| 翻訳と辞書 |
| Kjeragbolten ： ウィキペディア英語版 |
Kjeragbolten
Kjeragbolten is a boulder located in the Kjerag mountain in Rogaland, Norway. The rock itself is a 5 m³ glacial deposit wedged in the mountain's crevasse. It is a popular tourist destination and is accessible without any climbing equipment. However, it is suspended above a 984-meter deep abyss. It is also a popular site for BASE jumping.〔()〕
==Geology==
Rogaland lies in a weak tectonic zone, allowing the river to dig into the surrounding sandstone fjord. During the several ice ages known to have occurred in Scandinavia Norway was completely covered in glaciers. Between the ice ages, the meltwater formed and reformed the valley up to twenty-two times.〔(【引用サイトリンク】url=http://www.geocaching.com/seek/cache_details.aspx?guid=3dc60d1a-9517-4320-95bb-0ddf16c94445 )〕 After the last ice age, global warming caused a rise in sea level, flooding the fjords. The boulder was deposited during the last glacial period, at around 50,000 B.C. As the Norwegian Glacier melted, it was accompanied by a rebound in rock formations as the ice was removed. In Kjeragbolten's case, the rebound was actually faster than the rising sea level, which wedged the rock into its current position.
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「Kjeragbolten」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.
|
|