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The Planet Chronicles by Diatoms

... average We are reminded that for almost 100 million years Eurasia and North America were connected by the Bering bridge, that is, the northern Pacific was a gigantic sea gulf. The strait formation that resulted in establishing connection between the Arctic and Pacific basins had significantly influenced the climate and the development of communities in the Northern Hemisphere. The first opening of the strait was dated, on the basis of findings of mollusks of the genus Astarte, at 3.5—4.4 million years. The attempts to determine a more precise age failed....

Modified: 30.08.2006
diatoms , silica , nature , Arctic , climate , tsunami
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