| 翻訳と辞書 |
| Mahuika crater ： ウィキペディア英語版 |
Mahuika crater
Mahuika crater is a submarine feature that is hypothesized to be an extraterrestrial impact crater. It is about 20 ± 2 km (12.4 ± 1.2 mi) wide and over deep and lies on the New Zealand continental shelf. The Mahuika crater is named after the Māori god of fire. However, there is debate about its origins.
==Initial discovery==
The crater was reported and named by Dallas Abbott and her colleagues from the Lamont-Doherty Earth Observatory at Columbia University.〔Abbott, D.H., A. Matzen, E.A. Bryant, and S.F. Pekar (2003) ''(Did a bolide impact cause catastrophic tsunamis in Australia and New Zealand? )'' Geological Society of America Abstracts with Programs. 35:168.〕 Based on elemental anomalies, fossils, and minerals, which are interpreted to be derived from the impact, found in an ice core from the Siple Dome in Antarctica, it is argued that the impact which created the Mahuika crater occurred around 1443 AD,〔Abbott, D.H., P. Biscaye, J. Cole-Dai, and D. Breger, 2005, ''(Evidence from an Ice Core of a Large Impact Circa 1443 A.D. )'' American Geophysical Union, Fall Meeting 2005, abstract #PP31C-05.〕 but other sources have placed the date as 13 February 1491 AD.
Some evidence suggests that the tsunami it caused was observed by aborigines and entered into their mythology.
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「Mahuika 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.
|
|