Definition of Megaannum. Meaning of Megaannum. Synonyms of Megaannum

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Definition of Megaannum

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Meaning of Megaannum from wikipedia

- A year is the time taken for astronomical objects to complete one orbit. For example, a year on Earth is the time taken for Earth to revolve around the...
- Million years ago, abbreviated as Mya, Myr (me****ear) or Ma (megaannum), is a unit of time equal to 1,000,000 years (i.e. 1×106 years), or approximately...
- periods are then expressed by using metric prefixes with the annum, such as megaannum (Ma) or gigaannum (Ga).[citation needed] The SI unit of angle is the radian...
- Ga) Hadean Eon (4–4.6 Ga)   ka = kiloannum (thousand years ago); Ma = megaannum (million years ago); Ga = gigaannum (billion years ago). See also: Geologic...
- photosynthesis c. 2.3 Ga: Oxygenated atmosphere, first snowball Earth 730–635 Ma (megaannum: million years ago): second snowball Earth 541 ± 0.3 Ma: Cambrian explosion...
- Ga) Hadean Eon (4–4.6 Ga)   ka = kiloannum (thousand years ago); Ma = megaannum (million years ago); Ga = gigaannum (billion years ago). See also: Geologic...
- Ga) Hadean Eon (4–4.6 Ga)   ka = kiloannum (thousand years ago); Ma = megaannum (million years ago); Ga = gigaannum (billion years ago). See also: Geologic...
- Ga) Hadean Eon (4–4.6 Ga)   ka = kiloannum (thousand years ago); Ma = megaannum (million years ago); Ga = gigaannum (billion years ago). See also: Geologic...
- International Chronostratigrahpic Chart are represented by the unit Ma (megaannum, for 'million years'). For example, 201.4 ± 0.2 Ma, the lower boundary...
- Ga) Hadean Eon (4–4.6 Ga)   ka = kiloannum (thousand years ago); Ma = megaannum (million years ago); Ga = gigaannum (billion years ago). See also: Geologic...