destructive plate margin

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• destructive plate margin —   in plate tectonics, a plate boundary where the relative movement of the crustal plates is towards each other and where one is subducted beneath the other thus being destroyed as it returns to the mantle. The collision may be between oceanic… …   Geography glossary

• convergent plate margin —   see destructive plate margin …   Geography glossary

• plate tectonics — plate tectonic, adj. Geol. a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past… …   Universalium

• Expansion terrestre — Pour les articles homonymes, voir Expansion. L écartement des masses continentales tandis que le rayon terrestre augmente, créant un nouveau plancher océanique …   Wikipédia en Français

• Tsunami — For other uses, see Tsunami (disambiguation) …   Wikipedia

• Convergent boundary — In plate tectonics, a convergent boundary, also known as a destructive plate boundary (because of subduction), is an actively deforming region where two (or more) tectonic plates or fragments of lithosphere move toward one another and collide. As …   Wikipedia

• Blind thrust earthquake — A blind thrust earthquake is an earthquake along a thrust fault that does not show signs on the earth s surface, hence the designation blind [http://earthquake.usgs.gov/learning/glossary.php?term=blind%20thrust%20fault] . Such faults, being… …   Wikipedia

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

• 2008 Sichuan earthquake — 2008 Earthquake 2008 Wenchuan Earthquake …   Wikipedia

• India — /in dee euh/, n. 1. Hindi, Bharat. a republic in S Asia: a union comprising 25 states and 7 union territories; formerly a British colony; gained independence Aug. 15, 1947; became a republic within the Commonwealth of Nations Jan. 26, 1950.… …   Universalium

• river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …   Universalium