Risco Plateado

Risco Plateado is a stratovolcano in Argentina, with an elevation of 4,999 metres (16,401 ft) above sea level. With a prominence of 1,602 metres (5,256 ft), it is one of the many ultra prominent peaks in the Andes. The equilibrium line altitude of the volcano lies at an altitude of 3,800 metres (12,500 ft).[2]

Risco Plateado
Risco Plateado
Location in Argentina
Highest point
Elevation4,999 m (16,401 ft) [1]
Prominence1,602 m (5,256 ft) [1]
ListingUltra
Coordinates34°55′06″S 69°59′39″W [1]
Geography
LocationArgentina
Parent rangeAndes
Geology
Mountain typeStratovolcano
Last eruptionUnknown

This stratovolcano has a 4 kilometres (2.5 mi) wide caldera with eruptive centres on its northeastern and southwestern margins. These centres are aligned on a northeast-trending fracture that also includes a monogenetic centre 8 kilometres (5.0 mi) northeast of the caldera (GVP). The volcano has produced long lava flows, although the more proximal parts of the flow were later degraded by glaciation.[3] The volcano has been assigned a Holocene age given the young appearance of some of its eruption products.[4] The volcanism was at first dacitic and later changed to basaltic andesite (GVP).

See also

References
  1. "Argentina and Chile, Central Ultra Prominences". Peaklist.org. Retrieved 2013-07-17.
  2. Singh, Ram Bali (1992). Dynamics of Mountain Geosystems. APH Publishing. p. 380. ISBN 9788170244721.
  3. Sruoga, Patricia; Rubinstein, Nora A.; Etcheverría, Mariela P.; Cegarra, Marcelo; Kay, Suzanne M.; Singer, Brad; Lee, James (September 2008). "Estadío inicial del arco volcánico neógeno en la Cordillera Principal de Mendoza (35° S)". Revista de la Asociación Geológica Argentina. 63 (3): 454–469. ISSN 0004-4822.
  4. Fontijn, Karen; Lachowycz, Stefan M.; Rawson, Harriet; Pyle, David M.; Mather, Tamsin A.; Naranjo, José A.; Moreno-Roa, Hugo (2014-04-01). "Late Quaternary tephrostratigraphy of southern Chile and Argentina". Quaternary Science Reviews. 89: 75. doi:10.1016/j.quascirev.2014.02.007.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.