Porak
Campo vulcanico · Armenia-Azerbaijan · 3029 m

- 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.
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Storia delle eruzioni
Cronologia dettagliata
- 740 a.C. (±2 anni)VEI ?Stima geologicaBCE 740 – In corso
- 778 a.C. (±5 anni)VEI ?Stima geologicaBCE 778 – In corsoSW flank
- 4510 a.C. (±300 anni)VEI ?Stima geologicaBCE 4510 – In corso
Link esterni
⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.