igneous rock

Igneous Rocks: How Are They Formed?

Igneous rocks are formed from rising magma, make up the vast majority of the Earth's crust, and tell us a…

9 years ago

As a terrestrial planet, Earth is divided into layers based on their chemical and rheological properties. And whereas its interior…

15 years ago

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

16 years ago