Patilla Pata is a
stratovolcano
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and per ...
in the
Oruro Department
Oruro (; Quechua: ''Uru Uru''; Aymara: ''Ururu'') is a department of Bolivia, with an area of . Its capital is the city of Oruro. According to the 2012 census, the Oruro department had a population of 494,178.
Provinces of Oruro
The departme ...
in
Bolivia
, image_flag = Bandera de Bolivia (Estado).svg
, flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center
, flag_alt2 = 7 × 7 square p ...
. It is situated in the
Sajama Province
Sajama is a province in the northwestern parts of the Bolivian Oruro Department.
Location
''Sajama'' province is one of the sixteen provinces in the Oruro Department. It is located between 17° 39' and 18° 39' South and between 67° 38' and 68° ...
, in the west of the Curahuara de Carangas Municipality, at the border with
Chile
Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
. Patilla Pata lies south-west of the mountain
Jisk'a Kunturiri
Jisk'a Kunturiri (Aymara ''jisk'a'' little, ''kunturi'' condor, ''-ri'' a suffix, ''Kunturiri'' the name of a neighboring mountain, "little Kunturiri", Hispanicized spelling ''Jiskha Condoriri'') is a mountain in the Andes of Bolivia which rises ...
, north-east of the lake Q'asiri Quta ''(Khasiri Kkota)'' and the mountain
Qullqi Warani, west of the little lake Sura Pata, south-east of the mountains
Laram Q'awa,
Kunturiri and Milluni and south of the little lake named
Ch'iyar Quta.
The river Junt'uma K'uchu (Aymara ''junt'u'' warm, hot, ''uma'' water, ''k'uchu'' corner, "warm water corner", ''Junthuma Khuchu'') originates south of Patilla Pata. It flows to the south-east as a right affluent of the Sajama River.
[ (unnamed, south of ''Chiar Kkota'')]
The date of its last eruption is unclear, but it is unlikely to be during the Holocene
The Holocene ( ) is the current geological epoch. It began approximately 11,650 cal years Before Present (), after the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene togethe ...
as the mountain is heavily glaciated. The composition of the volcano is largely andesitic
Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predomina ...
, but there are also a number of basaltic
Basalt (; ) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90% of a ...
lava
Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or un ...
flows.
See also
* Jach'a Kunturiri
* Sajama
* List of volcanoes in Bolivia
The country of Bolivia hosts numerous activeIn vulcanology and this article active volcanoes are those with Holocene eruption, that means eruptions in the last 10,000 years. and extinct volcanoes across its territory. The active volcanoes are i ...
References
Sources
*
Stratovolcanoes of Bolivia
Subduction volcanoes
Polygenetic volcanoes
Volcanoes of Oruro Department
Volcanoes of La Paz Department (Bolivia)
Pleistocene stratovolcanoes
{{Oruro-geo-stub