pangaea

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Some 250 million years ago, the Earth contained a single landmass known as Pangaea.
大约2.5亿年前，地球只有一块大陆，称作原始大陆。
Rocks that now make up the northernmost islands of the Canadian Arctic formed millions of years ago as seafloor sediments off the northwestern coast of a supercontinent called Pangaea.
如今构成加拿大北极群岛的岩石在数百万年以前只是一个叫Pangaea（泛古陆）的超大陆西北海岸以外的海底沉淀物。
Pangaea began to break apart about 225 million years ago due to geological processes related to plate tectonics, which eventually spread Earth's landmasses into the continents we see today.
泛大陆大约于22.5亿年前由于板块构造的地理过程而发生了分离，最终将地球上的各大陆块分成了今天所看到的大陆。

Later,Alfred Wegener said the continents had once been part of a huge area of land he called Pangaea.

Two hundred and fifty million years ago the Earth had one landmass—what scientists call Pangaea.
FORBES: Columbus: Father of Globalization
Reformatted input data and recalculated output data are publicly available on the PANGAEA website.
UNESCO: THEMES
Unbeknownst to me, the skipper of PANGAEA was directing operations from her beam and he was the first person I met.
FORBES: The Real Deal... Mike Horn Takes Young Explorers to the Far Corners of the Planet