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Porak

Campo vulcanico · Armenia-Azerbaijan · 3029 m

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. · Foto: Photo by Jim Luhr, 2004 (Smithsonian Institution). · Wikimedia Commons
Tipo
Campo vulcanico
Paese
Armenia-Azerbaijan
Regione
Arabia-Central Asia Volcanic Regions / Caucasus Volcanic Province
Altitudine
3029 m
Coordinate
40.028, 45.740
Ultima eruzione
-778
Contesto tettonico
Intraplate / Continental crust (> 25 km)
Forma vulcanica
Cluster
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

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.

Sintesi da Wikipedia

Il Porak è uno stratovulcano che si trova nella cresta vulcanica del monte Vardenis, circa 20 km a sud-est del Lago Sevan al confine tra Armenia e Azerbaigian.

Wikipedia · CC BY-SA · Leggi l'articolo completo

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
4510 BCE~4312 BCE · 1 eruzioni · VEI max. ?938 BCE~740 BCE · 2 eruzioni · VEI max. ?4510 BCE3518 BCE2724 BCE1732 BCE938 BCE

Cronologia dettagliata

  1. 740 a.C. (±2 anni)VEI ?Stima geologica
    BCE 740 – In corso
  2. 778 a.C. (±5 anni)VEI ?Stima geologica
    BCE 778 – In corso
    SW flank
  3. 4510 a.C. (±300 anni)VEI ?Stima geologica
    BCE 4510 – In corso

Link esterni

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.