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Volcán Cerro Machín

Machin

Stratovolkan · Colombia · 2749 m

Two central lava domes of Cerro Machín volcano are seen here from the SW. A 3-km-wide caldera, whose rim is the horizontal change in slope across the center of the photo, opens towards the south. Late-Holocene eruptions produced block-and-ash flows that traveled to the west and south, beyond the caldera. Deposits from some of these eruptions form the eroded slopes in the lower part of the photo along the valley of the Toche River.
Two central lava domes of Cerro Machín volcano are seen here from the SW. A 3-km-wide caldera, whose rim is the horizontal change in slope across the center of the photo, opens towards the south. Late-Holocene eruptions produced block-and-ash flows that traveled to the west and south, beyond the caldera. Deposits from some of these eruptions form the eroded slopes in the lower part of the photo along the valley of the Toche River. · Foto: Photo by José Macías, 1996 (Universidad Autómona de México). · Wikimedia Commons
Tipe
Stratovolkan
Negara
Colombia
Wilayah
South America Volcanic Regions / Northern Andean Volcanic Arc
Ketinggian
2749 m
Koordinat
4.487, -75.389
Letusan terakhir
1180
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Dacite
Ringkasan geologi

The small Cerro Machín stratovolcano lies at the southern end of the Ruiz-Tolima massif about 20 km WNW of the city of Ibagué. A 3-km-wide caldera is breached to the south and contains three forested dacitic lava domes. Voluminous pyroclastic flows traveled up to 40 km away during eruptions in the mid-to-late Holocene, perhaps associated with formation of the caldera. Late-Holocene eruptions produced dacitic block-and-ash flows that traveled through the breach in the caldera rim to the west and south. The latest known eruption of took place about 800 years ago.

Ringkasan Wikipedia

Ringkasan Inggris

Cerro Machín is a stratovolcano located in Tolima Department, Colombia. Considered the most dangerous active volcano of Colombia, Cerro Machin is a volcanic plug that is approximately the same age as the Ruiz-Tolima Massif and has the appearance of being part of that volcanic system.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
3800 BCE~3601 BCE · 1 letusan · VEI maks. ?2804 BCE~2605 BCE · 1 letusan · VEI maks. ?2406 BCE~2206 BCE · 1 letusan · VEI maks. ?2206 BCE~2007 BCE · 1 letusan · VEI maks. ?812 BCE~613 BCE · 1 letusan · VEI maks. ?582~782 · 1 letusan · VEI maks. ?981~1180 · 1 letusan · VEI maks. ?3800 BCE2605 BCE1410 BCE214 BCE981

Garis waktu rinci

  1. 1180 (±150 tahun)VEI ?Perkiraan geologi
    1180 – Berlangsung
  2. 750VEI ?Perkiraan geologi
    750 – Berlangsung
  3. 650 SMVEI ?Perkiraan geologi
    BCE 650 – Berlangsung
  4. 2100 SM (±200 tahun)VEI ?Perkiraan geologi
    BCE 2100 – Berlangsung
  5. 2240 SM (±300 tahun)VEI ?Perkiraan geologi
    BCE 2240 – Berlangsung
  6. 2650 SMVEI ?Perkiraan geologi
    BCE 2650 – Berlangsung
  7. 3800 SM (±150 tahun)VEI ?Perkiraan geologi
    BCE 3800 – Berlangsung

Tautan eksternal

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