Global distribution of neutrons from Mars: results from Mars odyssey.
Science
; 297(5578): 75-8, 2002 Jul 05.
Article
em En
| MEDLINE
| ID: mdl-12040088
ABSTRACT
Global distributions of thermal, epithermal, and fast neutron fluxes have been mapped during late southern summer/northern winter using the Mars Odyssey Neutron Spectrometer. These fluxes are selectively sensitive to the vertical and lateral spatial distributions of H and CO2 in the uppermost meter of the martian surface. Poleward of +/-60 degrees latitude is terrain rich in hydrogen, probably H2O ice buried beneath tens of centimeter-thick hydrogen-poor soil. The central portion of the north polar cap is covered by a thick CO2 layer, as is the residual south polar cap. Portions of the low to middle latitudes indicate subsurface deposits of chemically and/or physically bound H2O and/or OH.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Marte
/
Hidrogênio
/
Nêutrons
Idioma:
En
Ano de publicação:
2002
Tipo de documento:
Article