Pomerape | |
---|---|
Highest point | |
Elevation | 6,282 m (20,610 ft) [1] |
Prominence | 950 m (3,120 ft) |
Isolation | 4 km (2.5 mi) |
Coordinates | 18°07′33″S 69°07′39″W / 18.12583°S 69.12750°W |
Geography | |
Parent range | Andes |
Geology | |
Age of rock | Pleistocene |
Mountain type | Stratovolcano |
Climbing | |
Easiest route | snow/ice climb |
Pomerape is a stratovolcano lying on the border of northern Chile and Bolivia ( Oruro Department, Sajama Province, Curahuara de Carangas Municipality). [2] It is part of the Payachata complex of volcanoes, together with Parinacota Volcano to the south. The name "Payachata" means "twins" and refers to their appearance. [3] It hosts glaciers down to elevations of 5,300–5,800 metres (17,400–19,000 ft), lower on the northern slope. [4]
Pomerape is a complex of lava domes, accompanied by lava flows which were emplaced atop of the domes. [5] It was active about 200,000 years ago. [6] The lava domes formed first and were later buried by the actual volcanic cone, which unlike the rhyolitic-dacitic domes is formed by hornblende andesite. [7] The "Chungará Andesites" and lava dome complex of Parinacota were laid down at this time. [8] Pomerape is associated with an adventive vent that has erupted mafic magmas. The main cone was last active 106,000 +- 7,000 years ago, [9] the adventive vent is dated to 205,000 ± 24,000 years ago. [10]
Climbing the volcano is alpine grade PD by the east ridge. [11] Harder routes exist on the south face, sometimes on 50+ degree snow/rubble slope. For these routes a camp can be established at 5,300 metres (17,390 ft) at the saddle between Parinacota and Pomerape. Depending on the season, the main difficulty can be penitentes (tall ice-blade needles), which make the ascent physically difficult or impossible.
Pomerape | |
---|---|
Highest point | |
Elevation | 6,282 m (20,610 ft) [1] |
Prominence | 950 m (3,120 ft) |
Isolation | 4 km (2.5 mi) |
Coordinates | 18°07′33″S 69°07′39″W / 18.12583°S 69.12750°W |
Geography | |
Parent range | Andes |
Geology | |
Age of rock | Pleistocene |
Mountain type | Stratovolcano |
Climbing | |
Easiest route | snow/ice climb |
Pomerape is a stratovolcano lying on the border of northern Chile and Bolivia ( Oruro Department, Sajama Province, Curahuara de Carangas Municipality). [2] It is part of the Payachata complex of volcanoes, together with Parinacota Volcano to the south. The name "Payachata" means "twins" and refers to their appearance. [3] It hosts glaciers down to elevations of 5,300–5,800 metres (17,400–19,000 ft), lower on the northern slope. [4]
Pomerape is a complex of lava domes, accompanied by lava flows which were emplaced atop of the domes. [5] It was active about 200,000 years ago. [6] The lava domes formed first and were later buried by the actual volcanic cone, which unlike the rhyolitic-dacitic domes is formed by hornblende andesite. [7] The "Chungará Andesites" and lava dome complex of Parinacota were laid down at this time. [8] Pomerape is associated with an adventive vent that has erupted mafic magmas. The main cone was last active 106,000 +- 7,000 years ago, [9] the adventive vent is dated to 205,000 ± 24,000 years ago. [10]
Climbing the volcano is alpine grade PD by the east ridge. [11] Harder routes exist on the south face, sometimes on 50+ degree snow/rubble slope. For these routes a camp can be established at 5,300 metres (17,390 ft) at the saddle between Parinacota and Pomerape. Depending on the season, the main difficulty can be penitentes (tall ice-blade needles), which make the ascent physically difficult or impossible.