Map functions can be and often are defined in terms of a fold such as foldr, which means one can do a map-fold fusion: foldr f z. map g is equivalent to foldr (f. g) z.
The Medusa Field is a deepwater development located in Mississippi Canyon Blocks 538 and 582, 100 miles (161 kilometers) south of New Orleans, La. The field is located in 2,200 feet of water (671 meters) and can produce up to 40,000 bopd. Murphy Oil Corp operates the field, holding a 60% working interest.
Medusa was one of three sisters born to Phorcys and Ceto known as the Gorgons. According to Hesiod 's Theogony, the Gorgons were the sisters of the Graiai and lived in the utmost place towards the night by the Hesperides beyond Oceanus. Later authors such as Herodotus and Pausanias place the Gorgons' abode in Libya.