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Mount Zaō

Zaozan [Zaosan]

Gunung api kompleks · Japan · 1841 m

Okama crater of Goryudake within the Zaozan volcanic complex is shown here from the E. The 360-m-wide lake is about 60 m deep and is the site of many recorded eruptions. White mud deposited on the lake floor is periodically disturbed by gas emission, changing the color of the water.
Okama crater of Goryudake within the Zaozan volcanic complex is shown here from the E. The 360-m-wide lake is about 60 m deep and is the site of many recorded eruptions. White mud deposited on the lake floor is periodically disturbed by gas emission, changing the color of the water. · Foto: Copyrighted photo by Yoshihisa Kawanabe (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/). · Wikimedia Commons
Tipe
Gunung api kompleks
Negara
Japan
Wilayah
Northwestern Pacific Volcanic Regions / Northeast Japan Volcanic Arc
Ketinggian
1841 m
Koordinat
38.144, 140.440
Letusan terakhir
1940
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

The Zaozan (or Zaosan) volcano group consists of a complex cluster of stratovolcanoes in north-central Honshu about 40 km W of Sendai Bay. The Pleistocene Ryuzan volcano forms the western group (Nishi-Zao), and Byobu and Fubo volcanoes form the southern group (Minami-Zao). The complex was constructed over granitic basement rocks thus has a relatively small volume. The 7 km3 Zaozan volcano proper forms the central group (Chuo-Zao), a complex topped by several lava domes and the Goshikidake tuff cone, aligned NW-SE. Several episodes of edifice collapse produced debris avalanches during the Pleistocene. Goshikidake contains the active Okama crater, filled with a colorful, strongly acidic crater lake; it has been the source of most of the frequent eruptions recorded since the 8th century CE.

Ringkasan Wikipedia

Ringkasan Inggris

The Zaō Mountains , commonly called Mount Zaō, are a complex cluster of stratovolcanoes on the border between Yamagata Prefecture and Miyagi Prefecture in Japan. The central volcano includes several lava domes and a tuff cone, Goshiki-dake, which contains a crater lake named "Okama". Also known as the "Five Color Pond" because it changes color depending on the weather, it lies in a crater formed by a volcanic eruption in the 1720s. The lake is 360 metres (1,200 ft) in diameter and 60 m (200 ft) deep, and is one of the main tourist attractions in the area.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
7600 BCE~7282 BCE · 1 letusan · VEI maks. ?5692 BCE~5374 BCE · 2 letusan · VEI maks. ?4420 BCE~4102 BCE · 1 letusan · VEI maks. ?4102 BCE~3784 BCE · 1 letusan · VEI maks. ?3466 BCE~3148 BCE · 1 letusan · VEI maks. ?2830 BCE~2512 BCE · 1 letusan · VEI maks. ?2512 BCE~2194 BCE · 1 letusan · VEI maks. ?2194 BCE~1876 BCE · 1 letusan · VEI maks. ?1876 BCE~1558 BCE · 1 letusan · VEI maks. ?32~350 · 1 letusan · VEI maks. 4668~986 · 2 letusan · VEI maks. 3986~1304 · 3 letusan · VEI maks. 31304~1622 · 4 letusan · VEI maks. 31622~1940 · 31 letusan · VEI maks. 37600 BCE5374 BCE2830 BCE604 BCE1622

