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Early Earth also known as proto-earth is loosely defined as encompassing Earth in its first one billion years, or gigayear (Ga, 10 9 y), [1] from its initial formation in the young Solar System at about 4.55 Ga to some time in the Archean eon in approximately 3.5 Ga. [2] On the geologic time scale, this comprises all of the Hadean eon, starting ...
The Hadean (/ h eɪ ˈ d iː ə n, ˈ h eɪ d i ə n / hay-DEE-ən, HAY-dee-ən) is the first and oldest of the four known geologic eons of Earth's history, starting with the planet's formation about 4.6 billion years ago [4] [5] (estimated 4567.30 ± 0.16 million years ago [2] set by the age of the oldest solid material in the Solar System — protoplanetary disk dust particles — found as ...
James Joyce (2 February 1882 – 13 January 1941) was an Irish novelist, poet and literary critic. He contributed to the modernist avant-garde movement and is regarded as one of the most influential and important writers of the 20th century.
The first eon in Earth's history, the Hadean, begins with the Earth's formation and is followed by the Archean eon at 3.8 Ga. [2]: 145 The oldest rocks found on Earth date to about 4.0 Ga, and the oldest detrital zircon crystals in rocks to about 4.4 Ga, [34] [35] [36] soon after the formation of the Earth's crust and the Earth itself.
Earth 2150, also known as Earth 2150: Escape from the Blue Planet, is a real-time strategy game, originally published in 2000 by SSI and Polish developer Reality Pump and a sequel to Earth 2140. 2150 was one of the first commercial full-3D games of its kind. A sequel to Earth 2150, Earth 2160, was published in August 2005.
Greenberg's first graphic novel, The Encyclopedia of Early Earth (2013), is a series of interlinking stories set in Early Earth, where her prize-winning short story was also set. Rachel Cooke , reviewing her book in The Guardian , said "her wonderful book already feels like a classic" and compared her to Tove Jansson . [ 9 ]
It was created around 3.26 Ga when a large asteroid, about 37 to 58 kilometres (23–36 mi) wide, collided with the Earth. [6] The Buck Reef chert and the Josefsdal chert, two rock formations in the Barberton Greenstone Belt, both contain microbial mats with fossilized bacteria from the Paleoarchean era. [ 4 ]
In 2019, 39 million km 2 (15 million sq mi) of Earth's land surface consisted of forest and woodlands, 12 million km 2 (4.6 million sq mi) was shrub and grassland, 40 million km 2 (15 million sq mi) were used for animal feed production and grazing, and 11 million km 2 (4.2 million sq mi) were cultivated as croplands. [271]