Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,914,545,938 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Megacycle

   Also found in: Dictionary/thesaurus, Medical, Acronyms, Wikipedia 0.02 sec.
megacycle [′meg·ə‚sī·kəl]
(physics)

Megacycle 

(or megachron), in geology, the largest stages in the tectonic history of the earth, lasting many hundreds of millions of years. In 1944 the German geologist H. Stille divided the history of the earth into three megacycles: Protogei, Deuterogei, and Neogei. The first of these corresponds to the early Precambrian (Archean), the second to the Middle Precambrian, and the third to the late Precambrian and the Phanerozoic. The term “Neogei” has become best known.



Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
Some examples of this activity include: * Megacycle quartz resonators were developed as frequency stabilizers for vacuum-tube oscillators, resulting in a ten-fold increase in stability.
Williams, Thermal voltage converters for accurate voltage measurements to 30 megacycles per second, Cumm.
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.