Ora Caldera Explained

The Ora Caldera is a Permian supervolcano in the Southern Alps of northern Italy.^[1] This 42adj=midNaNadj=mid and 40adj=midNaNadj=mid caldera was formed by a supereruption 277–274 million years ago that produced more than 1000km3 of rhyodacitic-rhyolitic ignimbrite.^{[1] [2] [3]} The ignimbrite from this eruption forms the 10to Ora Formation, which represents the youngest eruptive unit of the Athesian Volcanic Group.^{[1] [3]}

See also

• List of volcanoes in Italy

Notes and References

1. The eruption, pyroclastic flow behaviour, and caldera in-filling processes of the extremely large volume (> 1290 km³), intra- to extra-caldera, Permian Ora (Ignimbrite) Formation, Southern Alps, Italy. 2013 . 10.1016/j.jvolgeores.2013.08.012 . 2022-06-29 . Willcock . M.A.W. . Cas . R.A.F. . Giordano . G. . Morelli . C. . Journal of Volcanology and Geothermal Research . 265 . 102–126 . 2013JVGR..265..102W .
2. Web site: The eruption, pyroclastic flow behaviour, and caldera infilling processes of the large volume (>1000 km3), Permian Ora (Ignimbrite) Formation (Italy). 2022-06-29.
3. Web site: Ora Caldera. 2022-06-29.