Geology and Oceanography

A Dictionary of Earth Sciences World Encyclopedia A Dictionary of Ecology Further reading

law of superposition of strata

A Dictionary of Earth Sciences | 1999 | | Copyright

law of superposition of strata (principle of superposition) Strata are deposited sequentially, so that in an undistrubed sedimentary succession each layer of rock is younger than the layer beneath it. Subsequent earth movements may overturn and invert this sequence. The law was first proposed in the 17th century by Nicolaus Steno.

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AILSA ALLABY and MICHAEL ALLABY. "law of superposition of strata." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "law of superposition of strata." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-lawofsuperpositionofstrat.html

AILSA ALLABY and MICHAEL ALLABY. "law of superposition of strata." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-lawofsuperpositionofstrat.html

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superposition, law of

World Encyclopedia | 2005 | Copyright

superposition, law of In geology, law that states that in undisturbed layers of sedimentary deposits, younger beds overlie older ones.

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"superposition, law of." World Encyclopedia. 2005. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

"superposition, law of." World Encyclopedia. 2005. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O142-superpositionlawof.html

"superposition, law of." World Encyclopedia. 2005. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-superpositionlawof.html

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