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词条 Casa Colorada (volcano)
释义

  1. See also

  2. References

{{coord|22|19|S|66|20|W|display=intitle}}Casa Colorada is a dacitic volcanic dome complex erupted 17 million years ago. It has a volume of {{convert|1.5|km3}}. The complex formed in three stages, involving a tuff ring, lava domes and dacitic lava flows. It is constructed on red beds and a basement of Ordovician age. The main dome is dated 17.3 mya by potassium–argon dating. The main minerals are biotite, hornblende, feldspar and quartz; oxide minerals are also present.

See also

  • Altiplano–Puna volcanic complex

References

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{{Volcanology-stub}}

2 : Volcanoes of Jujuy Province|Lava domes

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