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Zhokhov Island
Zhokhov Island ((ロシア語:Остров Жохова); ''Ostrov Zhokhova'') is an island in the East Siberian Sea, situated 128 km north east of Novaya Sibir Island, the easternmost of the New Siberian Islands. Zhokhov Island belongs to the De Long group. It has an area of . The highest point of the island is . This island belongs to the Sakha (Yakutia) Republic administrative division of Russia.〔(Respublika Sakha (Yakutiya) Land Feature Database )〕
The sea surrounding this island is covered with fast ice in the winter and the climate is severe. The surrounding sea is obstructed by pack ice, even during the summer.
==Geology==
Zhokhov Island consists of extrusive basalt lava flows and tuffs. The bulk of this island is made up of a thick stack of olivine basalt, olivine trachybasalt, and nepheline basalt lava flows. Overlying these lava flows is a layer of friable volcanic ash and tuff that is capped by a thick basalt lava flow. The total thickness of volcanic rocks exposed within Zhokhov Island is about 400 meters〔Fujita, K., and D.B. Cook, 1990, ''The Arctic continental margin of eastern Siberia'', in A. Grantz, L. Johnson, and J. F. Sweeney, eds., pp. 289-304, The Arctic Ocean Region. Geology of North America, vol L, Geological Society of America, Boulder, Colorado.〕〔Kos’ko, M.K., B.G. Lopatin, and V.G. Ganelin, 1990, ''Major geological features of the islands of the East Siberian and Chukchi Seas and the Northern Coast of Chukotka.'' Marine Geology. vol. 93, pp. 349–367.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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