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 ...

The composition of the magma, including the amount of silica and the presence of various gases, also influences the types of minerals and textures found in the resulting igneous rocks. Thundereggs ...

Petrology is the study of the macroscopic and microscopic mineralogical and chemical composition of rocks. In addition to assessing sedimentary, igneous, and metamorphic rocks that are accessible ...