the Archean

from My Earth by Primary substance

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The Archean is a geologic eon before the Paleoproterozoic Era of the Proterozoic Eon, before 2.5 Ga (billion years, or 2,500 Ma) ago. Instead of being based on stratigraphy, this date is defined chronometrically. The lower boundary (starting point) has not been officially recognized by the International Commission on Stratigraphy, but it is usually set to 3.8 Ga, at the end of the Hadean Eon. In older literature, the Hadean is included as part of the Archean. The name comes from the ancient Greek "Αρχή" (Arkhē), meaning "beginning, origin".

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from My Earth, track released February 11, 2011

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Primary substance Russian Federation

Russian musical project, founded in St. Petersburg by a musician, audio performer and media artist Alexey Semenov.

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