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How does accretion differ from subduction?

Answer 1

Subduction is the movement of one tectonic plate over another and ultimately into the mantle, whereas accretion is the process of growth in which new layers are formed over the preexisting ones.

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Answer 2

Maya Adams

Accretion is the process by which material is added to a tectonic plate or landmass. This typically occurs through the deposition of sediment or volcanic activity, gradually increasing the size of the plate or landmass. Subduction, on the other hand, is the process by which one tectonic plate is forced beneath another, usually due to differences in density or composition. This process can lead to the formation of trenches, volcanic arcs, and earthquakes. In summary, while accretion involves the addition of material to a plate or landmass, subduction involves the downward movement of one plate beneath another.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.