Cooper Bluffs
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Zykov Glacier () is a
valley A valley is an elongated low area often running between Hill, hills or Mountain, mountains, which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers ...
glacier A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its Ablation#Glaciology, ablation over many years, often Century, centuries. It acquires dis ...
in northern Victoria Land,
Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest contine ...
, east of Saddle Peak and Mount Kostka in the Anare Mountains. It is about 25 miles (40 km) long, and flows northwest, reaching the
Pennell Coast Pennell Coast is that portion of the coast of Antarctica between Cape Williams and Cape Adare. To the west of Cape Williams lies Oates Coast, and to the east and south of Cape Adare lies Borchgrevink Coast. Named by New Zealand Antarctic Place- ...
between
Cape Williams Cape Williams () is an ice-covered cape in Antarctica. It is the termination of Buell Peninsula at the east side of the terminus of Lillie Glacier at the lower ends of George Glacier and Zykov Glacier. The peninsula is 15 nautical miles (28 km) ...
and Cooper Bluffs. Photographed by the Soviet Antarctic Expedition from the survey ship ''Ob'' in 1958, it was named by them for student navigator Ye. Zykov, who died in Antarctica, February 3, 1957. The underlying rock includes micaceous phyllite and micaceous
schist Schist ( ) is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes o ...
; it was estimated by
radioisotope dating Radiometric dating, radioactive dating or radioisotope dating is a technique which is used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed. The method compares t ...
( potassium–argon) in 1964 to be 410 or 420 million years old. A separate study of
metamorphic rock Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock (protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, causin ...
s recovered from near the glacier (1959–62) found evidence of thermal crystallisation.
Scientific and Technical Aerospace Reports
' 6 (5): 651


See also

*
List of glaciers in the Antarctic There are many glaciers in the Antarctic. This set of lists does not include ice sheets, ice caps or ice fields, such as the Antarctic ice sheet, but includes glacial features that are defined by their flow, rather than general bodies of ice. Th ...
*
Zykov Island Zykov Island () is a small island between Fulmar Island and Buromskiy Island in the Haswell Islands, near Queen Mary Land on Antarctica. It was discovered and first mapped by the Australasian Antarctic Expedition under Douglas Mawson of 1911–14 ...
, also named for Ye. Zykov


References


Further reading

*Ravich, M. G.; Krylov, A. J. "Absolute ages of rocks from East Antarctica". In: ''Antarctic Geology'' (Adie, R. J., ed.), pp. 579–89 ( North Holland Publishing; 1964) Glaciers of Pennell Coast {{PennellCoast-glacier-stub