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because it is one of the newer eons so they can study it still
There are 4 Eons not 3, these are :Phanerozoic 540 million years ago to today.Proterozoic 2.5 billion to 540 million years agoArcheozoic 3.9 to 2.5 billion years agoHadean 4.6 to 3.9 billion years ago
5th Edit: The ancient Greeks referred to an eon as being an eternity, so by that definition, we would be in the one and only eon, but in geology, an eon amounts to about 1 billion years, making the Earth be 4.6 eons old, so, the answer would either be the first eon, or the 5th eon. Depends on how you look at it.
The geological time scale is divided into: Eons (Such as the Proterozoic and the Phanerozoic) THEN Eras (Such as the Mesozoic and the Cenozoic) THEN Periods (Such as the Cretaceous and the Quaternary) THEN Series, alternatively Epoch (Such as the Pleistocene and the Holocene) THEN Stage (Such as the Campanian and the Tarantian)
The Precambrian.
Precambrian is an informal term for the time before the Cambrian Period, the first period of the Phanerozoic Eon. The Precambrian consists of three eons, the Hadean, the Archean, and the Proterozoic. The Hadean Eon is about 760,000,000 years long. The Archean Eon is about 1,300,000,000 years long. The Proterozoic Eon is about 1,960,000,000 years long This comes to a total of 4,025,000,000 years.
The geological time scale is divided into: Eons (Such as the Proterozoic and the Phanerozoic) THEN Eras (Such as the Mesozoic and the Cenozoic) THEN Periods (Such as the Cretaceous and the Quaternary) THEN Series, alternatively Epoch (Such as the Pleistocene and the Holocene) THEN Stage (Such as the Campanian and the Tarantian)
In general speech, an eon can refer to a very long period of time. In science, an eon is the largest division in the geologic time scale. An eon is subdivided into two or more eras and lasts around a billion years or so. In Earth's history there are four eons in total: Hadean, Archean, Proterozoic, and Phanerozoic. We are currently in the Phanerozoic Eon.
The Precambrian is the largest span of time in Earth's history before the current Phanerozoic Eon, and is a Supereon divided into several eons of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago (Ga) to the beginning of the Cambrian Period, about 541.0 ± 1.0 million years ago (Ma), when hard-shelled creatures first appeared in abundance.
Exile of the Eons was created in 1950.
there is notelling but theres only eons in the atmopheric zone
The earth was born eons ago