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Qal'eh Hasan Ali Volcano | John Seach
Kerman Province, Iran
29.40 N, 57.57 E
unknown elevation
Maars
Qal'eh Hasan Ali Volcano is located in SE Iran. The volcano contains 14 maars from 150 to 1200 m in diameter.
Great crater is circular, 1200 m in diameter and has a depth of 200-300 m. The other craters have diameters from 150 m to 1000 m and depths up to 80 m.
The maars are formed in eruptions where gas dominated over the supply of magma to the surface.
Further reading
Graettinger, A.H., 2018. Trends in maar crater size and shape using the global Maar Volcano Location and Shape (MaarVLS) database. Journal of Volcanology and Geothermal Research, 357, pp.1-13.
Pang, K.N., Chung, S.L., Zarrinkoub, M.H., Wang, F., Kamenetsky, V.S. and Lee, H.Y., 2015. Quaternary high-Mg ultrapotassic rocks from the Qal’eh Hasan Ali maars, southeastern Iran: petrogenesis and geodynamic implications. Contributions to Mineralogy and Petrology, 170(3), p.27.
Milton, D.J., 1977. Qal’eh hasan ali maars, central Iran. Bulletin Volcanologique, 40(3), pp.201-208.
Qal'eh Hasan Ali Volcano Eruptions
Eruptions 5000-50,000 years ago.