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HomeHomework HelpgeologyTectonics of Subduction Zones

Tectonics of Subduction Zones

Tectonics of subduction zones refers to the geological processes and interactions that occur when one tectonic plate is forced beneath another into the Earth's mantle, leading to the formation of deep ocean trenches, volcanic arcs, and significant seismic activity. This phenomenon is a key component of the Earth's lithospheric dynamics and plate tectonics.

intermediate
3 hours
Geology
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Overview

Subduction zones are critical areas in the study of geology, where one tectonic plate is forced beneath another. This process not only leads to the formation of significant geological features like oceanic trenches and volcanic arcs but also plays a crucial role in the occurrence of earthquakes. Und...

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Key Terms

Subduction
The process where one tectonic plate moves under another.

Example: The Pacific Plate subducts beneath the North American Plate.

Tectonic Plate
Large sections of the Earth's crust that move and interact.

Example: The Eurasian Plate is one of the major tectonic plates.

Trench
A deep, narrow depression in the ocean floor formed by subduction.

Example: The Mariana Trench is the deepest oceanic trench.

Volcanic Arc
A series of volcanoes formed above a subducting plate.

Example: The Andes Mountains are a volcanic arc.

Earthquake
A sudden shaking of the ground caused by the movement of tectonic plates.

Example: The 2011 Tōhoku earthquake was caused by subduction.

Mantle
The layer of the Earth between the crust and the core.

Example: The mantle is where subducted plates sink.

Related Topics

Plate Tectonics
Study of the movement and interaction of Earth's plates.
intermediate
Earthquake Engineering
Field focused on designing structures to withstand earthquakes.
advanced
Volcanology
The study of volcanoes and volcanic activity.
intermediate

Key Concepts

Plate TectonicsSubduction ProcessEarthquakesVolcanism