Protector Shoal

Protector Shoal
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height	55 m below sea level
location	South Sandwich Islands , South Atlantic
Mountains	Scotia back
Coordinates	55 ° 56 ′ 18 ″ S , 28 ° 6 ′ 0 ″ W Coordinates: 55 ° 56 ′ 18 ″ S , 28 ° 6 ′ 0 ″ W
Type	Submarine volcano
rock	Rhyolite ( pumice )
Last eruption	1962

Protector Shoal (shoal, shoal) is an undersea volcano ( seamount ) in the archipelago of the South Sandwich Islands in the South Atlantic . It is located 56 km northwest of the volcanic island of Zavodovski Island and is the northernmost of a whole series of volcanoes that stretch on the Scotia Ridge in an arc from South Georgia to Antarctica . It rises around 1200 m from the bottom of the ocean to just 55 m below the sea surface and can - with the rough seas that are common in this region - pose a danger to shipping.

The volcano is named after the HMS Protector , an ice patrol ship of the British Royal Navy , which sighted a large pumice raft in March 1962 , which came from the only previously recorded eruption of this volcano. Protector Shoal was the only volcano in the South Sandwich Islands to emit rhyolite pumice ; some of the ejecta drifted on the sea surface as far as New Zealand .

literature

Philip Timothy Leat et al .: RRS James Clark Ross JR206 Cruise Report - Volcanic and Continental Slope Processes, South Georgia and South Sandwich Islands . Report of RRS James Clark Ross cruise JR206, January – March 2010. British Antarctic Survey , July 2010 ( available online from the British Oceanographic Data Center , PDF; 2.49 MB).

Web links

Protector Seamounts in the Global Volcanism Program of the Smithsonian Institution (English).
Protector Shoal. In: Volcano World . Oregon State University (English).

Individual evidence

^ Philip Timothy Leat et al .: Growth and mass wasting of volcanic centers in the northern South Sandwich arc, South Atlantic, revealed by new multibeam mapping . In: Marine Geology . tape 275 , no. 1–4 , September 15, 2010, ISSN 0025-3227 , p. 110–126 , lines 198–206 , doi : 10.1016 / j.margeo.2010.05.001 (English, freely available online through researchgate.net ).

[1] Philip Timothy Leat et al .: Growth and mass wasting of volcanic centers in the northern South Sandwich arc, South Atlantic, revealed by new multibeam mapping . In: Marine Geology . tape 275 , no. 1–4 , September 15, 2010, ISSN 0025-3227 , p. 110–126 , lines 198–206 , doi : 10.1016 / j.margeo.2010.05.001 (English, freely available online through researchgate.net ).