volcanoes

Composite Volcano

[/caption] Geologists have identified 3 major types of volcanoes. There's the shield volcano, formed from low viscosity lava that can…

15 years ago

What is a Volcanic Neck?

Remember that strange rock formation in Close Encounters of the Third Kind. It looked like the top of a toothpaste…

15 years ago

Mantle Plume

[/caption] One of the mysteries of Earth science is hotspots. While most volcanoes are found at plate boundaries, where two…

15 years ago

Continental Crust

The crust is the top layer of the Earth's Surface. Did you know that there are 2 types, though? One…

15 years ago

Yellowstone Eruption

[/caption] Millions of people visit Yellowstone National Park every year, but how many think about the fact that they're standing…

15 years ago

Barcena Volcano

[/caption] Barcena is a volcano located on the island of San Benedicto, the third largest island of the Revillagigedo Islands.…

15 years ago

Basalt

[/caption] Basalt is a hard, black volcanic rock with less than 52% silica. Because of this low silica content, basalt…

15 years ago

What are Active Volcanoes?

Geologists classify volcanoes into three distinct groups: dormant, extinct and active volcanoes. Dormant volcanoes haven't erupted in a long time,…

16 years ago

A’a Lava

[/caption] There are several different kinds of lava, depending on the chemical composition and temperature of the molten rock that…

16 years ago

Cinder Cone Volcanoes

[/caption] Picture a volcano in your mind. You're probably thinking of a cinder cone volcano, the simplest type of volcano.…

16 years ago