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Wikipedia:Today's featured article/requests/Cerro Blanco (volcano)

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Cerro Blanco (volcano)

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This is the archived discussion of the TFAR nomination for the article below. Subsequent comments should be made on the appropriate discussion page (such as Wikipedia talk:Today's featured article/requests). Please do not modify this page.

The result was: scheduled for Wikipedia:Today's featured article/January 21, 2023 by Jimfbleak - talk to me? 15:05, 13 December 2022 (UTC)[reply]

Satellite image of the Cerro Blanco
Satellite image of the Cerro Blanco

The Cerro Blanco is a caldera in the Andes, located in Argentina's Catamarca Province. Part of the Andes Central Volcanic Zone, it is a volcano collapse structure located at an altitude of 4,670 metres (15,320 ft) in a depression. It has been active for the last eight million years and its eruptions have created several ignimbrites. An eruption 73,000 years ago formed the Campo de la Piedra Pómez ignimbrite layer, while another eruption in 2,300 ± 160 BCE became the largest volcanic eruption of the Central Andes, and reached the highest level in the Volcanic Explosivity Index, ejecting an estimated 170 cubic kilometres (41 cu mi) of tephra. This eruption led to the formation of the most recent caldera, as well as thick ignimbrite layers. However, the Cerro Blanco has been dormant since then, although some deformation and geothermal activity have been recorded. The volcano is also known for giant ripple marks that have formed on its ignimbrite fields. (Full article...)