The rock formed by sandstone being injected as a liquid into surrounding layers of granite. Igneous rocks start life as a liquid, but sandstone forms by sedimentation, and will usually bend or ...

Continental crust is largely granite, oceanic crust is largely basalt. Both are igneous rocks (igneous rocks are those that have formed directly from magma-molten rock).

Along the Ute Pass Fault, the Tava sandstone forms dikes and similar formations within the billion-year-old Pikes Peak Granite, as well as some even older crystalline rocks to the south.

The Devil’s Tower in Wyoming, USA is a famous igneous rock formation. It was originally formed underground but the sedimentary rocks around it were worn away leaving just the igneous rock behind.

The relationship is fascinating because it is backward: ordinarily, it is igneous rocks such as granite that would that intrude into sedimentary rocks.

Metamorphic rock starts off as either igneous or sedimentary rock, but because of natural (or unnatural) factors like heat, chemicals, or pressure, they turn into a different kind of rock altogether.

Igneous rocks are formed from molten material that cools and crystallizes below the Earth’s surface; dikes occur when this rock pushes its way into existing joint fractures.

Granites are the igneous rock remnants of the plumbing systems below extinct volcanos. The granite formation left when lava cools without erupting is known as a batholith.

The landscape of the Karnataka state in southern India is renowned for its rocks. And the aren't ordinary outcrops, but instead a series of massive monolithic formations planted across the lush ...