Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Presence and detection of carbonates on the Martian surface
Autore:
Fonti, S; Jurewicz, A; Blanco, A; Blecka, MI; Orofino, V;
Indirizzi:
Univ Lecce, Dept Phys, I-73100 Lecce, Italy Univ Lecce Lecce Italy I-73100 iv Lecce, Dept Phys, I-73100 Lecce, Italy Polish Acad Sci, Space Res Ctr, PL-00716 Warsaw, Poland Polish Acad Sci Warsaw Poland PL-00716 Res Ctr, PL-00716 Warsaw, Poland
Titolo Testata:
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
fascicolo: E11, volume: 106, anno: 2001,
pagine: 27815 - 27822
SICI:
0148-0227(20011125)106:E11<27815:PADOCO>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
EARLY MARS; OPTICAL-CONSTANTS; DUST; SPECTRA; SEARCH; CLIMATE; SPECTROMETER; SIMULATIONS; EMITTANCE; METEORITE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
41
Recensione:
Indirizzi per estratti:
Indirizzo: Fonti, S Univ Lecce, Dept Phys, CP 193,Via Arnesano, I-73100 Lecce, Italy Univ Lecce CP 193,Via Arnesano Lecce Italy I-73100 Lecce, Italy
Citazione:
S. Fonti et al., "Presence and detection of carbonates on the Martian surface", J GEO R-PLA, 106(E11), 2001, pp. 27815-27822

Abstract

The messages we receive from Mars about the presence of carbonates are quite contradictory. On the one hand, images of the planet clearly show the signatures of past bodies of standing water, where the accumulation of sedimentary deposits should have occurred. On the other hand, the apparent absence of carbonates in the homogeneous fines covering the Martian surface raises the question: where could carbonates hide now? In this paper we discuss the subject and demonstrate that a proposed destruction mechanism, the photodecomposition caused by UV radiation, cannot account alone for the "missing" carbonates. By means of simulations we show that the difficulties in detecting the carbonates can be ascribed to the low temperatures of the emitting zones, observed up to now. Finally, we derive the minimum amount of such minerals that could possibly be detected in future observations of Mars, and we compare the results of simulations with observed spectra.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/04/20 alle ore 03:56:53