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HomeHomework HelpgeologyPlate Tectonics

Plate Tectonics

Plate tectonics is the scientific theory that explains the movement of the Earth's lithosphere, which is divided into tectonic plates that float on the semi-fluid asthenosphere beneath. This movement is responsible for various geological phenomena, including earthquakes, volcanic activity, and the formation of mountain ranges.

intermediate
3 hours
Geology
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Overview

Plate tectonics is a fundamental theory in geology that explains the movement of the Earth's lithosphere, which is divided into tectonic plates. These plates float on the semi-fluid asthenosphere and interact at their boundaries, leading to various geological phenomena such as earthquakes and volcan...

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Key Terms

Tectonic Plates
Large sections of the Earth's lithosphere that move and interact with each other.

Example: The Pacific Plate is one of the largest tectonic plates.

Lithosphere
The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Example: The lithosphere is broken into tectonic plates.

Asthenosphere
The semi-fluid layer beneath the lithosphere that allows tectonic plates to move.

Example: The asthenosphere is responsible for the movement of tectonic plates.

Convergent Boundary
A tectonic plate boundary where two plates collide.

Example: The Himalayas were formed at a convergent boundary.

Divergent Boundary
A tectonic plate boundary where two plates move apart.

Example: The Mid-Atlantic Ridge is a divergent boundary.

Transform Boundary
A tectonic plate boundary where two plates slide past each other.

Example: The San Andreas Fault is a transform boundary.

Related Topics

Earthquake Engineering
The study of designing structures to withstand seismic forces from earthquakes.
advanced
Volcanology
The study of volcanoes, lava, magma, and related geological phenomena.
intermediate
Geological Hazards
The study of natural hazards caused by geological processes, including earthquakes and landslides.
intermediate

Key Concepts

Tectonic PlatesPlate BoundariesEarthquakesVolcanoes