Navada Sajama in Sajama national park – Bolivia

Image 1. Sajama National Park, Bolivia/Chile

Nevado Sajama ([neˈβaðo saˈxama]; Aymara: Chak Xaña) is an extinct stratovolcano and the highest peak in Bolivia. The mountain is located in the Oruro Department, Sajama Canton. It is situated in Sajama National Park and is a composite volcano consisting of a stratovolcano on top of several lava domes. It is not clear when it erupted last but it may have been during the Pleistocene or Holocene.

The mountain is covered by an ice cap and Polylepis tarapacana trees occur up to 5,000 metres (16,000 ft) elevation.

https://en.wikipedia.org/wiki/Nevado_Sajama

Gallery:

Geography and geomorphology

Nevado Sajama is in Bolivia’s Oruro Department’s Sajama canton, around 18.6 kilometres (11.6 miles) from the Chilean border. The Cholcani volcano is located south-east of Sajama, while another nearby volcano, Pomerape, has a similar aspect to Sajama. A road runs along the volcano’s southeastern face, and additional roads form a circle around Sajama. The town of Sajama is located on the mountain’s western foothills, with towns in Caripe to the north-east and Lagunas to the south-west, as well as a number of farms.

The Andes mountain range breaks into two branches in Bolivia, divided by the Altiplano, a high plateau of 3,500–4,000 metres (11,500–13,100 feet). The mountain Nevado Sajama is located in Bolivia’s Western Andes and on the western edge of the Altiplano, precisely before the Western Cordillera.

The highest peak in Bolivia, Nevado Sajama, rises 2.2 kilometres (1.4 miles) above the surrounding terrain to a height of 6,542 metres (21,463 feet) (previous estimations put it at 6,572 metres (21,562 feet)). The mountain is characterised by parasitic vents and a coating of lava fragments and volcanic ash below 4,200 metres (13,800 feet). [8] The secondary summits of 5,031 metres (16,506 feet) and 5,161 metres (16,932 feet) west and east-northeast from Sajama are named Cerro Huisalla[11] and Huayna Potosi, respectively….(Paraphrased using Quillbot – Source is https://en.wikipedia.org/wiki/Nevado_Sajama#Geography_and_geomorphology

Geology

The Andes’ Central Volcanic Zone, where volcanism is triggered by the subduction of the Nazca Plate beneath the South.. America Plate, includes Nevado Sajama.  During the Oligocene, changes in the subduction regime led to an upsurge in volcanic activity in the region. Volcanoes in the area range in age from Pleistocene to Miocene, and  grew on top of earlier ignimbrites, with faults controlling the entire volcanic activity. (Paraphrased using Quillbot –https://en.wikipedia.org/wiki/Nevado_Sajama#Geology


Image 1 attribution: by Léo Guellec – Flickr, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=33237899

Source: was last edited on 27 August 2021, at 21:32 (UTC).

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