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Basalt

Adapted from Wikipedia · Explorer experience

A stunning view of tall, column-shaped rocks glowing in the sunset light at Cape Stolbchaty in Russia.

What is Basalt?

Basalt is a very common type of rock. It forms when lava from volcanoes cools quickly near the surface of Earth or other planets. This lava is rich in magnesium and iron and has a low amount of silica, which makes it flow easily and cover large areas.

Where Can We Find Basalt?

More than 90% of all volcanic rock on Earth is basalt. We can also find it on the Moon, Mars, and Venus. Basalt helps scientists learn about what happens deep inside our planet. It tells us stories about Earth's history and other planets too.

Interesting Facts About Basalt

Basalt is usually dark grey or black because of minerals like augite, but it can also be lighter if it has more plagioclase. When basalt lava erupts from volcanoes, it can create huge flat areas called flood basalts. These rocks are studied to learn about the history of Earth and other planets. Basalt is very important for scientists because it gives clues about processes deep inside Earth.

Images

A scientific diagram showing different types of volcanic rocks, with the basalt area highlighted.
A close-up of vesicular basalt rock from Sunset Crater in Arizona, showing its porous texture with a coin for size comparison.
Basalt columns formed by cooled lava in Yellowstone National Park.
Stunning basalt columns forming a unique natural landscape in Hungary.
The Giant's Causeway is a famous natural rock formation located in County Antrim, Northern Ireland.
Columnar basalts are tall, column-like structures formed from cooled lava. They create interesting patterns in nature!
A colorful microscopic view of basalt rock crystals, showing different minerals in bright patterns under polarized light.
The Giant's Causeway is a famous natural rock formation on the coast of Northern Ireland, created by ancient volcanic activity.
Hexagonal basalt columns in Boyabat, Turkey
Pillow basalts are bubble-shaped lava formations found on the ocean floor near Hawaii.
A steep cliff showing tall, column-shaped rocks formed from ancient volcanic activity in Brazil.
A scientific diagram showing how volcanic rocks like basalt and andesite are classified based on their mineral content.

Related articles

Lava
Iron
Moon
Mars
Venus

This article is a child-friendly adaptation of the Wikipedia article on Basalt, available under CC BY-SA 4.0.

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