Difference between revisions of "Mega year ago"
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==Use== | ==Use== | ||
Instead of "trilobites went extinct 251 million years ago" <ref>http://www.trilobites.info/lasttrilos.htm</ref>, one would write "trilobites went extinct 251 Ma". The use of "Ma" avoids word repeats when writing papers. | Instead of "trilobites went extinct 251 million years ago" <ref>http://www.trilobites.info/lasttrilos.htm</ref>, one would write "trilobites went extinct 251 Ma". The use of "Ma" avoids word repeats when writing papers. | ||
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[[Category:Terms]] | [[Category:Terms]] | ||
Revision as of 21:51, January 1, 2011
The Mega year ago, often abbreviated as Ma of Mya [1], is a useful shorthand notation for long times that is more concise than scientific notation. The time for geological events such as the formation of a mountain is typically on the order of a few Ma.
Use
Instead of "trilobites went extinct 251 million years ago" [2], one would write "trilobites went extinct 251 Ma". The use of "Ma" avoids word repeats when writing papers.
