Definition of subduction in English:
subduction
noun səbˈdʌkʃ(ə)nsəbˈdəkʃən
mass nounGeology The sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
as modifier subduction zone
Example sentencesExamples
- There are two possible tectonic settings for the deep subduction of Indian Plate continental crust in the early Tertiary.
- These extensional faults were reactivated as reverse faults during Neogene compression associated with subduction beneath the North Island.
- These rocks are interpreted as a forearc succession that developed in association with north-directed subduction beneath the Lhasa terrane.
- Nevertheless, subduction of Africa beneath Iberia starting in the Late Eocene has been proposed.
- The Spontang ophiolitc, for example, is associated with partial subduction of buoyant continental crust.
Derivatives
verb ˌsʌbˈdʌktsəbˈdək(t)
[with object]be subductedGeology (of a plate of the earth’s crust) undergo subduction.
oceanic crust is subducted underneath continental tectonic plates
Example sentencesExamples
- no object the Pacific plate was subducting to the south-west beneath the Australian plate
- What is the relationship at depth between the inboard strike-slip boundary and the slab subducted at the outboard subduction zone?
- Distinct differences in the seismic reflection waveforms are expected from the subduction megathrust as sediments subduct through significant sediment-to-rock transitions.
- In the early Himalayan case described here, the driving force would have been slab pull with Indian Plate continental crust and lithospheric mantle being subducted at a steep subduction angle.
Origin
1970s: via French from Latin subductio(n-), from subduct- 'drawn from below', from the verb subducere.
Definition of subduction in US English:
subduction
nounsəbˈdəkʃənsəbˈdəkSHən
Geology The sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
as modifier subduction zone
Example sentencesExamples
- There are two possible tectonic settings for the deep subduction of Indian Plate continental crust in the early Tertiary.
- These rocks are interpreted as a forearc succession that developed in association with north-directed subduction beneath the Lhasa terrane.
- These extensional faults were reactivated as reverse faults during Neogene compression associated with subduction beneath the North Island.
- The Spontang ophiolitc, for example, is associated with partial subduction of buoyant continental crust.
- Nevertheless, subduction of Africa beneath Iberia starting in the Late Eocene has been proposed.
Origin
1970s: via French from Latin subductio(n-), from subduct- ‘drawn from below’, from the verb subducere.