Iceland is located on a divergent plate boundary. This means that the tectonic plates are moving apart, allowing magma to rise from the Earth's mantle and create new crust.

Here's why Iceland is a great example of a divergent boundary:

* Volcanic Activity: Iceland is one of the most volcanically active regions on Earth, with numerous volcanoes and frequent eruptions. This is due to the constant upwelling of magma at the boundary.

* Mid-Atlantic Ridge: Iceland sits directly on the Mid-Atlantic Ridge, a major underwater mountain range that marks the boundary between the North American and Eurasian tectonic plates.

* Rift Valley: Iceland features a rift valley, a depression that forms as the plates pull apart.

The constant volcanic activity and geological changes make Iceland a unique and fascinating place to study plate tectonics.