翻訳と辞書 Words near each other ・ Cryptodaphne ・ Cryptodaphne affinis ・ Cryptodaphne gradata ・ Cryptodaphne kilburni ・ Cryptodaphne rugosa ・ Cryptodendrum adhaesivum ・ Cryptodepression ・ Cryptodiaporthe ・ Cryptodiaporthe melanocraspeda ・ Cryptodictyon ・ Cryptodifflugia ・ Cryptodira ・ Cryptodiscus ・ Cryptodonta ・ Cryptodontia ・ Cryptoexplosion ・ Cryptofiction ・ Cryptofusus ・ Cryptofusus cryptocarinatus ・ Cryptogam ・ Cryptogam Ridge ・ Cryptogemma ・ Cryptogemma benthima ・ Cryptogemma calypso ・ Cryptogemma chrysothemis ・ Cryptogemma corneus ・ Cryptogemma eldorana ・ Cryptogemma longicostata ・ Cryptogemma oregonensis ・ Cryptogemma phymatias 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 Cryptoexplosion ： ウィキペディア英語版 Cryptoexplosion The term cryptoexplosion structure (or cryptovolcanic structure) means an explosion of unknown cause. The term is now largely obsolete. It was once commonly used to describe sites where there was geological evidence of a large-scale explosion within the Earth's crust, but no definitive evidence for the cause such as normal volcanic rocks. These sites are usually circular with signs of anomalous rock deformation contrasting with the surrounding region, and often showing evidence that crustal material had been uplifted and/or blown outwards. The assumption was that some unusual form of volcanism, or a gas explosion originating within the crust, was the cause. The use of the term went away with the rise of the science of impact crater recognition in the late 20th century. Most structures described as cryptoexplosions turned out to be eroded impact craters, caused by the impact of meteorites. Today geologists discount former cryptoexplosion theories. ==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「Cryptoexplosion」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.