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Lotterberg
Lotterberg is a (NHN) high hill between the villages of Wolfershausen and Deute in Schwalm-Eder-Kreis, Hesse, Germany. == Geology == The hill is composed of basalt that fills the neck of a now-extinct volcano. The volcanic activity was during the Miocene (Neogene), that is it started and ended . This volcano was one of many in the West Hesse Depression.〔 〕 The alkali basalt has a silica (SiO2) volume percentage of 45-55%.〔 〕 The main minerals in the rock are plagioclase, augite and olivine. On the west side of the Lotterberg is a deposit of loess, which formed after the last Quaternary glaciation.
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「Lotterberg」の詳細全文を読む
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