Argyre Planitia
Crater on Mars / From Wikipedia, the free encyclopedia
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Argyre Planitia[2] /ˈɑːrdʒəriː/ is a plain located within the impact basin Argyre[lower-alpha 1] in the southern highlands of Mars. Its name comes from a map produced by Giovanni Schiaparelli in 1877; it refers to Argyre, a mythical island of silver in Greek mythology.
Planet | Mars |
---|---|
Coordinates | 49.7°S 316.0°E / -49.7; 316.0 |
Quadrangle | Argyre |
Diameter | 1,700 km (1,100 mi)[1] |
Depth | 5.2 km (17,000 ft) |
Eponym | Legendary island Argyre |
Argyre is centered at 49.7°S 316.0°E / -49.7; 316.0 and lies between 35° and 61° S and 27° and 62° W in the Argyre quadrangle. The basin is approximately 1,700 km (1,100 mi) wide[1] and drops 5.2 km (17,000 ft) below the surrounding plains; it is the second-deepest impact basin on Mars after Hellas. The crater Galle, located on the east rim of Argyre at 51°S 31°W, strongly resembles a smiley face.
The basin was formed by a giant impact during the Late Heavy Bombardment of the early Solar System, approximately 3.9 billion years ago, and may be one of the best preserved ancient impact basins from that period. Argyre is surrounded by rugged massifs which form concentric and radial patterns around the basin. Several mountain ranges are present, some of these mountain ranges include Charitum and Nereidum Montes.[4]