Reconstructing the temperature and origin of CO2 mineralisation in CarbFix calcite using clumped, carbon and oxygen isotopes

• Published in: Applied geochemistry Vol. 162; p. 105925
• Main Authors: Holdsworth, C.M., John, C.M., Snæbjörnsdóttir, S.Ó., Johnson, G., Sigfússon, B., Leslie, R., Haszeldine, R.S., Gilfillan, S.M.V.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2024
• Subjects: Calcite; Carbfix; carbon; carbon dioxide; Clumped isotopes; CO2 mineralisation; geochemistry; homogenization; isotope labeling; mineralization; oxygen; oxygen isotopes; Stable isotope geochemistry; temperature; CO2 mineralisation; Stable isotope geochemistry; Carbfix; Calcite; Clumped isotopes

In-situ CO2 mineralisation has been demonstrated as a rapid and secure mechanism of geological CO2 storage through a series of field demonstrations in Icelandic basalts by Carbfix. A key indicator of success in the first of these tests was the discovery of newly precipitated calcite on the monitorin...