Tanzania · Stratovolkan
Ol Doinyo Lengai
Lengai, Ol Doinyo
- Tipe
- Stratovolkan
- Ketinggian
- 2962 m
- Letusan terakhir
- 2026
- Tipe
- Stratovolkan
- Negara
- Tanzania
- Wilayah
- Afrika Timur / Kenyan Rift Volcanic Province
- Ketinggian
- 2962 m
- Koordinat
- -2.764, 35.914
- Letusan terakhir
- 2026
- Kondisi tektonik
- Zona rift / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Foidit
Ringkasan geologi
The symmetrical Ol Doinyo Lengai is the only volcano known to have erupted carbonatite tephras and lavas in historical time. The prominent stratovolcano, known to the Maasai as "The Mountain of God," rises abruptly above the broad plain south of Lake Natron in the Gregory Rift Valley. The cone-building stage ended about 15,000 years ago and was followed by periodic ejection of natrocarbonatitic and nephelinite tephra during the Holocene. Historical eruptions have consisted of smaller tephra ejections and emission of numerous natrocarbonatitic lava flows on the floor of the summit crater and occasionally down the upper flanks. The depth and morphology of the northern crater have changed dramatically during the course of historical eruptions, ranging from steep crater walls about 200 m deep in the mid-20th century to shallow platforms mostly filling the crater. Long-term lava effusion in the summit crater beginning in 1983 had by the turn of the century mostly filled the northern crater; by late 1998 lava had begun overflowing the crater rim.
Riwayat letusan
27 tercatatGlosariumGaris waktu rinci
- 2017VEI 0Teramati2017-04-09 – 2026-03-31North Crater
- 2016VEI 0Teramati2016-09-21 – 2016-10-13North Crater
- 2015VEI 0Teramati2015-06-20 – 2015-08-24North Crater
- 2011VEI 0Teramati2011-06-22 – 2014-07-15North Crater
- 2007VEI 3Teramati2007-06-16 – 2010-10-09North Crater
- 1994VEI 1Teramati1994-09-18 – 2006-07-16North Crater
- 1983VEI 2Teramati1983-01-01 – 1993-09-24North Crater
- 1969VEI ?Metode tidak dinyatakan1969-07-16 – akhir tidak diketahui
- 1967VEI 3Teramati1967-07-08 – 1967-09-04North Crater
- 1960VEI 3Teramati1960-03-16 – 1966-11-28North Crater
- 1958VEI 1Teramati1958-02-06 – akhir tidak diketahuiNorth Crater
- 1955VEI 2Teramati1955-01-19 – 1955-01-20North Crater
- 1954VEI 2Teramati1954-07-26 – 1954-09-16North Crater
- 1940VEI 3Teramati1940-07-24 – 1941-02-16North Crater
- 1926VEI 2Teramati1926-07-02 – akhir tidak diketahuiNorth Crater
- 1921VEI 2Teramati1921-02-16 – akhir tidak diketahuiNorth Crater
- 1916VEI 3Teramati1916-12-01 – 1917-06-16North Crater
- 1914VEI 0Teramati1914-08-15 – 1915-07-02North Crater
- 1913VEI 0Teramati1913-07-02 – akhir tidak diketahui
- 1907 (±3 tahun)VEI 0Teramati1907-07-02 – 1910-08-04North Crater
- 1904VEI 0Teramati1904-07-02 – akhir tidak diketahuiNorth Crater
- 1882VEI 2Teramati1882-07-02 – 1883-07-02North Crater
- 1880VEI 2Teramati1880-12-16 – akhir tidak diketahuiNorth Crater
- 1350VEI ?Perkiraan geologi1350 – akhir tidak diketahui
- 700VEI ?Perkiraan geologi700 – akhir tidak diketahui
- 50 SMVEI ?Perkiraan geologi50 SM – akhir tidak diketahui
- 1550 SM (±1500 tahun)VEI ?Perkiraan geologi1550 SM – akhir tidak diketahui
Gunung api terdekat
Tautan eksternal
⚠ Untuk referensi saja. Bukan untuk tanggap darurat.