Metamorphic rocks are formed in a particular way. A clue to understanding how they are formed is in their name, 'metamorphic', which suggests they have changed form.

Why do Rocks Melt on Earth, Anyway? Discover the melting point of rocks and how it influences basalt magma formation through decompression and flux melting.

A new analysis of lunar rocks now supports the idea that the moon was born in a gigantic collision between the nascent Earth and a mysterious planet-size rock, scientists say. Earth formed about 4 ...

When you think of meteors, you might think of how the dinosaurs died. But rocks floating around in space are also a force for creation, and may even help us understand how life on Earth began.

Dr. Universe: How do mountains form? – Zane, age 8 Dear Zane, When you walk around on land, you are walking on top of Earth’s rocky crust. Below the crust is another thick layer of rock.

Not just any rock will do generally caves are formed from gypsum, limestone, dolomite or even salt. "You need a rock type that can dissolve in water," said Randall Orndorff, a geologist with the U ...

An international team used modern tools to explain repeating patterns of stones that form in cold landscapes.

Igneous rocks Igneous rocks are among the oldest types of rocks found on Earth. They form when hot, melted rock– known as magma (underground) or lava (on the surface) – cools and hardens.

Canada is the land of hockey, maple syrup, and a tendency to end every sentence with the word “eh” – it’s also home to the oldest rocks on Earth. A new study, published in Science, confirmed that the ...