Marcellus shale, near Marcellus New York, source of natural gas , subject of fracking controversy

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Marcellus shale, near Marcellus, New York, source rock of huge quantities of natural gas and subject of the "fracking" controvercy, showing fossils

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Size: 5760px × 3840px
Photo credit: © John Cancalosi / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: crust, crystalline, debate, deposit, deposited, drilling, earth, element, elemental, eon, frack, fracking, fracturing, gas, geologist, geology, geometric, hardness, hydraulic, industrial, metallic, metallurgical, metallurgy, mined, mineralogy, minerals, mining, molecule, natural, ores, political, precious, resource, rock, scientific, sedimentary, specimens, symmetrical, symmetry, valuable