ROGNINI, EDOARDO 
Ammannito, E.
Hoffmann, M.
Krohn, K.
Longobardo, A.
PALOMBA, Ernesto 
Pieters, C. M.
Stephan, K.
Raymond, C. A.
Russell, C. T.
Issue Date: 2018
Journal: METEORITICS & PLANETARY SCIENCE 
Number: 53
Issue: 9
First Page: 1902
Abstract: 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 NH<SUB>4</SUB>-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 Na<SUB>2</SUB>CO<SUB>3</SUB> may be still ongoing.
URI: http://hdl.handle.net/20.500.12386/28297
URL: https://onlinelibrary.wiley.com/doi/full/10.1111/maps.13078
ISSN: 1086-9379
DOI: 10.1111/maps.13078
Bibcode ADS: 2018M&PS...53.1902T
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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