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Lake Peipus,〔(Lake Peipus ). Encyclopaedia Britannica online〕 ((エストニア語:Peipsi-Pihkva järv); (ロシア語:Псковско-Чудское озеро) (Pskovsko-Chudskoe ozero), (ドイツ語:Peipussee)) is the biggest transboundary lake in Europe on the border between Estonia (part of European Union) and Russia. The lake is the fifth largest in Europe after Lake Ladoga and Lake Onega in Russia north of St. Petersburg, Lake Vänern in Sweden, and Lake Saimaa in Finland. Lake Peipus is a remnant of a body of water which existed in this area during an Ice Age. It covers 3,555 km2, and has an average depth of 7.1 m, the deepest point being 15 m.〔(【引用サイトリンク】title=Chudsko-Pskovskoe ozero )〕〔 (Russian lakes with area of more than 350 km² ). (GIF table). Retrieved on 2012-01-21.〕 The lake has several islands and consists of 3 parts: *Lake Peipsi/Chudskoe ((エストニア語:Peipsi järv), (ロシア語:Чудское озеро)) is the northern part of the lake with the area of 2,611 km2 (73%). *Lake Pihkva/Pskovskoe ((エストニア語:Pihkva järv), (ロシア語:Псковское озеро)) is the southern part of the lake (area 708 km2 or 20%). *Lake Lämmijärv/Teploe ((エストニア語:Lämmijärv), (ロシア語:Тёплое озеро)) is the sound connecting both parts of the lake (area 236 km2 or 7%). The lake is used for fishing and recreation, but suffered from some environmental degradation from Soviet era agriculture. Some 30 rivers and streams discharge into Lake Peipus. The largest rivers are the Emajõgi and the Velikaya River. The lake is drained by the Narva River. In 1242, the lake was the site of the Battle on the Ice ((エストニア語:Jäälahing)) between the Teutonic Knights and Novgorodians under Alexander Nevsky. ==Formation== The lake is a remnant of a larger body of water which existed in this area during an Ice Age.〔Encyclopedic Dictionary of Geography: Geographical names – Moscow: Soviet Encyclopedia. 1983, p. 488.〕 In the Paleozoic Era, 300–400 million years ago, the entire territory of the modern Gulf of Finland was covered by a sea. Its modern relief was formed as a result of glacier activities, the last of which, the Weichselian glaciation, ended about 12,000 years ago. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lake Peipus」の詳細全文を読む スポンサード リンク
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