Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/24919
DC Field | Value | Language |
---|---|---|
dc.contributor.author | DE ANGELIS, Simone | en_US |
dc.contributor.author | Manzari, P. | en_US |
dc.contributor.author | DE SANCTIS, MARIA CRISTINA | en_US |
dc.contributor.author | Ammannito, E. | en_US |
dc.contributor.author | Di Iorio, T. | en_US |
dc.date.accessioned | 2020-05-18T13:55:32Z | - |
dc.date.available | 2020-05-18T13:55:32Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0019-1035 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/24919 | - |
dc.description.abstract | Carbonates and clay minerals are present in Solar System bodies such as Mars and asteroid (1) Ceres. Brucite has been proposed in the recent past to fit absorption features in spectra of Ceres. In this study Visible-Near Infrared reflectance spectroscopic measurements have been performed on brucite-carbonate-clay minerals mixtures, in the 0.2-5.1 μm spectral range. Different sets of three- and two-components mixtures have been prepared using these three fine powdered endmembers, by varying the relative proportions of carbonate, clay and brucite. Spectra have been acquired on the endmembers components separately and on the mixtures. Absorption features diagnostic of the carbonate, clay and brucite phases have been analyzed and band parameters (position, depth, area, width) determined. Several trends and correlations with mineral phase content in each mixture have been investigated, with the aim to determining how endmember components influence the mixture spectra and their minimum detectability threshold. Our results indicate that brucite is detectable in mineral mixtures with carbonates and clays, based on its main absorption features at 0.95, 2.45-2.47 and 3.05 μm. While the 0.95 and 3.05 μm features are only discernible for very high brucite contents in the mixtures, the ∼2.45 μm band turns out to be highly diagnostic, also for very small amounts of brucite (of the order of 10 wt%). These experiments, together with DAWN observations of Ceres, substantially rule out the presence of great amounts of brucite globally distributed on the surface of Ceres. | en_US |
dc.language.iso | eng | en_US |
dc.title | VIS-IR study of brucite-clay-carbonate mixtures: Implications for Ceres surface composition | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.icarus.2016.07.002 | en_US |
dc.identifier.scopus | 2-s2.0-84990039020 | en_US |
dc.identifier.isi | 000384629200022 | en_US |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0019103516303645?via%3Dihub | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 280 | en_US |
dc.relation.firstpage | 315 | en_US |
dc.relation.lastpage | 327 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ICARUS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016Icar..280..315D | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | IAPS Roma | - |
crisitem.author.dept | IAPS Roma | - |
crisitem.author.orcid | 0000-0002-0264-7233 | - |
crisitem.author.orcid | 0000-0002-3463-4437 | - |
crisitem.journal.journalissn | 0019-1035 | - |
crisitem.journal.ance | E079353 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
De Angelis et al. 2016 ICARUS - brucite mixtures vs Ceres - in press.pdf | postprint | 6.04 MB | Adobe PDF | View/Open |
Icarus2016-main.pdf | [Administrators only] | 6.05 MB | Adobe PDF |
Page view(s)
53
checked on Apr 19, 2024
Download(s)
22
checked on Apr 19, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.