| Literature DB >> 17885128 |
Roberto Seu1, Roger J Phillips, Giovanni Alberti, Daniela Biccari, Francesco Bonaventura, Marco Bortone, Diego Calabrese, Bruce A Campbell, Marco Cartacci, Lynn M Carter, Claudio Catallo, Anna Croce, Renato Croci, Marco Cutigni, Antonio Di Placido, Salvatore Dinardo, Costanzo Federico, Enrico Flamini, Franco Fois, Alessandro Frigeri, Oreste Fuga, Emanuele Giacomoni, Yonggyu Gim, Mauro Guelfi, John W Holt, Wlodek Kofman, Carlton J Leuschen, Lucia Marinangeli, Paolo Marras, Arturo Masdea, Stefania Mattei, Riccardo Mecozzi, Sarah M Milkovich, Antonio Morlupi, Jérémie Mouginot, Roberto Orosei, Claudio Papa, Tobia Paternò, Paolo Persi del Marmo, Elena Pettinelli, Giulia Pica, Giovanni Picardi, Jeffrey J Plaut, Marco Provenziani, Nathaniel E Putzig, Federica Russo, Ali Safaeinili, Giuseppe Salzillo, Maria Rosaria Santovito, Suzanne E Smrekar, Barbara Tattarletti, Danilo Vicari.
Abstract
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.Mesh：
Substances：
Year: 2007 PMID： 17885128 DOI： 10.1126/science.1144120
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728