Accumulation and erosion of Mars' south polar layered deposits.
Mars' polar regions are covered with ice-rich layered deposits that potentially contain a record of climate variations. The sounding radar SHARAD on the Mars Reconnaissance Orbiter mapped detailed subsurface stratigraphy in the Promethei Lingula region of the south polar plateau, Planum Australe. Radar reflections interpreted as layers are correlated across adjacent orbits and are continuous for up to 150 kilometers along spacecraft orbital tracks. The reflectors are often separated into discrete reflector sequences, and strong echoes are seen as deep as 1 kilometer. In some cases, the sequences are dipping with respect to each other, suggesting an interdepositional period of erosion. In Australe Sulci, layers are exhumed, indicating recent erosion.
Seu
Roberto
R
Dipartimento INFOCOM, Università di Roma "La Sapienza," I-00184 Rome, Italy. roberto.seu@uniroma1.it
Phillips
Roger J
RJ
Alberti
Giovanni
G
Biccari
Daniela
D
Bonaventura
Francesco
F
Bortone
Marco
M
Calabrese
Diego
D
Campbell
Bruce A
BA
Cartacci
Marco
M
Carter
Lynn M
LM
Catallo
Claudio
C
Croce
Anna
A
Croci
Renato
R
Cutigni
Marco
M
Di Placido
Antonio
A
Dinardo
Salvatore
S
Federico
Costanzo
C
Flamini
Enrico
E
Fois
Franco
F
Frigeri
Alessandro
A
Fuga
Oreste
O
Giacomoni
Emanuele
E
Gim
Yonggyu
Y
Guelfi
Mauro
M
Holt
John W
JW
Kofman
Wlodek
W
Leuschen
Carlton J
CJ
Marinangeli
Lucia
L
Marras
Paolo
P
Masdea
Arturo
A
Mattei
Stefania
S
Mecozzi
Riccardo
R
Milkovich
Sarah M
SM
Morlupi
Antonio
A
Mouginot
Jérémie
J
Orosei
Roberto
R
Papa
Claudio
C
Paternò
Tobia
T
Persi del Marmo
Paolo
P
Pettinelli
Elena
E
Pica
Giulia
G
Picardi
Giovanni
G
Plaut
Jeffrey J
JJ
Provenziani
Marco
M
Putzig
Nathaniel E
NE
Russo
Federica
F
Safaeinili
Ali
A
Salzillo
Giuseppe
G
Santovito
Maria Rosaria
MR
Smrekar
Suzanne E
SE
Tattarletti
Barbara
B
Vicari
Danilo
D
D005118:Extraterrestrial Environment; D007053:Ice; D018535:Mars
D007053:Ice