Chemistry and Physics of Minerals and Rocks/Volcanology
Potential for carbon dioxide sequestration in flood basalts
Article first published online: 2 DEC 2006
Copyright 2006 by the American Geophysical Union.
Journal of Geophysical Research: Solid Earth (1978–2012)
Volume 111, Issue B12, December 2006
How to Cite
2006), Potential for carbon dioxide sequestration in flood basalts, J. Geophys. Res., 111, B12201, doi:10.1029/2005JB004169., , , , , and (
- Issue published online: 2 DEC 2006
- Article first published online: 2 DEC 2006
- Manuscript Accepted: 18 AUG 2006
- Manuscript Revised: 15 JUN 2006
- Manuscript Received: 18 NOV 2005
- geologic sequestration;
- climate change;
 Flood basalts are a potentially important host medium for geologic sequestration of anthropogenic CO2. Most lava flows have flow tops that are porous and permeable and have enormous capacity for storage of CO2. Interbedded sediment layers and dense low-permeability basalt rock overlying sequential flows may act as effective seals allowing time for mineralization reactions to occur. Laboratory experiments confirm relatively rapid chemical reaction of CO2-saturated pore water with basalts to form stable carbonate minerals. Calculations suggest a sufficiently short time frame for onset of carbonate precipitation after CO2 injection that verification of in situ mineralization rates appears feasible in field pilot studies. If proven viable, major flood basalts in the United States and India would provide significant additional CO2 storage capacity and additional geologic sequestration options in certain regions where more conventional storage options are limited.