mantle plume

GLOSSARY OF VOLCANIC TERMS
An elliptical, drop-shaped mass of mantle that ascends toward the earth's crust due to its relatively lower density relative to the adjacent mantle. The density contrast is commonly the result of higher heat content of the plume, but may also be the result of chemical anomalies within the mantle (Perfit and Davidson, 2000, p. 89: Sigurdsson, 2000, p. 271). Mantle plumes are associated with intraplate rifting and volcanism. Mantle plumes are the hypothetical cause of hot spots (Hooper, 2000, p. 345).

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

Look at other dictionaries:

  • Mantle-Plume —   [ mæntl pluːm], Geologie: englische Bezeichnung für Manteldiapir …   Universal-Lexikon

  • 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

  • Mantle Plume — Hotspot Vulkanismus wird durch Plumes aus Quellen im tieferen Erdmantel gespeist Mantelplume (kurz auch Plume, aus dem englischen/französischen für „Helmbusch“, „Federschmuck“, „Rauchfahne“) ist ein geowissenschaftlicher Fachbegriff, der einen… …   Deutsch Wikipedia

  • mantle plume — noun An upwelling of abnormally hot rock within the Earths mantle …   Wiktionary

  • mantle plume — /mæntl ˈplum/ (say mantl ploohm) noun a fixed hotspot occurring within the earth s mantle which generates heat upwards to the earth s surface, the presence of which may be indicated by volcanic activity …   Australian English dictionary

  • mantle plume — Geol. plume (def. 10). [1970 75] * * * …   Universalium

  • mantle plume — Geol. plume (def. 10). [1970 75] …   Useful english dictionary

  • Plume tectonics — is a relatively new theory in geophysics which studies the movements of Mantle plumes under Tectonic plates at the depth of 2900km in the earth. Japanese geophysicists Fukao Yoshio (, Nagoya University) and Maruyama Shigenori(, visiting scholar… …   Wikipedia

  • Plume — may refer to:In fashion: * A prominent bird feather often used as an ornament ** Hackle, an ornamental plume on a uniform headdress In literature: * Plume (publishing), an American book publishing company * Plumes , a 1924 novel by Laurence… …   Wikipedia

  • Mantle plumes — Hotspot Vulkanismus wird durch Plumes aus Quellen im tieferen Erdmantel gespeist Mantelplume (kurz auch Plume, aus dem englischen/französischen für „Helmbusch“, „Federschmuck“, „Rauchfahne“) ist ein geowissenschaftlicher Fachbegriff, der einen… …   Deutsch Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.