Sedimentary rocks are made up of pieces of older rocks (igneous, metamorphic, and sedimentary) and organic remains (shells, bone, etc.). When rocks break apart from erosion they are transported by ...

Introduction -- Physical properties of magma -- Intrusion of magma -- Forms of igneous bodies -- Cooling of igneous bodies and other diffusion processes -- Classification of igneous rocks -- ...

The British Isles are composed of a remarkable combination and variety of rock types assembled over millennia. We can never hope to understand all their curios and quirks in a short series of articles ...

MACK SLACK: Look at all you little rocks. Sitting there looking up at me, not knowing where you came from or what you're gonna be. Well, let me teach you the oldest story on the planet. The rock cycle ...

THE closing years of the nineteenth century witnessed a revival of interest in the petrology of gneous rocks, which must be regarded as marking an important stage in the development of that subject.