There are three types of rock found on Earth. These are igneous, metamorphic and sedimentary. Each rock type is formed in a different way. For example, the rock malachite is mostly made of the ...

The continental crust covers nearly a third of the Earth’s surface. It is buoyant—being less dense than the crust under the surrounding oceans—and is compositionally evolved, dominating the Earth’s ...

Ohio State University geologists have found that important rocks from Niagara Gorge -- rock formations that are used to judge the ages of rocks and fossils around North America -- formed five times ...

Human activity has significantly altered the earth’s landscape — so much so that many scientists have said the planet began a new geological chapter called the Anthropocene era. Many of these changes ...