diapir

di·a·pir  (d-pîr)

n.

An anticlinal fold in which a mobile core, such as salt or gypsum, has pierced through the more brittle overlying rock.

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[French, from Greek diapeirein, to push through : dia-, dia- + peirein, to pierce; see per-² in Indo-European roots.]

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dia·piric adj.

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diapir [ˈdaɪəˌpɪə]

n

(Earth Sciences / Geological Science) Geology an anticlinal fold in which the brittle overlying rock has been pierced by material, such as salt, from beneath

[from Greek diapeirainein to make holes through, pierce]

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diapir  (d-pîr)

A fold or dome, such as an anticline, in which the upper strata of sediment or rock have been ruptured by the upward movement of more plastic rock, such as a body of salt, gypsum, or lava.

Thesaurus

Noun

1.

diapir - a domed rock formation where a core of rock has moved upward and pierced through the more brittle overlying strata geology - a science that deals with the history of the earth as recorded in rocks geological formation, formation - (geology) the geological features of the earth