Carbon dioxide sequestration in deep-sea basalt

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doi: 10.1073/pnas.0804397105
Author(s): Goldberg, David S.; Takahashi, Taro; Slagle, Angela L.
Author Affiliation(s): Primary:
Lamont-Doherty Earth Observatory, Palisades, NY, United States
Volume Title: Proceedings of the National Academy of Sciences of the United States of America
Source: Proceedings of the National Academy of Sciences of the United States of America, 105(29), p.9920-9925. Publisher: National Academy of Sciences, Washington, DC, United States. ISSN: 0027-8424
Note: In English. 45 refs.; illus., incl. charts, sketch map
Summary: Developing a method for secure sequestration of anthropogenic carbon dioxide in geological formations is one of our most pressing global scientific problems. Injection into deep-sea basalt formations provides unique and significant advantages over other potential geological storage options, including (i) vast reservoir capacities sufficient to accommodate centuries-long U.S. production of fossil fuel CO2 at locations within pipeline distances to populated areas and CO2 sources along the U.S. west coast; (ii) sufficiently closed water-rock circulation pathways for the chemical reaction of CO2 with basalt to produce stable and nontoxic (Ca2+, Mg2+, Fe2+)CO3 infilling minerals, and (iii) significant risk reduction for post-injection leakage by geological, gravitational, and hydrate-trapping mechanisms. CO2 sequestration in established sediment-covered basalt aquifers on the Juan de Fuca plate offer promising locations to securely accommodate more than a century of future U.S. emissions, warranting energized scientific research, technological assessment, and economic evaluation to establish a viable pilot injection program in the future.
Year of Publication: 2008
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 22 Environmental Geology; Aquifers; Basalts; Carbon dioxide; Carbon sequestration; Carbonates; Chemical reactions; Climate change; Cores; Deep-sea environment; East Pacific; Endeavour Ridge; Expedition 301; Fluid injection; Fluid phase; Fractured materials; Ground water; IODP Site U1301; Igneous rocks; Integrated Ocean Drilling Program; Juan de Fuca Ridge; Lava; Marine environment; North Pacific; Northeast Pacific; Pacific Ocean; Pillow lava; Porosity; Volcanic rocks; Well-logging
Coordinates: N400000 N473000 W1250000 W1290000
N474500 N474600 W1274600 W1274600
Record ID: 2010092382
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