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单词 Avalonia
释义

Avalonia

中文百科

阿瓦隆尼亚大陆

石炭纪末期的阿瓦隆尼亚大陆,当时西北接劳伦西亚大陆、东北接波罗地大陆。阿瓦隆尼亚大陆的西半部约是现今北美洲东北岸,而东半部则是西欧部分地区

阿瓦隆尼亚大陆(Avalonia)是个远古微大陆或地体,存在于寒武纪到志留纪,范围包含现今的西欧、加拿大大西洋省份、以及部份美国东岸地区。其名称来自于加拿大纽芬兰省东南部的阿瓦隆半岛。

英语百科

Avalonia 阿瓦隆尼亚大陆

The terranes of Avalonia with modern borders for orientation: 1 Laurentia; 2 Baltica; 3 Proto-Tethys Ocean; 4 Western Avalonia; 5 Eastern Avalonia.US: United States; CT: Connecticut; MA: Massachusetts; NH: New Hampshire; ME: Maine; RI: Rhode-IslandCA: Canada; NB: New Brunswick; NFL: Newfoundland; NS: Nova-Scotia; PE: Prince Edward IslandEurope: IE: Ireland; UK: United Kingdom; FR: France; BE: Belgium; NL: Netherlands; DE: Germany; PL: Poland
Schematic diagram of the paleogeographic evolution of Avalonia, Baltica and Laurentia. (Names in German.)
Location of the Caledonian/Acadian mountain chains in the Early Devonian Epoch. Present day coastlines are shown for reference. Red lines are sutures, capitalized names are the different continents/super-terranes that joined during the Caledonian orogeny.
The Old Red Sandstone Continent in the Devonian

Avalonia was a microcontinent in the Paleozoic era. Crustal fragments of this former microcontinent underlie south-west Great Britain, and the eastern coast of North America. It is the source of many of the older rocks of Western Europe, Atlantic Canada, and parts of the coastal United States. Avalonia is named for the Avalon Peninsula in Newfoundland.

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更新时间:2025/6/18 4:33:48