Cerro Pantoja
Encyclopedia
Cerro Pantoja, also spelled as Cerro Pantojo, is an extint stratovolcano
on the border of Argentina
and Chile
. It lies immediately south of Cardenal Antonio Samoré Pass
and its characteristic spire-shaped summit is an eroded volcanic plug
.
Stratovolcano
A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic, explosive eruptions...
on the border of Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
and Chile
Chile
Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...
. It lies immediately south of Cardenal Antonio Samoré Pass
Cardenal Antonio Samoré Pass
Cardenal Antonio Samoré Pass it is one of the main mountain pass through the southern Andes along the border between Argentina and Chile.Together with Paso Libertadores, it is one of the easiest of the Argentina-Chile passes, and one of the few with asphalted roads in the region...
and its characteristic spire-shaped summit is an eroded volcanic plug
Volcanic plug
A volcanic plug, also called a volcanic neck or lava neck, is a volcanic landform created when magma hardens within a vent on an active volcano. When forming, a plug can cause an extreme build-up of pressure if volatile-charged magma is trapped beneath it, and this can sometimes lead to an...
.