翻訳と辞書
Words near each other
・ McDonnell Douglas Barbarian
・ McDonnell Douglas burden-shifting
・ McDonnell Douglas C-9
・ McDonnell Douglas CF-18 Hornet
・ McDonnell Douglas Corp. v. Green
・ McDonnell Douglas DC-10
・ McDonnell Douglas DC-9
・ McDonnell Douglas DC-X
・ McDonnell Douglas F-15 Eagle
・ McDonnell Douglas F-15 STOL/MTD
・ McDonnell Douglas F-15E Strike Eagle
・ McDonnell Douglas F-4 Phantom II
・ McDonnell Douglas F-4 Phantom II in Australian service
・ McDonnell Douglas F-4 Phantom II in UK service
・ McDermitt
McDermitt Caldera
・ McDermitt State Airport
・ McDermitt, Nevada–Oregon
・ McDermont Field House
・ McDermott
・ McDermott & McGough
・ McDermott Center
・ McDermott Glacier
・ McDermott International
・ McDermott Will & Emery
・ McDermott's Two Hours
・ McDermott, Alberta
・ McDermott, Ohio
・ McDevitt
・ McDiarmid


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

McDermitt Caldera : ウィキペディア英語版
McDermitt Caldera

The McDermitt Caldera is a large, oval-shaped caldera west of McDermitt in southeastern Oregon and northern Nevada in the United States. It is about wide north to south and wide east to west. The western part of the caldera is in the Trout Creek Mountains, and the northern part is in the Oregon Canyon Mountains.〔
The caldera was formed when a lava dome made of ryholite collapsed about 16 million years ago. The lava dome had been built by volcanic eruptions starting about 19 million years ago.〔〔 Significant ore deposits are buried in the caldera, including mercury and uranium, which were mined at more than eight sites in the caldera during the 20th century. Mercury at these mines was extracted in large amounts, and it came mostly from cinnabar.〔 The McDermitt Mine, located on the eastern edge of the caldera in Nevada, was the last active mercury mine in the United States before it shut down in 1992. Uranium was discovered in the caldera in 1953, and it was extracted mainly at the Moonlight mine on the caldera's southwestern edge.〔 Other deposits in the caldera contain ores of antimony, cesium, and lithium.
==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「McDermitt Caldera」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.