Ch'iyar Qullu (Oruro)

This article is about the mountain in the Ladislao Cabrera Province, Oruro Department, Bolivia. For other uses, see Ch'iyar Qullu.
Ch'iyar Qullu
Ch'iyar Qullu is located in Bolivia
Ch'iyar Qullu
Ch'iyar Qullu
Location in Bolivia
Highest point
Coordinates19°26′00″S 67°23′00″W / 19.43333°S 67.38333°W / -19.43333; -67.38333[1][2]
Geography
LocationBolivia,
Oruro Department, Ladislao Cabrera Province
Parent rangeAndes

Ch'iyar Qullu (Aymara ch'iyara black, qullu mountain,[3] "black mountain", also spelled Chiar Kkollu) is a volcanic centre in Bolivia. It is located in the Oruro Department, Ladislao Cabrera Province, Salinas de Garci Mendoza Municipality, northeast of Salinas de Garci Mendoza, near a maar named Jayu Quta ("salt lake").[4]

It is a sill formed from primitive phyric alkali basalt that closely resembles ocean island basalt in composition and now appears as a hill. The rocks contain augite and olivine and the eruption site coincides with a local lineament[2][5] and is of Miocene age,[6] with dates of 22.51±0.45 mya by Ar-Ar dating and 25.2±0.5 mya by K-Ar dating.[5] The Ch'iyar Qullu magmas are Central Andes intraplate magmas and originate from the upper mantle.[7]

  1. ^ Cite error: The named reference field was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference DavidsonSilva1992 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference bertonio was invoked but never defined (see the help page).
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  5. ^ a b Cite error: The named reference DavidsonSilva1995 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference McLeodDavidson2012 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference MazzuoliVezzuoli2008 was invoked but never defined (see the help page).