Nevado San Francisco
Mountain in Argentina
From Wikipedia, the free encyclopedia
Nevado San Francisco, or Cerro San Francisco (Spanish pronunciation: [neˈβaðo/ˈsero saɱ fɾanˈsisko]), is a stratovolcano on the border between Argentina and Chile,[3] located just southeast of San Francisco Pass. It is considered extinct and is one of the several 6,000 m (19,700 ft) peaks in the area, of which the chief is the Ojos del Salado. It is on the border of 2 provinces: Argentinean province of Catamarca; Chilean province of Copiapo.[4][5][6]
| Nevado San Francisco | |
|---|---|
| |
| Highest point | |
| Elevation | 6,016 m (19,738 ft) |
| Prominence | 1,124 metres (3,688 ft)[1] |
| Parent peak | Ojos del Salado |
| Coordinates | 26°55′07.68″S 068°15′45.71″W |
| Geography | |
 | |
| Location | Argentina-Chile |
| Parent range | Andes |
| Geology | |
| Rock age | 1.34 - 1.32 million years ago |
| Stratovolcano | |
| Last eruption | Unknown |
| Climbing | |
| First ascent | 16 December 1913 - Walther Penck (Germany)[2] |
The volcano is part of the Central Volcanic Zone of the Andes[7] and reaches an elevation of 6,016 metres (19,738 ft).[8][4][a][b] It is composed from andesite with the exception of basaltic cones and lava flows on the eastern side. These cones are part of the Peinado lineament and a sample was dated 200,000 years ago by argon chronology.[15]: 74–75 They are noteworthy for their olivine phenocrysts.[7] One lava flow less than one million years old reaches a length of 11 kilometres (6.8 mi).[16] The western slopes contain dacitic lava domes.[17] On the summit lie two circle-shaped constructs, of Inca or Formative period ages.[15] San Francisco was first climbed by Walther Penck (Germany) on 16 December 1913.[18]
Notes
- Other data from digital elevation models: SRTM yields 6,027 metres (19,774 ft),[9] ASTER 6,019 metres (19,747 ft),[10] SRTM filled with ASTER6,027 metres (19,774 ft),[10] ALOS 6,019 metres (19,747 ft),[11] TanDEM-X 6,069 metres (19,911 ft)[12] and a handheld GPS survey by Maximo Kausch in October 2012 6,045 metres (19,833 ft).[13]
- The height of the nearest key col is 4,911 metres (16,112 ft),[14] leading to a topographic prominence of 1,124 metres (3,688 ft) with a topographical dominance of 18.62%. Its parent peak is Ojos del Salado and the Topographic isolation is 34.8 kilometres (21.6 mi).[13]
