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Porak

火山原 · Armenia-Azerbaijan · 3029m

A lava flow extends across the foreground from a cone within the Porak volcanic field, located along the Vardeniss volcanic ridge about 20 km SE of Lake Sevan. The volcanic field straddles the Armenia/Azerbaijan border, and lava flows extend into both countries. This lava flow is the youngest of the volcanic field. Another flow from the same cone (located in Armenia) flowed into Lake Alagyol in Azerbaijan. Archaeological and historical evidence indicates several eruptions occurred during the Holocene.
A lava flow extends across the foreground from a cone within the Porak volcanic field, located along the Vardeniss volcanic ridge about 20 km SE of Lake Sevan. The volcanic field straddles the Armenia/Azerbaijan border, and lava flows extend into both countries. This lava flow is the youngest of the volcanic field. Another flow from the same cone (located in Armenia) flowed into Lake Alagyol in Azerbaijan. Archaeological and historical evidence indicates several eruptions occurred during the Holocene. · 写真: Photo by Jim Luhr, 2004 (Smithsonian Institution). · Wikimedia Commons
タイプ
火山原
Armenia-Azerbaijan
地域
Arabia-Central Asia Volcanic Regions / Caucasus Volcanic Province
標高
3029m
座標
40.028, 45.740
最終噴火
-778年
テクトニクス環境
Intraplate / Continental crust (> 25 km)
火山地形
Cluster
主要岩石
Andesite / Basaltic Andesite
地質学的概要

The mid-Pleistocene Porak volcano lies in the Vardenis volcanic highland about 20 km SE of Lake Sevan. The volcanic field straddles the Armenia/Azerbaijan border, and lava flows extend into both countries. The flanks contain 10 satellitic cones and fissure vents. It was constructed along the active Pambak-Sevan strike-slip fault, which has bisected the mid-Pleistocene Khonarassar volcano, separating its two halves by about 800 m. Two large lava flows traveled up to 21 km north and NW, and fresh-looking lava flows form peninsulas extending into Lake Alagyol. Fifth century BCE petroglyphs were interpreted to depict volcanic eruptions (Karakhanian et al., 2002). Porak is referred to in a cuneiform inscription as Mount Bamni, and stratigraphic and archeological evidence indicates that an explosive eruption also producing a lava flow occurred at the time of a military battle dated to 782-773 BCE.

Wikipedia の要約

英語版の要約

Porak or Akharbakhar is a stratovolcano located in the Vardenis volcanic ridge. It lies about 20 km (12 mi) southeast of Lake Sevan and the volcanic field spans the border between Armenia and Azerbaijan with lava flows running into both countries. Ten satellite cones and fissure vents lie on the flanks of the volcano.

Wikipedia · CC BY-SA · 記事全文を読む

噴火履歴

概要 (VEI時系列)
バーをクリックすると個別の噴火が表示されます
4510 BCE~4312 BCE · 1件 · 最大 VEI ?938 BCE~740 BCE · 2件 · 最大 VEI ?4510 BCE3518 BCE2724 BCE1732 BCE938 BCE

詳細タイムライン

  1. 紀元前 740年 (±2年)VEI ?地質学的推定
    BCE 740 ~ 進行中
  2. 紀元前 778年 (±5年)VEI ?地質学的推定
    BCE 778 ~ 進行中
    SW flank
  3. 紀元前 4510年 (±300年)VEI ?地質学的推定
    BCE 4510 ~ 進行中

外部リンク

⚠ 参考情報です。緊急対応には使用しないでください。