翻訳と辞書 |
Kärdla crater : ウィキペディア英語版 | Kärdla crater Kärdla is a meteorite crater near the town of Kärdla in Estonia. It is 4 km (2.5 mi) in diameter and its age is estimated to be about 455 million years (Upper Ordovician). The crater is not exposed at the surface. Its formation has been associated with the breakdown of 100km asteroid, that might have also resulted Tvären and Lockne craters in Sweden among others.〔A rain of L-Chondrites in the Thorsberg quarry at Kinnekulle, southern Sweden-Thomas Müller TU Bergakademie Freiberg, Germany.〕 ==References==
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「Kärdla crater」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.
|
|