Hadean
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The Hadean ( hay-DEE-ən, HAY-dee-ən) is the first and oldest of the four geologic eons of Earth's history, starting with the planet's formation about 4.6 Ga (estimated 4567.30 ± 0.16 Ma set by the age of the oldest solid material in the Solar System—protoplanetary disk dust particles—found as chondrules and calcium–aluminium-rich inclusions in some meteorites about 4.567 Ga), and ended 4.031 Ga the age of the oldest known intact rock formations on Earth as recognized by the International Commission on Stratigraphy. The interplanetary collision that created the Moon occurred early in this eon. The Hadean eon was succeeded by the Archean eon, with the Late Heavy Bombardment hypothesized to have occurred at the Hadean-Archean boundary.
Hadean rocks are very rare, largely consisting of granular zircons from one locality (Jack Hills) in Western Australia. Hadean geophysical models remain controversial among geologists: plate tectonics and the growth of cratons into continents may have started in the Hadean, but there is still uncertainty.
Earth in the early Hadean had a very thick hydride-rich atmosphere whose composition likely resembled the solar nebula and the gas giants, with mostly water vapor, methane and ammonia. As the Earth's surface cooled, vaporized atmospheric water condensed into liquid water and eventually a superocean covering nearly all of the planet was formed, turning Earth into an ocean planet. Volcanic outgassing and asteroid bombardments further altered the Hadean atmosphere eventually into the nitrogen- and carbon dioxide-rich, weakly reducing Paleoarchean atmosphere.
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- Wicked Man Ting - Simply Bass, Vol. 15 - Hadean
- Hit Da Sound - Simply Bass, Vol. 15 - Hadean
- Eyes On Me - Simply Bass, Vol. 15 - Hadean
- Squiggle Shifter - Simply Bass, Vol. 15 - Hadean
- Caned - Simply Bass, Vol. 15 - Hadean
- Rockin - Simply Bass, Vol. 15 - Hadean
- Boom! - Simply Bass, Vol. 15 - Hadean
- Poison Dart - Simply Bass, Vol. 15 - Hadean
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- Carinha De Malvadão - Simply Bass, Vol. 15 - Hadean
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- Slave - Simply Bass, Vol. 15 - Hadean
- Deal - Simply Bass, Vol. 15 - Hadean
- Underground - Extended Mix - Simply Bass, Vol. 15 - Hadean
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- Completely - Extended Mix - Simply Bass, Vol. 15 - Hadean
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