Magma chamber

A magma chamber is a large pool of liquid rock beneath the surface of the Earth. The molten rock, or magma, in such a chamber is less dense than the surrounding country rock, which produces buoyant forces on the magma that tend to drive it upwards.^[1] If the magma finds a path to the surface, then the result will be a volcanic eruption; consequently, many volcanoes are situated over magma chambers.^[2] These chambers are hard to detect deep within the Earth, and therefore most of those known are close to the surface, commonly between 1 km and 10 km down.^[3]

^ Philpotts, Anthony R.; Ague, Jay J. (2009). Principles of igneous and metamorphic petrology (2nd ed.). Cambridge, UK: Cambridge University Press. pp. 28–32. ISBN 9780521880060.
^ "Forensic Probe of Bali's Great Volcano". Eos. 12 February 2019. Retrieved 25 November 2020.
^ Dahren, Börje; Troll, Valentin R.; Andersson, Ulf B.; Chadwick, Jane P.; Gardner, Màiri F.; Jaxybulatov, Kairly; Koulakov, Ivan (1 April 2012). "Magma plumbing beneath Anak Krakatau volcano, Indonesia: evidence for multiple magma storage regions". Contributions to Mineralogy and Petrology. 163 (4): 631–651. Bibcode:2012CoMP..163..631D. doi:10.1007/s00410-011-0690-8. ISSN 1432-0967. S2CID 52064179.

[1] Philpotts, Anthony R.; Ague, Jay J. (2009). Principles of igneous and metamorphic petrology (2nd ed.). Cambridge, UK: Cambridge University Press. pp. 28–32. ISBN 9780521880060.

[2] "Forensic Probe of Bali's Great Volcano". Eos. 12 February 2019. Retrieved 25 November 2020.

[3] Dahren, Börje; Troll, Valentin R.; Andersson, Ulf B.; Chadwick, Jane P.; Gardner, Màiri F.; Jaxybulatov, Kairly; Koulakov, Ivan (1 April 2012). "Magma plumbing beneath Anak Krakatau volcano, Indonesia: evidence for multiple magma storage regions". Contributions to Mineralogy and Petrology. 163 (4): 631–651. Bibcode:2012CoMP..163..631D. doi:10.1007/s00410-011-0690-8. ISSN 1432-0967. S2CID 52064179.

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