subduction
Noun
Meaning
The action of being pushed or drawn beneath another object.
(geology) The process of one tectonic plate moving beneath another and sinking into the mantle at a convergent plate boundary.
The act of subducting or taking away.
Arithmetical subtraction.
(mathematics, mathematical analysis) A surjection between diffeological spaces such that the target is identified as the pushforward of the source.
Source: en.wiktionary.orgSynonyms
Antonyms
Show all antonymsHypernyms
Related terms
Phrases with the word
Examples
As a result of remelting of basaltic oceanic crust due to subduction, the cores of the first continents grew large enough to withstand crustal recycling processes.
At the consumption edges of the plate, the material has thermally contracted to become dense, and it sinks under its own weight in the process of subduction at an ocean trench.
As cooling continued, subduction and dissolving in ocean water removed most COmain from the atmosphere but levels oscillated wildly as new surface and mantle cycles appeared. citation.
In contrast, eclogitic diamonds contain organic carbon from organic detritus that has been pushed down from the surface of the Earth's crust through subduction (see plate tectonics ) before transforming into diamond.
For example, subduction of the Cocos Plate beneath the North American Plate at the Middle America Trench is believed to have caused the 1985 Mexico City earthquake that killed as many as 40,000 people.
A subduction zone is a type of contact between different crustal plates where heavier crust slides below lighter crust.