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  • Carbon-storage project combines innovation and outreach

    Robert J. Finley, principal investigator on the Illinois Basin - Decatur Project, turns the main valve to start injection of CO2 into the Mount Simon Sandstone.

    Robert J. Finley, principal investigator on the Illinois Basin - Decatur Project, turns the main valve to start injection of CO2 into the Mount Simon Sandstone.

    Photo by Daniel Byers, Illinois State Geological Survey

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      Robert J. Finley, principal investigator on the Illinois Basin - Decatur Project, turns the main valve to start injection of CO2 into the Mount Simon Sandstone.

      Photo by Daniel Byers, Illinois State Geological Survey

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      The geologic layers of the Illinois Basin are ideal for carbon storage. The carbon dioxide is injected into sandstone, where it fills in the gaps between the grains of sand. The sandstone lies beneath three layers of shale, which seal the carbon dioxide underground.

      Graphic courtesy Sallie Greenberg

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      An injection well sends compressed carbon dioxide 7,000 feet underground for permanent storage in the sandstone deep beneath Decatur, Ill.

      Photo by Daniel Byers, Illinois State Geological Survey

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