Plate Tectonics and Continental Drift

Front

What is Plate Tectonics?

Back

The theory that explains the structure and movement of Earth's lithosphere, which is divided into tectonic plates that float on the semi-fluid asthenosphere.

Front

What is Continental Drift?

Back

The hypothesis that continents have moved over geological time and were once joined together in a single landmass called Pangaea.

Front

What are Tectonic Plates?

Back

Large sections of the Earth's lithosphere that move and interact with one another, causing geological activity.

Front

What is a Rift Valley?

Back

A lowland region formed by the divergence of tectonic plates, characterized by steep walls and a central valley.

Front

What is Seafloor Spreading?

Back

The process by which new oceanic crust is formed at mid-ocean ridges as tectonic plates move apart.

Front

What is a Divergent Boundary?

Back

A tectonic plate boundary where two plates move away from each other, often resulting in rift valleys or mid-ocean ridges.

Front

What is a Convergent Boundary?

Back

A tectonic plate boundary where two plates collide, leading to mountain formation, earthquakes, or volcanic activity.

Front

What is a Transform Boundary?

Back

A tectonic plate boundary where two plates slide past each other horizontally, causing earthquakes.

Front

What is the Mid-Atlantic Ridge?

Back

An underwater mountain range formed by the divergence of tectonic plates, where seafloor spreading occurs.

Front

What is the significance of the youngest rock at the Mid-Atlantic Ridge?

Back

The youngest rock is located at the center of the ridge, indicating that new oceanic crust is continuously being formed.