diapir core
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diapir — [dī′ə pir΄] n. Geol. a dome formation in which the rigid top layers have been split open by pressure from an underlying plastic core diapiric [dī΄ə pir′ik] adj … English World dictionary
diapir — noun Etymology: French, probably from Greek diapeirein to drive through, from dia + peirein to pierce; akin to Greek poros passage more at fare Date: 1918 an anticlinal fold in which a mobile core has broken through brittle overlying rocks •… … New Collegiate Dictionary
diapir — A dome or anticlinal fold in which the overlying rocks or sediments have been ruptured by the squeezing out of plastic core material. Diapirs in sedimentary strata usually contain cores of salt or shale; igneous intrusions may also show… … Glossary of landform and geologic terms
diapir — [ dʌɪəpɪə] noun Geology a domed rock formation in which a core of rock has moved upward to pierce the overlying strata. Derivatives diapiric adjective diapirism noun Origin early 20th cent.: from Gk diapeirainein pierce through … English new terms dictionary
diapir — noun a domed rock formation where a core of rock has moved upward and pierced through the more brittle overlying strata • Topics: ↑geology • Hypernyms: ↑geological formation, ↑formation … Useful english dictionary
Mantle plume — A superplume generated by cooling processes in the mantle.[1] A mantle plume is a hypothetical thermal diapir of abnormally hot rock that nucleates at the core mantle boundary and rises through the Earth s mantle. Such plumes were invoked in 1971 … Wikipedia
Venus — /vee neuhs/, n., pl. Venuses for 2. 1. an ancient Italian goddess of gardens and spring, identified by the Romans with Aphrodite as the goddess of love and beauty. 2. an exceptionally beautiful woman. 3. (sometimes l.c.) Archaeol. a statuette of… … Universalium
Anticline — In structural geology, an anticline is a fold that is convex up and has its oldest beds at its core. The term is not to be confused with antiform , which is a purely descriptive term for any fold that is convex up. Therefore if age relationships… … Wikipedia
Moho line — The Mantle is a part of an astronomical object. Earth s mantle is a 2,900 km thick rocky shell comprising approximately 70% of Earth s volume. It is predominantly solid and overlies the Earth s iron rich core, which occupies about 30% of Earth s… … Wikipedia
salt dome — Geol. a domelike rock structure that is formed beneath the earth s surface by the upward movement of a mass of salt, may reach thousands of feet in vertical extent, and is more or less circular in plan: often associated with oil and gas pools. Cf … Universalium
Enceladus (moon) — Infobox Planet name = Enceladus alt names = Saturn II adjectives = Enceladean caption = Degraded craters, fractures and disrupted terrain in Cassini mosaic of the north polar region of Enceladus bgcolour = #a0ffa0 discovery = yes discoverer =… … Wikipedia
