Chiliques

Source: Wikipedia, the free encyclopedia.
Chiliques
Volcano in Chile
The Chiliques volcano, seen from Laguna Miscanti
Highest point
Elevation5,778 m (18,957 ft)
Coordinates23°35′0″S 67°42′0″W / 23.58333°S 67.70000°W / -23.58333; -67.70000
Geography
LocationChile
Parent rangeAndes
Geology
Mountain typeStratovolcano
Last eruptionUnknown

Chiliques is a stratovolcano located in the Antofagasta Region of Chile.[1]

Chiliques is capped off by a 500 metres (1,600 ft) wide

summit crater, which contains two crater lakes. One of these lakes is found in the northern part and the other east-southeastern part.[2] The volcano is formed by rocks ranging from andesite to dacite; the andesites of the main stratocone building phase contain pyroxene.[3] Together with Tumisa, Leija and Cordón de Puntas Negras it forms a northwest-trending volcano alignment.[4]

The first part of Chiliques to form was a

Lava flows with lengths of up to 10 kilometres (6.2 mi) then constructed the stratovolcano proper and were later buried by shorter (up to 5 kilometres (3.1 mi)) lava flows that cover a surface of 16.26 square kilometres (6.28 sq mi) around the summit crater. The Cerro Overo maar northeast of Chiliques is occasionally considered the last phase of Chiliques's activity, and the two have erupted rocks with similar chemical composition[3] but later research suggests that they are unrelated.[5] There is no evidence for historical activity.[2]

Over years, Chiliques has been monitored from space by ASTER imagery.[6] In 2002, the imagery showed evidence of a temperature anomaly on Chiliques, which occasionally reached a scale of 15 °C (27 °F). This temperature anomaly may reflect either thermal events in crater lakes or fumarolic activity, although evidence for the occurrence of either is equivocal.[6] Some of the anomalies were observed in the crater and others on the upper slopes of the volcano.[2] This anomaly lasted only a few months.[6] A subsequent expedition to the crater found no evidence of eruptions nor of any anomalous temperatures in the crater lake. Future eruptions are likely going to be lava flows and only impact the immediate surroundings of the volcano, although larger eruptions may impact the roads around Huaytiquina pass and Socaire.[5]

Láscar. This high conductivity zone reaches a depth of 6 kilometres (3.7 mi) at its southern end, and it might reflect the presence of magma underground.[7]

The lake

Laguna Lejia lies north of Chiliques volcano,[8] other parts of the volcano drain into the Salar de Atacama; the volcano forms part of the drainage divide of the salar.[9] A pre-modern route goes up the mountain and aside from the steep slopes and height of the mountain, does not feature any major difficulties.[1]

The town of

Incan tambo even farther down.[10] Such archeological sites on mountains are common in Chile, with Licancabur and Cerro Quimal being examples of other mountains with such structures.[1]

References

  1. ^
    ISSN 0718-1043
    .
  2. ^
    doi:10.1016/j.jvolgeores.2003.12.018
    .
  3. ^
    SERNAGEOMIN. Archived from the original
    (PDF) on June 24, 2021.
  4. S2CID 128979648
    .
  5. ^
    ISSN 0717-7305. Archived from the original
    (PDF) on June 29, 2021. Retrieved 20 August 2021.
  6. ^
    S2CID 129450763
    .
  7. doi:10.1016/j.jvolgeores.2011.12.007
    .
  8. ISSN 1568-5403
    .
  9. ^ Muñoz, Santiago (1894). Jeografía descriptiva de las provincias de Atacama i Antofagasta (in Spanish). Santiago de Chile : Impr. Gutenberg. pp. 27.
  10. ^
    ISSN 1743-9221
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=Chiliques&oldid=1199046747"