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Udokan Plateau

Medan gunung api · Russia · 2180 m

The Udokan Plateau volcanic field extends across 3,000 km2 around 400 km ENE of the northern tip of Lake Baikal, with a small part of the field that contains Holocene features shown in this July 2019 Planet Labs satellite image monthly mosaic (N is at the top; this image is approximately 16.5 km across). The round, 950-m-diameter lava dome in the center of this image is just SW of the Aku crater. Chepe cone is in the NW corner, and between them is Dolinnyi cone.
The Udokan Plateau volcanic field extends across 3,000 km2 around 400 km ENE of the northern tip of Lake Baikal, with a small part of the field that contains Holocene features shown in this July 2019 Planet Labs satellite image monthly mosaic (N is at the top; this image is approximately 16.5 km across). The round, 950-m-diameter lava dome in the center of this image is just SW of the Aku crater. Chepe cone is in the NW corner, and between them is Dolinnyi cone. · Foto: Satellite image courtesy of Planet Labs Inc., 2019 (https://www.planet.com/). · Wikimedia Commons
Tipe
Medan gunung api
Negara
Russia
Wilayah
Eastern Asia Volcanic Regions / Baikal Rift Volcanic Province
Ketinggian
2180 m
Koordinat
56.280, 117.770
Letusan terakhir
-220
Kondisi tektonik
Rift zone / Continental crust (> 25 km)
Bentuk lahan
Cluster
Batuan utama
Trachybasalt / Tephrite Basanite
Ringkasan geologi

The Udokan Plateau volcanic field occupies a broad area about 400 km ENE of the northern tip of Lake Baikal. Quaternary volcanism here represents the latest manifestation of activity dating back to the Miocene covering an area of 3,000 km2 at the eastern margin of the Baikal Rift System. Late Pleistocene to Holocene volcanic centers are concentrated along three major lineaments, and many eruptions were localized along fissures trending NW-SE and NE-SW. Dated Holocene volcanic centers are located on a 20-km-long line at the SW side of the field, but Holocene cinder cones also occur in the NE Udokan Plateau. Seismic activity has been recorded at depths of 15-20 km beneath some of the cones. Basaltic cinder cones dominate the field, but basal trachytic ignimbrites are also overlain by lava domes and flows, and trachytic maars were formed during the final stages of activity. The latest dated eruption took place at Chepe volcano about 2,200 years ago.

Ringkasan Wikipedia

Ringkasan Inggris

The Udokan Plateau is a volcanic field in Transbaikalia, Russia. It covers a surface area of 3,000 square kilometres (1,200 sq mi) northeast of Lake Baikal in North Asia. Volcanism in the Udokan Plateau included both basaltic lava flows and later individual volcanic cones. Volcanism commenced in the Miocene and continued on into the Holocene.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
7290 BCE~7054 BCE · 1 letusan · VEI maks. ?6347 BCE~6112 BCE · 1 letusan · VEI maks. ?6112 BCE~5876 BCE · 1 letusan · VEI maks. ?2812 BCE~2577 BCE · 1 letusan · VEI maks. ?456 BCE~220 BCE · 1 letusan · VEI maks. ?7290 BCE5640 BCE3755 BCE2105 BCE456 BCE

Garis waktu rinci

  1. 220 SM (±50 tahun)VEI ?Perkiraan geologi
    BCE 220 – Berlangsung
    Chepe
  2. 2670 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 2670 – Berlangsung
    Aku
  3. 5990 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 5990 – Berlangsung
    Dolinnyi
  4. 6210 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 6210 – Berlangsung
    Khangura
  5. 7290 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 7290 – Berlangsung
    Sini

Tautan eksternal

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