Brown Bluff

Brown Bluff
Brown Bluff
	Brown Bluff as seen from Antarctic Sound
Highest point
Elevation	745 m (2,444 ft)
Listing	List of subglacial volcanoes; List of volcanoes in Antarctica
Coordinates	63°32′S 56°55′W / 63.533°S 56.917°W
Geography
	Brown Bluff Tabarin Peninsula, Antarctica
Geology
Mountain type	Tuya
Volcanic field	James Ross Island Volcanic Group
Last eruption	Pleistocene

Brown Bluff is a basalt tuya on the Tabarin Peninsula of northern Antarctica.^[2] It formed in the last 1 million years as a result of subglacial eruptions within an englacial lake. The volcano's original diameter is thought to have been about 12–15 kilometers (7.5–9.3 mi) and was probably formed by a single vent. Brown Bluff is divided into four stages: pillow volcano, tuff cone, slope failure, and hyaloclastite delta; and into five structural units.^[3]

The volcano gets its name from its steep slopes and brown-to-black hyaloclastite. It was applied by the Falklands Islands Dependencies Survey following their survey in 1946.^[1]

^ ^a ^b ^c This article incorporates public domain material from "Brown Bluff". Geographic Names Information System. United States Geological Survey.
^ Elias, Scott A.; Mock, Cary J. (2013). Encyclopedia of Quaternary Science. Elsevier.
^ Skilling, I. P. (1994). "Evolution of an englacial volcano: Brown Bluff, Antarctica". Bulletin of Volcanology. 56 (6–7): 573–591. Bibcode:1994BVol...56..573S. doi:10.1007/BF00302837. S2CID 128894569.

[USGS-1] This article incorporates public domain material from "Brown Bluff". Geographic Names Information System. United States Geological Survey.

[2] Elias, Scott A.; Mock, Cary J. (2013). Encyclopedia of Quaternary Science. Elsevier.

[3] Skilling, I. P. (1994). "Evolution of an englacial volcano: Brown Bluff, Antarctica". Bulletin of Volcanology. 56 (6–7): 573–591. Bibcode:1994BVol...56..573S. doi:10.1007/BF00302837. S2CID 128894569.

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