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Lessons in carbon storage from geological analogues

Mike Bickle and Niko Kampman
Lessons in carbon storage from geological analogues
Geology (Boulder) (April 2013) 41 (4): 525-526


Geological carbon storage involving injection of CO2 into geological formations is seen as a critical strategy to manage anthropogenic carbon emissions while society develops carbon-free energy sources. Mitigating the climatic impacts requires the stored carbon to be retained for at least 10 k.y., and there are considerable uncertainties in modeling the fate of the carbon over a time period much longer than we have observed the behavior of CO2 in geological formations. Key questions are (1) how quickly will the buoyant CO2 dissolve in formation brines (good), (2) how quickly will the CO2 brines react with silicate minerals and precipitate solid carbonate phases (good), (3) will CO2 or CO2-charged brines corrode cap-rocks and escape upward (bad), and (4) will CO2 penetrate up fault zones (bad)? Studies of naturally occurring CO2 accumulations may provide answers to the questions regarding its long-term fate. In places, natural CO2 is actively venting at the surface (for example, from numerous volcanic sources), but elsewhere CO2 has been retained in geological formations for tens or even hundreds of millions of years (e.g., in the Colorado Plateau, western United States; Gilfillan et al., 2009). The study of natural analogues for CO2 storage clearly can make important contributions to the debate about the security of geological storage, but interpreting the information may not be straightforward. The studies cited here are just making a start, while illustrating the richness of available information. (Copyright) 2013 Geological Society of America

ISSN: 0091-7613
EISSN: 1943-2682
Serial Title: Geology (Boulder)
Serial Volume: 41
Serial Issue: 4
Title: Lessons in carbon storage from geological analogues
Affiliation: University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom
Pages: 525-526
Published: 201304
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 10
Accession Number: 2014-001280
Categories: Environmental geology
Document Type: Serial
Bibliographic Level: Analytic
N33°40'00" - N40°30'00", W114°00'00" - W106°19'60"
N51°00'00" - N61°10'00", W04°00'00" - E11°00'00"
N37°00'00" - N42°00'00", W114°04'60" - W109°04'60"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201402
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