"Scroll Down through History" displays the layers of rock exposed within the Grand ... Toroweap Formation, and Hermit Shale. The Coconino Sandstone layer was deposited not by the sea, but by ...

Chalk, limestone, shale, and sandstone are all examples of sedimentary rocks. All these different sedimentary rocks are formed from the broken remains of other rocks that become joined together.

Yellow-spotted woodland salamanders are found in shale and sandstone rock faces in West Virginia, Virginia, Kentucky and Tennessee. The same sites are targeted by mountaintop removal mining, which ...