Definitions for subduction
səbˈdʌk ʃənsub·duc·tion

Princeton's WordNetRate this definition:5.0 / 1 vote

1. subductionnoun

   a geological process in which one edge of a crustal plate is forced sideways and downward into the mantle below another plate

WiktionaryRate this definition:0.0 / 0 votes

1. subductionnoun

   the action of being pushed or drawn beneath another object.

2. Etymology: From sub meaning under or below, and ductum meaning to draw or conduct.

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. Subductionnoun

   Etymology: from subduct

   1. The act of taking away.

   Possibly the Divine Beneficence subducting that influence, which it communicated from the time of their first creation, they were kept in a state of immortality ’till that moment of the subduction. Matthew Hale, Origin of Mankind.

   2. Arithmetical substraction.

   Suppose we take the other operation of arithmetick, subduction: if out of that infinite multitude of antecedent generations we should subduct ten, the residue must be less by ten than it was before that subduction, and yet still the quotient be infinite. Matthew Hale.

WikipediaRate this definition:0.0 / 0 votes

1. Subduction

   Subduction is a geological process in which the oceanic lithosphere and some continental lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle. A region where this process occurs is known as a subduction zone, and its surface expression is known as an arc-trench complex. The process of subduction has created most of the Earth's continental crust. Rates of subduction are typically measured in centimeters per year, with rates of convergence as high as 11 cm/year.Subduction is possible because the cold oceanic lithosphere is slightly denser than the underlying asthenosphere, the hot, ductile layer in the upper mantle underlying the cold, rigid lithosphere. Once initiated, stable subduction is driven mostly by the negative buoyancy of the dense subducting lithosphere. The slab sinks into the mantle largely under its weight.Earthquakes are common along the subduction zone, and fluids released by the subducting plate trigger volcanism in the overriding plate. If the subducting plate sinks at a shallow angle, the overriding plate develops a belt of deformation characterized by crustal thickening, mountain building, and metamorphism. Subduction at a steeper angle is characterized by the formation of back-arc basins.

ChatGPTRate this definition:0.0 / 0 votes

1. subduction

   Subduction is a geological process that occurs at convergent boundaries where one tectonic plate moves under another and is forced to sink due to gravity into the mantle. This process results in features such as deep oceanic trenches, volcanic arcs, earthquake activity, and the formation of mountain ranges.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Subductionnoun

   the act of subducting or taking away

2. Subductionnoun

   arithmetical subtraction

3. Etymology: [L. subductio.]

WikidataRate this definition:0.0 / 0 votes

1. Subduction

   In geology, subduction is the process that takes place at convergent boundaries by which one tectonic plate moves under another tectonic plate and sinks into the mantle as the plates converge. Regions where this process occurs are known as subduction zones. Rates of subduction are typically measured in centimeters per year, with the average rate of convergence being approximately 2 to 8 cm per year. Plates include both oceanic crust and continental crust. Stable subduction zones involve the oceanic crust of one plate sliding beneath the continental crust or oceanic crust of another plate due to the higher density of the oceanic crust. That is, the subducted crust is always oceanic while the overriding crust may or may not be oceanic. Subduction zones are often noted for their high rates of volcanism, earthquakes, and mountain building. Orogenesis, or mountain-building, occurs when large pieces of material on the subducting plate are pressed into the overriding plate. These areas are subject to many earthquakes, which are caused by the interactions between the subducting slab and the mantle, the volcanoes, and the mountain-building related to island arc collisions.

Matched Categories

1. • Geological Process

How to pronounce subduction?

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How to say subduction in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of subduction in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of subduction in Pythagorean Numerology is: 2

Examples of subduction in a Sentence

1. Van Hinsbergen:

   Subduction, the plunging of one plate under the other, is the basic way in which mountain chains are formed, our research provided a large number of insights, also about volcanism and earthquakes, that we are already applying elsewhere. You can even predict, to a certain extent, what a given area will look like in the far future.

2. Research Professor Suzanne Carbotte:

   Because the fault zone is so quiet seismically, we really don’t have a good picture of where the part of the fault that generates the big earthquakes is located. At other subduction zones, there are many small earthquakes recorded along the megathrust fault that scientists can use to locate the fault and study its properties, but not at Cascadia.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=subduction
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Subduction
3. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=subduction
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Subduction
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/subduction
7. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=subduction