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 -- ...

Metamorphic rocks record the transformation of protoliths under varying pressures, temperatures and fluid compositions. Mineral assemblages such as garnet, staurolite and kyanite define metamorphic ...

Rocks may seem like ordinary objects beneath our feet, but they hold extraordinary stories about the Earth and play a vital ...

In the course of a week, we have ventured from Island Park to spend time in the Upper Blackfoot River near Soda Springs, Grand Teton National Park, Sinks Canyon near Lander, Wyoming and a few nights ...