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- Gya abstract "In geology, and paleontology, Gya or Ga (for giga years ago and gigaannum, respectively) is a year multiplied by one of the SI prefix multipliers. It is often used as a unit of time to denote length of time before the present. Specifically, one Gya is equal to 109 (1,000,000,000) years ago.A unit identical to Gya is bya (for "billion years ago"), which may be in more widespread use. However, some scientists prefer Gya because it uses the SI prefix giga- and thus avoids confusion over whether the short-scale (American) billion (109) (1,000,000,000) or long-scale (former British) billion (1012) (1,000,000,000,000) is meant, as well as avoiding preference for one of the two definitions of billion over the other.In some scientific literature, the term Gya has been replaced by Ga (Giga-annum).Gya can also refer to a new unit of radiation exposure called the gray. A 100 röntgen dose of radiation is equivalent to 1 Gya, the gray dose in air.".
- Gya wikiPageID "1947920".
- Gya wikiPageRevisionID "592253085".
- Gya hasPhotoCollection Gya.
- Gya subject Category:Units_of_time.
- Gya type Abstraction100002137.
- Gya type Measure100033615.
- Gya type TimeUnit115154774.
- Gya type UnitsOfTime.
- Gya comment "In geology, and paleontology, Gya or Ga (for giga years ago and gigaannum, respectively) is a year multiplied by one of the SI prefix multipliers. It is often used as a unit of time to denote length of time before the present. Specifically, one Gya is equal to 109 (1,000,000,000) years ago.A unit identical to Gya is bya (for "billion years ago"), which may be in more widespread use.".
- Gya label "Gya".
- Gya label "Gya".
- Gya sameAs Gya.
- Gya sameAs Gya.
- Gya sameAs m.0685z2.
- Gya sameAs Q896543.
- Gya sameAs Q896543.
- Gya sameAs Gya.
- Gya wasDerivedFrom Gya?oldid=592253085.
- Gya isPrimaryTopicOf Gya.