Garis waktu rinci

  1. 1940VEI 1Teramati
    1940-05-18 – 1940-05-18
    Okama
  2. 1939VEI 1Perkiraan geologi
    1939-07 – Berlangsung
    Okama
  3. 1927VEI 1Perkiraan geologi
    1927 – Berlangsung
    Okama
  4. 1905VEI 1Teramati
    1905 – Berlangsung
    Okama
  5. 1897VEI 1Perkiraan geologi
    1897-01-14 – 1897-01-14
    Okama
  6. 1896VEI 1Teramati
    1896-03-08 – 1896-03-08
    Okama
  7. 1896VEI 1Perkiraan geologi
    1896-09-01 – Berlangsung
    Okama
  8. 1895VEI 1Teramati
    1895-02-15 – 1895-03-22
    Okama
  9. 1895VEI 2Teramati
    1895-08-22 – 1895-09-28
    Okama
  10. 1894VEI 2Teramati
    1894-07-03 – 1894-07-03
    Okama
  11. 1890VEI 1Perkiraan geologi
    1890 – Berlangsung
    Okama
  12. 1873VEI 1Teramati
    1873-08 – 1873-09
    Okama
  13. 1867VEI 2Teramati
    1867-10-21 – Berlangsung
    Okama
  14. 1833VEI 2Teramati
    1833 – Berlangsung
    Okama
  15. 1831VEI 2Teramati
    1831-11-22 – Berlangsung
    Okama
  16. 1830VEI 2Teramati
    1830 – Berlangsung
    Okama
  17. 1822VEI ?Teramati
    1822-05-01 – Berlangsung
  18. 1821VEI 2Teramati
    1821-01-27 – 1821-05-01
    Okama
  19. 1809VEI 2Teramati
    1809-06-12 – 1809-12-29
    Okama
  20. 1806VEI 2Teramati
    1806-07-12 – Berlangsung
    Okama
  21. 1804VEI 2Teramati
    1804-05 – Berlangsung
    Okama
  22. 1796VEI 2Teramati
    1796-03-24 – Berlangsung
    Okama
  23. 1794VEI 2Teramati
    1794-09-22 – 1794-12
    SE side of Okama
  24. 1694VEI 2Teramati
    1694-05-29 – 1694-08-30
    Okama
  25. 1670VEI 2Teramati
    1670-04-26 – 1670-09-26
    Okama
  26. 1669VEI 3Teramati
    1669 – Berlangsung
    Okama
  27. 1668VEI 2Teramati
    1668-08 – Berlangsung
    Okama
  28. 1641VEI 2Teramati
    1641 – Berlangsung
    Okama
  29. 1630VEI 2Teramati
    1630 – Berlangsung
    Okama
  30. 1623VEI 3Teramati
    1623-05-15 – 1624-11-15
    Okama
  31. 1622VEI 2Teramati
    1622 – Berlangsung
    Okama
  32. 1620VEI 2Teramati
    1620 – Berlangsung
    Okama
  33. 1400 (±100 tahun)VEI 3Perkiraan geologi
    1400 – Berlangsung
    Goshiki-dake area
  34. 1350VEI 2Perkiraan geologi
    1350 – Berlangsung
    Okama
  35. 1331VEI 2Perkiraan geologi
    1331 – 1333
    Okama
  36. 1230VEI 2Teramati
    1230-11-29 – Berlangsung
    Okama
  37. 1227VEI 3Teramati
    1227-10 – Berlangsung
    Okama
  38. 1183VEI 2Teramati
    1183-05-28 – Berlangsung
    Okama
  39. 884VEI 3Teramati
    884 – Berlangsung
    Okama
  40. 773VEI ?Perkiraan geologi
    773-11 – Berlangsung
    Okama
  41. 300 (±200 tahun)VEI 4Perkiraan geologi
    300 – Berlangsung
    Goshiki-dake area
  42. 1600 SMVEI ?Perkiraan geologi
    BCE 1600 – Berlangsung
    Goshiki-dake
  43. 2000 SM (±500 tahun)VEI ?Perkiraan geologi
    BCE 2000 – Berlangsung
    Goshiki-dake
  44. 2300 SM (±75 tahun)VEI ?Perkiraan geologi
    BCE 2300 – Berlangsung
    Goshiki-dake area
  45. 2600 SM (±200 tahun)VEI ?Perkiraan geologi
    BCE 2600 – Berlangsung
    Goshiki-dake area
  46. 3350 SM (±50 tahun)VEI ?Perkiraan geologi
    BCE 3350 – Berlangsung
    Goshiki-dake area
  47. 3850 SM (±200 tahun)VEI ?Perkiraan geologi
    BCE 3850 – Berlangsung
    Goshiki-dake area
  48. 4150 SM (±200 tahun)VEI ?Perkiraan geologi
    BCE 4150 – Berlangsung
    Goshiki-dake area
  49. 5500 SMVEI ?Perkiraan geologi
    BCE 5500 – Berlangsung
    Goshiki-dake area
  50. 5600 SMVEI ?Perkiraan geologi
    BCE 5600 – Berlangsung
    Goshiki-dake
  51. 7600 SMVEI ?Perkiraan geologi
    BCE 7600 – Berlangsung
    Goshiki-dake area

Tautan eksternal

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