1. Screening Geologic Sinks for CO 2 in Nevada Jon Price Nevada Bureau of Mines and Geology

2. “Preliminary Assessment of the Potential for Carbon Dioxide Disposal by Sequestration in Geological Settings in Nevada” Jonathan G. Price, Ronald H. Hess, Shane Fitch, James E. Faulds, Larry J. Garside, Lisa Shevenell, Sean Warren Nevada Bureau of Mines and Geology Report XYZ Conclusion: not much potential in Nevada

4. Conceptual model – Nevada oil and deep brine aquifers

5. Yes: White = alluvial deposits No: Gray = bedrock Blue = lakes

6. ES = bottom-hole temperature (93°C at 1,830 m) in the Eagle Springs oil field BF = reservoir temperature (120-130°C at about 1,625 m) in the Bacon Flat-Grant Canyon oil fields Depths greater than 1 km are preferred in Nevada, because of the high geothermal gradient and the need for a dense fluid CO 2 phase.

7. Yes: White = alluvial basins deeper than 1 km No: Gray = other areas

8. Buffers around Quaternary-active normal and strike-slip faults

9. Yes: White = areas not near active faults No: Gray = areas near active faults

10. ‘49ers Goldfield, Cripple Creek, and porphyries Carlin and other Nevada deposits We are in the midst of the biggest gold boom in American history.

11. EpithermalPluton-related Non-pluton- related Combined White = areas not permissive for metal deposits Gray = areas the USGS determined to be permissive for metal deposits

12. Yes: White = areas outside 5-km buffer around known mineral deposits (in USGS and NBMG databases) and including mining districts No: Gray = areas with likely mineral-resource development Known gold-silver deposits are mostly within 5 km of USGS historical mines.

13. Yes: White = areas outside 20-km buffer around known geothermal resources No: Gray = areas with potential for geothermal development

14. No: Gray = area underlain by the Deep Carbonate Aquifer

15. Yes: White = areas unlikely to undergo urban development in the 21st century No: Gray (green) = areas within 10 km of a town or major highway connecting cities or within 30 km of a current urban center

16. Yes: White = areas where permission may be granted No: Gray = Parks, National Recreation Areas, Wilderness Areas, Military Reservations, Nevada Test Site

17. Combined map taking into account basin depth; faults; areas with potential for mineral, geothermal, and water-resource development; and proximity to potential urban areas. Yes: White = areas not otherwise eliminated from consideration No: Gray = most of Nevada Conclusion: not much potential for conventional CO 2 sequestration Granite Springs Valley, Pershing County

18. Distribution of mafic (magnesium- and iron- rich) rocks, major electric power transmission lines, and railroads in Nevada. Other Considerations: Chemical reactors with mafic or ultramafic rocks (black areas) – industrial ecology with power plants and landfills near railroads Solution-mined salt caverns Basalt: 5.2 km 3 Carbon: 1 Gt Waste: 8.5 km 3

19. Screening Geologic Sinks for CO 2 in Nevada Jon Price Nevada Bureau of Mines and Geology www.nbmg.unr.edu jprice@unr.edu Conclusion: not much potential for conventional CO 2 sequestration in Nevada