Often referred to as the rock that burns, oil shale boasts a high concentration of petroleum-like kerogens that will ignite when exposed to enough heat. The name is misleading. Oil shale, which is a ...

Sedimentary rocks close sedimentary rockSedimentary rocks are those which have been formed due to sediments that have built up over a long period of time, usually under water. are formed from ...

Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such as lakes or ocean basins) have the best chance of being preserved. This is because they ...

or simply the Marcellus Shale) is a unit of marine sedimentary rock found in eastern North America. Named for a distinctive outcrop near the village of Marcellus, New York in the United States ...