superposition

[soo-per-puh-zish-uh n]

noun Geology.

the order in which sedimentary strata are superposed one above another.

Compare law of superposition.

Origin of superposition

1790–1800; < French superposition; see super-, position

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for superposition

Historical Examples of superposition

If this method of superposition is not possible, locate by measurement.
Handwork in Wood
William Noyes
Another reservation must be made when considering the law of superposition.
The Principles of Stratigraphical Geology
J. E. Marr
This order of superposition, however, would not always be preserved.
The World Before the Deluge
Louis Figuier
In the order of superposition of strata there is occurring a like variety.
Illustrations of Universal Progress
Herbert Spencer
This occurs in the lowest place in the order of superposition.
A Manual of Elementary Geology
Charles Lyell.

British Dictionary definitions for superposition

superposition

noun

the act of superposing or state of being superposed
geology the principle that in any sequence of sedimentary rocks which has not been disturbed, the oldest strata lie at the bottom and the youngest at the top

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for superposition

1650s, from French superposition, from Late Latin superpositionem (nominative superpositio), noun of action from past participle stem of superponere, from super (see super-) + ponere "to put, place" (see position).

superposition in Science

superposition

[sōō′pər-pə-zĭsh′ən]

The principle that in a group of stratified sedimentary rocks the lowest were the earliest to be deposited.
The principle by which the description of the state of a physical system can be broken down into descriptions that are themselves possible states of the system. For example, harmonic motion, as of a violin string, can be analyzed as the sum of harmonic frequencies or harmonics, each of which is itself a kind of harmonic motion; harmonic motion is therefore a superposition of individual harmonics.
The combination of two or more physical states, such as waves, to form a new physical state in accordance with this principle. See also wave. See Note at Schrödinger.