Table 2

Summary of prominent gravity anomaly amplitudes (3, 7). Lat., latitude; deg, degree; long., longitude.

Structure Lat. (deg)Long. (deg) Anomaly (mgal)
Northern hemisphere
Isidis 12°N 85°E 600
Utopia 45°N110°E 350
Elysium 25°N 148°E 450
Olympus Mons 18°N 226°E 2750
Alba Patera40°N 245°E 430
Ascraeus Mons 11°N 255°E1380
Pavonis Mons  0°N 247°E 900
Southern hemisphere
Arsia Mons  9°S240°E 1350
Hellas 40°S  68°E−150
Arygre 50°S 315°E−140
Valles Marineris 5°S to 18°S 260°E to 330°E−450