TY  - RPRT
TI  - Dark materials in Valles Marineris: Indications of the style of volcanism and magmatism on Mars
AU  - Paul E. Geissler
AU  - Robert B. Singer
AU  - Baerbel K. Lucchitta
PY  - 2012
DO  - 10.1029/jb095ib09p14399
UR  - https://pubs.usgs.gov/publication/70200538
ID  - 70200538
ER  -