Qal'eh Hasan Ali

sopka (bez známé erupce za posledních ~12 000 let), Iran, Arabia-Central Asia Volcanic Regions

Kde

Iran, Arabia-Central Asia Volcanic Regions

Typ (GVP)

Maar(s)

Nadmořská výška

2 400 m

Poloha

29,375°, 57,550°

The Qal'eh Hasan Ali volcanic field in SE Iran contains 14 maars of late Quaternary age, which were erupted through desert alluvium, granodioritic rocks, and Eocene volcanics in an area several hundred kilometers away from the closest Quaternary volcanoes. The maars, which produced tephritic pyroclastic deposits, have diameters ranging from 150 to 1200 m. The largest, known as Great Crater, is 1.2 km wide and 200-300 m deep. Ar-Ar dating of phlogopite in volcanic bomb samples from Great Crater gave ages of 112-119 ka (Pang and others, 2015).

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.