翻訳と辞書 Words near each other ・ Siliștea, Brăila ・ Siliștea, Constanța ・ Siliștea, Teleorman ・ Silița River ・ Silja Ekeland Bjørkly ・ Silja Kanerva ・ Silja Lehtinen ・ Silja Line ・ Silja Tarvonen ・ Silja Tillner ・ Silja Vöneky ・ Silja Walter ・ Siljan ・ Siljan (lake) ・ Siljan Avramovski ・ Siljan Ring ・ Siljan, Norway ・ Siljansnäs ・ Silje ・ Silje Bolseth ・ Silje Ekroll Jahren ・ Silje Holtet ・ Silje Jørgensen ・ Silje Lundberg ・ Silje Nergaard ・ Silje Nes ・ Silje Norendal ・ Silje Reinåmo ・ Silje Schei Tveitdal ・ Silje Solberg Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Siljan Ring ： ウィキペディア英語版 Siljan Ring The Siljan Ring (Swedish: ''Siljansringen'') is a prehistoric impact crater in Dalarna, central Sweden.〔 It is one of the 18 largest known impact craters on Earth and the largest in Europe, with a diameter of about 52 km (32 mi). The impact that created the Siljan Ring occurred when a meteorite collided with the Earth's surface during the Devonian period, about 377 million years ago. The effects of the impact can clearly be seen in the bedrock in the area. The Cambrian, Ordovician and Silurian sedimentary rocks deformed by the impact are rich in fossils. The area around the Siljan Ring has been the site of recent prospecting for oil and natural gas, though none of the projects has so far been commercially viable. There are large deposits of lead and zinc near Boda at the eastern edge of the Ring. There are several lakes in the vicinity, the largest of which is Siljan on the south-southwestern edge of the crater, with the smaller Lake Orsa to the west and Skattungen and Ore on the northeastern margin. ==Geology== The Siljan Ring consists of an annular outcrop of Lower Paleozoic sedimentary rocks within Proterozoic granites of the Dala series.〔 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「Siljan Ring」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.