Shale refers to a type of rock that is made up of tiny particles, like mud or clay. It is often found in layers or veins and can be easily split into thin sheets. Full definition
In recent years, natural gas from shale gas deposits has become a major new source in the United States. (ucsusa.org)
Generally, the increased supply of shale oil in the United States would have resulted in lowering world oil prices; but global events in oil markets have restricted production in several oil - producing nations. (instituteforenergyresearch.org)
Wearing my academic hat, I'm currently helping * the new Center for Energy Governance and Security at Korea's Hanyang University develop partnerships here to examine how to foster responsible development of shale gas in China as a near - term path away from coal. (dotearth.blogs.nytimes.com)