sedimentary rock

Collisions between tectonic plates buried these sedimentary rocks deep in the Earth's crust where radiogenic heat released by the shale triggered melting of the lower crust.

The study focuses on 15 middle-Devonian sedimentary rock samples from the Appalachian basin in the U.S.

But Colorado's High Plains, which are dominated by sedimentary rocks, aren't crumpled at all.

Companies drill wells for the gas and, in many cases, shoot water and chemicals into the sedimentary rock to force methane up to the surface where they collect it and pipe it to refineries.

He was seeking to better understand the environmental conditions the island's ancient Middle Jurassic sedimentary rocks were formed in.