It is a marginal sea of the Arctic Ocean. It is bounded by the coast of the West Siberian lowland and Novaya Zemlya to the west, the Franz Josef Land Archipelago to the northwest, and Severnaya Zemlya to the east. It is connected to the Arctic Ocean Basin in the north, the Barents Sea in the west, and the Laptev Sea in the east. It has an area of 880,000 km2 and an average depth of 127 m, with a maximum depth of 620 m. The Kara Sea is named after the rivers that flow into it, the Yenisei, the Ob, the Pyasina, and the Kara. The Kara Sea lies on the Siberian shelf, and therefore about 40% of its water is shallower than 50 m, and 2% is deeper than 500 m. The shelf is divided by two wide deep-sea troughs in the north. Geologically, the Kara Sea was formed as a result of deglaciation during the most recent glacial period. Brown silt, gray silt, and blue silt are distributed in troughs and deep-sea depressions, sandy silt is distributed on seafloor ridges and shallow waters, and detrital soil is distributed in the northeast. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
北極海の縁海の一つ。西は西シベリア低地沿岸とノーバヤゼムリャー,北西はフランツヨシフ諸島,東はセーベルナヤゼムリャーに囲まれている。北部で北極海盆と,西部でバレンツ海と,東部でラプテフ海とつながる。88万km2の面積を有し,平均深度は 127m,最深部は 620m。流入する河川にはエニセイ川,オビ川,ピャシナ川,カラ川などがあり,カラ海はこの名にちなんで命名された。カラ海はシベリア陸棚上にあり,このため約 40%が 50m以浅で,2%が 500m以深である。陸棚は北部の二つの広い深海トラフによって分断されている。地質学的には,カラ海は最も若い時代,最新氷河時代の退氷の結果形成された。褐色シルト,灰色シルト,青色シルトがトラフや深海の凹地に,砂質シルトが海底隆起部と浅海部に,岩屑土が北東部に分布する。
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