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Ekuador · Kaldera

Chacana

Tipe
Kaldera
Ketinggian
4643 m
Letusan terakhir
1773
The floor of the massive Chacana caldera is seen here in the foreground, looking SE with glacier-covered Antisana volcano in the distance.  Chacana is a 32 x 24 km caldera complex of Pliocene-Holocene age.  Its outer flanks extend over 50 km, making it one of the largest rhyolitic centers of the northern Andes.  Numerous lava domes were constructed within the caldera, which has been the source of frequent Holocene explosive eruptions.  Dacitic lava flows were erupted during the 18th century and numerous hot springs are found on the caldera floor.
The floor of the massive Chacana caldera is seen here in the foreground, looking SE with glacier-covered Antisana volcano in the distance. Chacana is a 32 x 24 km caldera complex of Pliocene-Holocene age. Its outer flanks extend over 50 km, making it one of the largest rhyolitic centers of the northern Andes. Numerous lava domes were constructed within the caldera, which has been the source of frequent Holocene explosive eruptions. Dacitic lava flows were erupted during the 18th century and numerous hot springs are found on the caldera floor. · Foto: Photo by Minard Hall, 1976 (Escuela Politécnica Nacional, Quito).
Tipe
Kaldera
Negara
Ekuador
Wilayah
Amerika Selatan / Northern Andean Volcanic Arc
Ketinggian
4643 m
Koordinat
-0.375, -78.250
Letusan terakhir
1773
Kondisi tektonik
Zona subduksi / Kerak benua (> 25 km)
Bentuk lahan
Kaldera
Batuan utama
Riolit

Ringkasan geologi

Teks asli bahasa Inggris

Chacana is a massive, eroded caldera complex of Pliocene-Holocene age that forms one of the largest rhyolitic centers of the northern Andes.

Kutipan dari Global Volcanism Program, Smithsonian Institution · Baca ringkasan lengkap di GVP →

Ringkasan Wikipedia

Ringkasan Inggris

Chacana is a large 32-km long - 18–24 km wide caldera that has erupted in historical times.

Wikipedia · CC BY-SA · Lanjutkan membaca di Wikipedia bahasa Inggris →

Riwayat letusan

5 tercatatGlosarium

Ringkasan catatan

Letusan terkonfirmasi
5
Letusan tidak pasti
0
Rentang catatan terkonfirmasi
8050 SM – 1773
Letusan terkonfirmasi terbesar
VEI 0 (1773, yang terbaru dari 2)
Letusan terkonfirmasi sejak 1900
0
Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu · Gunakan tombol panah untuk berpindah batang, Enter untuk membuka
8050 SM~7723 SM · 1 letusan · VEI maks. ?1829 SM~1501 SM · 1 letusan · VEI maks. ?192 SM~136 · 1 letusan · VEI maks. ?1446~1773 · 2 letusan · VEI maks. 08050 SM5758 SM3138 SM846 SM1446

Garis waktu rinci

  1. 1773VEI 0Teramati
    1773 – akhir tidak diketahui
    South part of caldera
  2. 1760VEI 0Teramati
    1760 – akhir tidak diketahui
    SW flank
  3. 50 SMVEI ?Perkiraan geologi
    50 SM – akhir tidak diketahui
  4. 1580 SM (±10 tahun)VEI ?Perkiraan geologi
    1580 SM – akhir tidak diketahui
  5. 8050 SMVEI ?Perkiraan geologi
    8050 SM – akhir tidak diketahui

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Tautan eksternal

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