Argentina · Kaldera
Robledo
Blanco, Cerro
- Tipe
- Kaldera
- Ketinggian
- 4670 m
- Letusan terakhir
- -2300
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- Tipe
- Kaldera
- Negara
- Argentina
- Wilayah
- Amerika Selatan / Central Andean Volcanic Arc
- Ketinggian
- 4670 m
- Koordinat
- -26.766, -67.746
- Letusan terakhir
- -2300
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Kaldera
- Batuan utama
- Riolit
Ringkasan geologi
The Cerro Blanco volcanic complex contains the 5-km-diameter Cerro Blanco (or Robledo) caldera in NW Argentina, 80 km SW of the Cerro Galán caldera. Cerro Blanco was the site of the largest known Holocene eruption in the Central Andes about 4,200 years BP (Fernandez-Turiel et al., 2013). The rhyolitic Plinian eruption produced ashfall over about 110 km3 and widespread ignimbrite deposits. The large Cerro Blanco del Robledo lava dome overgrew the SW rim of the caldera and is surrounded by extensive rhyolitic pumice-fall deposits. Satellite geodetic surveys in the central Andes (Pritchard and Simons, 2002) showed subsidence of the caldera in the 1990s.
Ringkasan Wikipedia
Ringkasan InggrisCerro Blanco is a caldera in the Andes of the Catamarca Province in Argentina. Part of the Central Volcanic Zone of the Andes, it is a volcano collapse structure located at an altitude of 4,670 metres (15,320 ft) in a depression. The caldera is associated with a less well-defined caldera to the south and several lava domes.
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Riwayat letusan
1 tercatatGlosariumGaris waktu rinci
- 2300 SM (±160 tahun)VEI 7Perkiraan geologi2300 SM – akhir tidak diketahui
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