Sierra Velluda
| Sierra Velluda | |
|---|---|
Ultra | |
| Coordinates | 37°27′48″S 71°24′57″W / 37.46333°S 71.41583°W[2] |
| Geography | |
  Sierra Velluda | |
| Parent range | Andes |
Sierra Velluda is a massive Pleistocene stratovolcano located immediately southwest of the Antuco Volcano, in the
Bío Bío Region of Chile. The heavily glaciated mountain has two main summits and is the tallest mountain in Laguna del Laja National Park
.
Sierra Velluda was formed in two stages. The first stage occurred 495,000 years ago and is formed by about 1.5 kilometres (0.93 mi) of
lava flows, with sporadic pyroclastic flows. The second is dated to 381,000 years ago and is made out of 3 kilometres (1.9 mi) breccia and lava. Subsequently, glacial erosion exposed the older layers.[3]
See also
- List of Ultras of South America
References
- . Retrieved 2007-02-04.
- ^ a b "Argentina and Chile, Central Ultra-Prominences". Peaklist.org. Retrieved 2014-08-16.
- ISSN 1944-9194.
 | This Biobío Region location article is a stub. You can help Wikipedia by expanding it. |