The Marcellus Formation is a black shale that may contain limestone beds and concentrations of iron pyrite (FeS2) and siderite (FeCO3). Its sedimentary structure, or bedding, is moderately well ...

Despite a slow down in the number of new natural gas wells in the Marcellus Shale region of Northeast Pennsylvania, new research led by Drexel University finds that atmospheric methane levels in the ...

Mackey’s research, published recently in Nature Scientific Reports, says the brine water that lies deep within the Marcellus Shale — and comes to the surface during gas production — could provide ...

This is the Marcellus shale, a family of rocks rich in fossil fuels. For Mr Wyman, owner of a local crane company, ... In economic terms, a fossil-fuel trap would pose two risks for America.