There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Why don’t rocks burn? – Luke, age 4, New Market, ...

These are formed when either igneous or sedimentary rocks are changed. Heat and/or pressure will cause the elements in the original rock to react and re-form. Metamorphic rocks are highly ...

The origin and evolution of igneous and metamorphic rocks. Emphasis will be on physical and chemical processes, magma transport and crystallization, phase equilibria, development of metamorphic facies ...

They look a bit like geodes, but they’re not exactly geodes. There are three types of rock: igneous, metamorphic, and sedimentary. Thundereggs form through igneous processes. Igneous rocks form ...

For geologists, a continent is a large area of thick continental crust composed of granite or similar igneous rocks, forming the continental base, in combination with metamorphic rocks ...

Marble is a metamorphic rock, it is highly decorative and used for statues. Igneous rocks are formed from molten (liquid) rock that has cooled and solidified. The inside of the Earth is so hot ...