Igneous intrusions are a type of rock feature. They form when molten rock cools below the surface of the Earth. Join Isla and Connor as they explore igneous rock landscape features at Traprain Law ...

Looking at an igneous rock, such as the granite along Stockton Hill Road at milepost 10, you’ll see a variety of minerals.

The classification of igneous rocks he has devised is based upon a sound plan, just as Esperanto is, but it may fail for the same reason that artificial languages fail, because it is too clean-cut ...

Find out more about available formats and browse any associated online resources. All Earth Science students need to understand the origins, environments, and basic processes that produce igneous and ...

Find out more about available formats and browse any associated online resources. Building upon the award-winning second edition, this comprehensive textbook provides a fundamental understanding of ...

Snowflake obsidian is a form of volcanic glass that features white or grayish “snowflake” shapes made of embedded ...

They look a bit like geodes, but they’re not exactly geodes. There are three types of rock: igneous, metamorphic, and ...

The rock comes from the Bushveld Igneous Complex in northeastern South Africa, according to the team’s Oct. 2 announcement. The unique geological formation came into existence 2 billion years ...