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A Geological Overview of Frac Sand in the United States

November 17, 2014
By Mary Ellen Benson and Anna B. Wilson US Geological Survey

Mary Ellen Benson and Anna B. Wilson from the US Geological Survey presented this Powerpoint presentation at the Frac Sand Insider Conference, 2014.

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Mary Ellen Benson and Anna B. Wilson from the US Geological Survey presented this Powerpoint presentation at the Frac Sand Insider Conference, 2014. The report describes frac sand as a naturally occurring sand that is used as a proppant during unconventional oil and natural gas production, and discusses the ideal properties for the silica sand used in the fracking process.

Frac sand has high silica content, with more than 99 percent of the grains composed of the mineral quartz. The report also describes the ideal shape, size, and strength for frac sand.

The report also uses stratigraphic sections to depict the deposits that have the most-sought-after deposits of frac sand in the Midwest and in Texas and Oklahoma, as well as place these rock units in context of their ages in geologic time.

This presentation is quite technical, and is of limited use to the general reader. However, those with geology backgrounds will be able to appreciate the illustrations of stratigraphic sections and discussion of the different rock units that contain economic deposits of frac sand.  

 

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Energy Environment