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Geophysical Monograph Series

 

Keywords

  • Carbon sequestration
  • Carbon cycle (Biogeochemistry

Index Terms

  • 1225 Geodesy and Gravity: Global change from geodesy
  • 1218 Geodesy and Gravity: Mass balance
  • 1040 Geochemistry: Radiogenic isotope geochemistry
  • 1835 Hydrology: Hydrogeophysics

Article

GEOPHYSICAL MONOGRAPH SERIES, VOL. 183, PP. 135-146, 2009

Natural analogs of geologic CO2 sequestration: Some general implications for engineered sequestration

J. E. Fessenden, P. H. Stauffer, and H. S. Viswanathan

Carbon dioxide emissions from geologic systems occur primarily from geothermal release of carbon in rock or subsurface biologic reservoirs. These systems can be very useful natural analogs for evaluating the impact of carbon dioxide leaks from engineered geologic storage reservoirs used to sequester CO2. We describe three natural analog sites that illustrate very different leak scenarios that could occur at such engineered repositories. The Mammoth Mountain site, located in California, provides an example of diffuse CO2 seepage. Crystal Geyser, Utah, is an example of a highly focused, episodic leakage geyser. Bravo Dome, NM, is an example of a CO2 reservoir where no leakage has been observed. We discuss monitoring techniques, technology placement, and modeling approaches that can be used at these natural analog sites to gain further insight into the viability of geologic CO2 sequestration.

Citation: Fessenden, J. E., P. H. Stauffer, and H. S. Viswanathan (2009), Natural analogs of geologic CO2 sequestration: Some general implications for engineered sequestration, in Carbon Sequestration and Its Role in the Global Carbon Cycle, Geophys. Monogr. Ser., vol. 183, edited by B. J. McPherson and E. T. Sundquist, pp. 135–146, AGU, Washington, D. C., doi:10.1029/2006GM000384.

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