subduction
pronunciation
How to pronounce subduction in British English:
UK [səb'dʌkʃən]
How to pronounce subduction in American English:
US [səb'dʌkʃən]
-
- Noun:
- a geological process in which one edge of a crustal plate is forced sideways and downward into the mantle below another plate
Word Origin
- subduction (n.)
- early 15c., "withdrawal, removal" (originally of noxious substances from the body), from Latin subductionem (nominative subductio) "a withdrawal, drawing up, hauling ashore," noun of action from past participle stem of subducere "to draw away, take away" (see subduce). Geological sense is attested from 1970, from French (1951).
Example
- 1. Sketch illustrating melting at a subduction zone .
- 2. Active subduction off the indian ocean coast of sumatra is responsible for both the region 's geography and its earthquakes .
- 3. Additional sedimentation occurred until a subduction zone formed off the coast .
- 4. How do earthquakes arise in undersea subduction zones , which account for 90 per cent of all seismic energy released worldwide ?
- 5. The cascadia subduction zone , just 50 miles off the coast and stretching from northern california to southern british columbia , is accumulating stresses that could unleash an earthquake of magnitude 9.0 and generate its own tsunami .