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Volcán Maipo

Maipo

Kaldera · Chile-Argentina · 5323 m

Maipo volcano, seen here from the west, partially fills the Pleistocene Diamante caldera. The floor of the large 15 x 20 km caldera, which formed about 0.45 million years ago during an eruption that produced a 450 cu km ignimbrite, is visible below Maipo. The 5264-m-high basaltic andesite stratovolcano has a relatively simple structure, but has a flank rhyodacitic lava-dome complex and pyroclastic cones on its eastern flank. Lava flows from these cones extend into Laguna Diamante on the eastern side of the caldera.
Maipo volcano, seen here from the west, partially fills the Pleistocene Diamante caldera. The floor of the large 15 x 20 km caldera, which formed about 0.45 million years ago during an eruption that produced a 450 cu km ignimbrite, is visible below Maipo. The 5264-m-high basaltic andesite stratovolcano has a relatively simple structure, but has a flank rhyodacitic lava-dome complex and pyroclastic cones on its eastern flank. Lava flows from these cones extend into Laguna Diamante on the eastern side of the caldera. · Foto: Photo by Wolfgang Foerster, courtesy of Oscar González-Ferrán (University of Chile). · Wikimedia Commons
Tipe
Kaldera
Negara
Chile-Argentina
Wilayah
South America Volcanic Regions / Southern Andean Volcanic Arc
Ketinggian
5323 m
Koordinat
-34.164, -69.832
Letusan terakhir
1912
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Trachyandesite / Basaltic Trachyandesite
Ringkasan geologi

Maipo, a conical stratovolcano that straddles the Chile-Argentina border SE of Santiago, partially fills the 16 x 20 km Pleistocene Diamante caldera, which formed about 450,000 years ago during an eruption that produced an about 350 km3 of rhyolitic ignimbrite. The Pleistocene cones of Volcán Don Casimiro and Cerro Listado were formed on the SW rim and SW flank of the caldera, respectively. The post-caldera Maipo rises about 1,900 m above the caldera floor, and has several cones on the E flank along a series of en échelon NE-trending fractures. Lava flows from one of these cones blocked drainages in 1826 inside the caldera, forming Lake Diamante on the eastern caldera floor.

Ringkasan Wikipedia

Ringkasan Inggris

Maipo is a stratovolcano in the Andes, lying on the border between Argentina and Chile. It is located 90 km (56 mi) south of Tupungato and about 100 km (62 mi) southeast of Santiago. It has a symmetrical, conical volcanic shape, and is among the southernmost 5,000 metre peaks in the Andes.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1788~1800 · 1 letusan · VEI maks. ?1813~1825 · 1 letusan · VEI maks. ?1825~1838 · 6 letusan · VEI maks. 21862~1875 · 1 letusan · VEI maks. 21875~1887 · 1 letusan · VEI maks. ?1900~1912 · 3 letusan · VEI maks. 217881813185018751900

Garis waktu rinci

  1. 1912VEI 2Teramati
    1912 – Berlangsung
  2. 1908VEI 2Perkiraan geologi
    1908 – Berlangsung
  3. 1905VEI 2Teramati
    1905-10-28 – 1905-10-30
  4. 1881VEI ?Perkiraan geologi
    1881 – Berlangsung
  5. 1869VEI 2Perkiraan geologi
    1869-08-24 – Berlangsung
  6. 1837VEI ?Perkiraan geologi
    1837 – Berlangsung
  7. 1835VEI ?Perkiraan geologi
    1835 – Berlangsung
  8. 1833VEI 2Perkiraan geologi
    1833 – Berlangsung
  9. 1831VEI 2Perkiraan geologi
    1831-02-16 – Berlangsung
  10. 1829VEI 2Teramati
    1829-09-26 – Berlangsung
  11. 1826VEI 2Teramati
    1826-03-01 – Berlangsung
    East flank (Riso Patrón)
  12. 1822VEI ?Perkiraan geologi
    1822 – Berlangsung
  13. 1788VEI ?Perkiraan geologi
    1788 – Berlangsung

Tautan eksternal

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