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formation

formation

57 6.3
A layer of rock that has the same type and origin
  • noun
  • /fɔːrˈmeɪʃən/
  • Specialized
translation icon : formación geológica
  • Photo: Sauropod bones are embedded in rocks of the Morrison Formation in Dinosaur National Monument, Utah.
  • rock formation
  • subsurface formation
  • land formation

Is it a marvellous example of columnar basalt formation?

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Examples

  • The landmark rock formation.

  • Change the dust cloud just a bit, and perhaps the conditions wouldn't have been right for the formation of life on our planet.

  • Let's go down lower and head for that rock formation over there.

  • You can see the rock formations.

  • Do you know the path to the rock formations on the east side of the lough?

    Fiction book (1994)
  • Quasars may represent a special phase in the formation and evolution of galaxies.

    Academic text (1992)
  • On our way, we pass small shrines tucked into nooks in the rock formations.

    Academic text (2008)
  • The Grand Canyon showcases a stunning rock formation that attracts geologists from around the world.

  • The geologist explained that this formation was created millions of years ago through volcanic activity.

  • Many unusual mineral deposits can be found in this limestone formation in the mountainous region.

Synonyms

rock formation
vsformation
  • Specialized
14 3.6

A natural shape of rocks made over a long time by wind or water

is a defined rock body with identifiable origin within the earth's crust
geological formation
vsformation
  • Specialized
3 4.4

A natural layer of rock or soil that looks different from the layers around it

is narrower, applying only to rock bodies rather than mixed materials

Compounds

rock formation
  • Specialized
14 3.6

A natural shape of rocks made over a long time by wind or water

geological formation
  • Specialized
3 4.4

A natural layer of rock or soil that looks different from the layers around it

reticular formation
  • Specialized
1 8.7

A network of nerve cells deep in the brain that helps control being awake, attention, sleep, and muscle tone

A group of soldiers who move in a set pattern to fight

reaction formation
  • Specialized
1 9.3

A way a person acts without knowing to hide feelings by doing the opposite

bistellar formation
  • Specialized
9.9

A pattern of two or more stars seen in the sky

calque formation
  • Specialized
9.8

Making a new phrase by translating the words of one from another language, for example skyscraper from French

back-formation
  • Specialized
8.6

A word made by removing an ending from a longer word

heat of formation
  • Specialized
6.7

The heat released or absorbed per mole when a compound forms from its elements under standard conditions

5.8

To make something again in a new or better way

pair formation
  • Specialized
9.9

When a high energy light particle turns into an electron and a positron near an atomic nucleus

How Big

supergroup
  • Specialized
8.7
group
1.0
formation
  • Specialized
57 6.3
member
1.4
bed
  • Specialized
128 5.2

Surface Forms

formation singular
formations plural

Morphology

formation = form (semi-transparent) = form + ation

Built from 'form' + '-ation', but this sense is a technical geological term that a learner cannot reliably derive from 'form' alone.

Etymology

Formation comes from the root form, meaning 'shape'. In the ground, a rock formation is a part of rock with a clear 'shape' or layer you can see, so the word points to the rock's shape.