Cile · Stratovolkan
Nevados de Chillán
Chillan, Nevados de
- Tipe
- Stratovolkan
- Ketinggian
- 3180 m
- Letusan terakhir
- 2022
- Tipe
- Stratovolkan
- Negara
- Cile
- Wilayah
- Amerika Selatan / Southern Andean Volcanic Arc
- Ketinggian
- 3180 m
- Koordinat
- -36.868, -71.378
- Letusan terakhir
- 2022
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
The compound volcano of Nevados de Chillán is one of the most active of the Central Andes. Three late-Pleistocene to Holocene stratovolcanoes were constructed along a NNW-SSE line within three nested Pleistocene calderas, which produced ignimbrite sheets extending more than 100 km into the Central Depression of Chile. The dominantly andesitic Cerro Blanco (Volcán Nevado) stratovolcano is located at the NW end of the massif. Volcán Viejo (Volcán Chillán), which was the main active vent during the 17th-19th centuries, occupies the SE end. The Volcán Nuevo lava-dome complex formed during 1906-1945 on the NW flank of Viejo. The Volcán Arrau dome complex was then constructed on the SE side of Volcán Nuevo between 1973 and 1986, and eventually exceeded its height. Smaller domes or cones are present in the 5-km valley between the two major edifices.
Ringkasan Wikipedia
Ringkasan InggrisNevados de Chillán is a group of stratovolcanoes located in the Andes of Ñuble Region, Central Chile, and is one of the most active volcanoes in the region. It consists of three overlapping peaks, 3,212 m (10,538 ft) Cerro Blanco in the northwest and 3,089 m (10,135 ft) Volcán Viejo in the southeast, with Volcán Nuevo in the middle. Volcán Viejo was the main active vent during the 17th-19th centuries, and the new Volcán Nuevo lava dome complex formed between 1906 and 1945, eventually growing to exceed Viejo in height by the mid-1980s.
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Riwayat letusan
32 tercatatGlosariumGaris waktu rinci
- 2016VEI 2Teramati2016-01-08 – 2022-10-17Nicanor crater
- 2009VEI ?Metode tidak dinyatakan2009-01-21 – 2009-01-22
- 2003VEI 1Teramati2003-08-29 – 2003-09-15Saddle between Nuevo & Arrau volcanoes
- 1973VEI 2Teramati1973-07-16 – 1986-07-02Volcán Arrau (SE flank of Volcán Nuevo)
- 1972VEI ?Metode tidak dinyatakan1972-07-02 – akhir tidak diketahuiVolcán Nuevo
- 1965VEI ?Metode tidak dinyatakan1965-07-02 – akhir tidak diketahuiVolcán Nuevo
- 1946VEI 2Teramati1946-07-02 – 1947-07-02Volcán Nuevo
- 1945VEI ?Metode tidak dinyatakan1945-07-02 – akhir tidak diketahuiVolcán Nuevo
- 1935VEI 2Teramati1935-07-02 – akhir tidak diketahuiWest flank of Volcán Viejo
- 1934VEI 2Teramati1934-01-17 – akhir tidak diketahuiVolcán Nuevo
- 1928VEI 2Teramati1928-11-30 – 1929-07-02Volcán Nuevo
- 1927VEI 2Teramati1927-04-10 – akhir tidak diketahuiVolcán Nuevo
- 1923VEI 2Metode tidak dinyatakan1923-07-02 – akhir tidak diketahuiVolcán Nuevo
- 1914VEI 2Teramati1914-07-02 – akhir tidak diketahuiVolcán Nuevo
- 1907VEI 1Teramati1907-07-02 – akhir tidak diketahuiVolcán Nuevo
- 1906VEI 2Teramati1906-08-06 – 1906-12-16Volcán Nuevo
- 1898VEI 2Teramati1898-07-02 – akhir tidak diketahuiVolcán Viejo
- 1893VEI 2Teramati1893-03-04 – akhir tidak diketahuiVolcán Viejo
- 1891VEI 2Teramati1891-02-16 – akhir tidak diketahuiVolcán Viejo
- 1883VEI 2Metode tidak dinyatakan1883-01-21 – akhir tidak diketahuiVolcán Viejo (Volcán las Aguilas?)
- 1877VEI 2Teramati1877-02-12 – akhir tidak diketahuiVolcán Chillán
- 1872VEI 2Teramati1872-07-22 – akhir tidak diketahuiVolcán Chillán
- 1864VEI 3Teramati1864-11-30 – 1865-02-03NW flank of Cerro Blanco (Santa Gertrudis)
- 1861VEI 2Teramati1861-06-16 – 1863-07-02NW flank of Cerro Blanco (Santa Gertrudis)
- 1860VEI 2Teramati1860-07-25 – akhir tidak diketahuiW flank of Volcán Viejo (Volcán Renegado)
- 1752VEI 2Teramati1752-01-30 – akhir tidak diketahuiCerro Blanco and Volcán Viejo?
- 1749VEI 3Teramati1749 – 1751Volcán Viejo
- 1650 (±50 tahun)VEI 3Teramati1650 – akhir tidak diketahuiVolcán Viejo
- 320 SM (±75 tahun)VEI ?Perkiraan geologi320 SM – akhir tidak diketahuiVolcán Viejo
- 1510 SM (±50 tahun)VEI ?Perkiraan geologi1510 SM – akhir tidak diketahuiVolcán Viejo
- 3660 SM (±500 tahun)VEI ?Perkiraan geologi3660 SM – akhir tidak diketahuiVolcán Viejo
- 6890 SM (±500 tahun)VEI ?Perkiraan geologi6890 SM – akhir tidak diketahuiVolcán Viejo
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