Skip to main content
superposition principle

superposition principle

7.7
The lowest layer in a series of rock layers is the oldest
  • noun
  • /ˌsuːpərpəˈzɪʃən ˈprɪn.sə.pəl/
  • Specialized
translation icon : principio de superposición
  • application of the superposition principle

Examples

  • As Wigner pointed out, the superposition principle means that we can construct linear combinations of states that transform simply under the symmetry transformations.

    Academic text (1995)
  • According to the superposition principle, in a sequence of sedimentary rocks, the oldest layer is at the bottom.

  • The geologist explained the superposition principle, stating that the lowest sediment layer is the first to form.

  • In understanding the superposition principle, it is essential to recognize that the deepest layer of rock is the oldest.

Synonyms

principle of superposition
vssuperposition principle
  • Specialized
7.7

A rule that in rock layers left in place the bottom layer is oldest

is identical in meaning but uses a different word order
superposition
vssuperposition principle
  • Specialized
8.6

A rule that rock layers have the oldest at the bottom and newer ones above

focuses on the same idea but is the more formal named term

Surface Forms

Morphology

superposition + principle

This is a directly compositional scientific label: 'superposition principle' simply names the principle concerning superposition. If a learner knows 'superposition' (the concept that older layers lie below newer ones) and 'principle' (a governing rule), they can infer the MWE's meaning; the 'X principle' pattern is productive and cross-linguistically common.

Etymology

The noun superposition principle comes from the image of rock layers stacked like a layered cake: new material is put on top, so the lowest layer is the 'oldest'. That's why geologists use this rule to tell which layers are 'older' or 'younger'.