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Jayu Quta (
Aymara ''jayu'' salt, ''quta'' lake, "salt lake", also spelled ''Jayo Khota, Jayu Khota, Jayu Kkota'') is a
maar
A maar is a broad, low-relief volcanic crater caused by a phreatomagmatic eruption (an explosion which occurs when groundwater comes into contact with hot lava or magma). A maar characteristically fills with water to form a relatively shallow ...
partially filled with water, in the
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 ...
n
Altiplano, north of the
Salar de Uyuni
Salar de Uyuni (or "Salar de Tunupa") is the world's largest salt flat, or playa, at over in area. It is in the Daniel Campos Province in Potosí in southwest Bolivia, near the crest of the Andes at an elevation of above sea level.
The Sal ...
and east of the
Salar de Coipasa
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Lago Coipasa or Salar de Coipasa is a lake in Sabaya Province, Oruro Department, Bolivia. At an elevation of 3657 m, its surface area is 806 km². It is on the western part of Altiplano, 20 km north of Salar de Uyuni and south ...
. It is situated in the
Oruro Department,
Ladislao Cabrera Province, Salinas de Garci Mendoza Municipality, Villa Esperanza Canton. It was originally misidentified as a meteorite impact crater.
A smaller maar, named Ñiq'i Quta ("mud lake", ''Nekhe Khota, Nekhe Kkota''), is located southwest of Jayu Quta.
Volcanic activity of
phreatomagmatic
Phreatomagmatic eruptions are volcanic eruptions resulting from interaction between magma and water. They differ from exclusively magmatic eruptions and phreatic eruptions. Unlike phreatic eruptions, the products of phreatomagmatic eruptions cont ...
nature formed the
maar
A maar is a broad, low-relief volcanic crater caused by a phreatomagmatic eruption (an explosion which occurs when groundwater comes into contact with hot lava or magma). A maar characteristically fills with water to form a relatively shallow ...
s, probably during the
Holocene. During this activity,
basalt-
trachyandesite rocks were ejected, including
xenoliths consisting of
granite.
These maars belong to a group of volcanic centres in the
Altiplano. These centres mostly consist of
lava flow
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 und ...
s of trachyandesitic to
dacitic composition.
The maars appear to form a lineament with
Ch'iyar Qullu.
However, in terms of isotope ratios and geochemistry the eruption products of the maars bear no resemblance to these at Chiyar Qullu.
Potassium-argon dating has yielded an age of less than 128,000 years ago on a
lava bomb on Ñiq'i Quta.
See also
*
List of volcanoes in Bolivia
*
Tunupa
Tunupa is a dormant volcano in the Potosí Department of southwestern Bolivia.
It stands on the northern side of the Salar de Uyuni at an elevation of on the Bolivian Altiplano. Tunupa was active in the Pleistocene, with most of the volcano cons ...
References
External links
Salinas de Garci Mendoza Municipality: population data and map
Maars of Bolivia
Volcanoes of Oruro Department
Lakes of Oruro Department
{{Oruro-geo-stub