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Complex carbonate phases drive geologic CO2 mineralization

Journal Article · · Communications Earth & Environment
Geologic carbon sequestration in mafic and ultramafic reservoirs is a scalable strategy for carbon dioxide removal, offering permanent storage via mineralization as stable carbonates. However, there is limited information on the structure and composition of key mineralization endpoints during sequestration. Here, we unravel the atomic structure, composition, and nanoscale morphology of carbonates recovered from a field-scale demonstration of CO2 mineralization in basalt. Using transmission electron microscopy, we mapped mineralogical variations from the initial to later stages of subsurface carbonate growth and identified a previously unknown cation-ordered ankerite phase that exerts a primary control over carbonation processes. This study has provided a new understanding of subsurface carbonation pathways which will impact the parameterization of predictive geochemical models for future sequestration efforts in basalt formations.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2566948
Alternate ID(s):
OSTI ID: 2570358
Report Number(s):
PNNL-SA--194276
Journal Information:
Communications Earth & Environment, Journal Name: Communications Earth & Environment Journal Issue: 1 Vol. 6; ISSN 2662-4435
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

References (38)

Visualizing the Atomic Configuration of Carbonate Groups  in a (Cu,C)Ba2Ca3Cu4O11+δ Superconductor journal May 2023
Synthesis of the new compound CaFe(CO3)2 and experimental constraints on the (Ca,Fe)CO3 join journal December 1993
Dissolution of Columbia River Basalt under mildly acidic conditions as a function of temperature: Experimental results relevant to the geological sequestration of carbon dioxide journal May 2009
Injection and Monitoring at the Wallula Basalt Pilot Project journal January 2014
Inorganic synthesis of Fe–Ca–Mg carbonates at low temperature journal September 2009
An experimental study of basaltic glass–H2O–CO2 interaction at 22 and 50°C: Implications for subsurface storage of CO2 journal February 2014
Reaction path modelling of in-situ mineralisation of CO2 at the CarbFix site at Hellisheidi, SW-Iceland journal January 2018
New insights into Mn2+ and Mg2+ inhibition of calcite growth journal October 2022
Carbonate mineralization of volcanic province basalts journal March 2010
Insights into silicate carbonation processes in water-bearing supercritical CO2 fluids journal July 2013
On the evolution of dolomite stoichiometry and cation order during high-temperature synthesis experiments: An alternative model for the geochemical evolution of natural dolomites journal August 2011
Phase contrast STEM for thin samples: Integrated differential phase contrast journal January 2016
Quantification of CO 2 Mineralization at the Wallula Basalt Pilot Project journal September 2020
Exotic Carbonate Mineralization Recovered from a Deep Basalt Carbon Storage Demonstration journal September 2022
Facile Metal Release from Pore-Lining Phases Enables Unique Carbonate Zonation in a Basalt Carbon Mineralization Demonstration journal July 2023
Upscaling DAC Hubs with Wind Energy and CO2 Mineral Storage: Considerations for Large-Scale Carbon Removal from the Atmosphere journal December 2023
Field Validation of Supercritical CO 2 Reactivity with Basalts journal November 2016
Strain-Induced Metastable Phase Stabilization in Ga2O3 Thin Films journal January 2019
Pore-Scale Microenvironments Control Anthropogenic Carbon Mineralization Outcomes in Basalt journal November 2022
Ionic hydration enthalpies journal September 1977
Surface Chemistry and Dissolution Kinetics of Divalent Metal Carbonates journal February 2002
Potential for carbon dioxide sequestration in flood basalts: SEQUESTRATION IN FLOOD BASALTS journal December 2006
Geologically rapid aqueous mineral alteration at subfreezing temperatures in icy worlds journal March 2022
Phase contrast scanning transmission electron microscopy imaging of light and heavy atoms at the limit of contrast and resolution journal February 2018
Carbon dioxide storage through mineral carbonation journal January 2020
Direct air capture: process technology, techno-economic and socio-political challenges journal January 2022
An experimental study on kinetically‐driven precipitation of calcium‐magnesium‐iron carbonates from solution: Implications for the low‐temperature formation of carbonates in martian meteorite Allan Hills 84001 journal May 2000
Direct physical evidence of dolomite recrystallization journal May 2014
Rapid carbon mineralization for permanent disposal of anthropogenic carbon dioxide emissions journal June 2016
Net-zero emissions energy systems journal June 2018
Dissolution enables dolomite crystal growth near ambient conditions journal November 2023
Composition-induced microstructures in rhombohedral carbonates journal March 1987
Synthesis, characterization, and energetics of solid solution along the dolomite-ankerite join, and implications for the stability of ordered CaFe(CO 3 ) 2 journal October 1996
On twinning and microstructures in calcite and dolomite journal January 2008
STEM investigation of exsolution lamellae and "c" reflections in Ca-rich dolomite from the Platteville Formation, western Wisconsin journal March 2013
An Overview of the Status and Challenges of CO2 Storage in Minerals and Geological Formations journal November 2019
Tin-bearing magnetite with nanoscale Mg-Si defects: Evidence for the early stages of mineralization in a skarn system journal January 2023
Diffraction Features from (101¯4) Calcite Twins Mimicking Crystallographic Ordering journal July 2021

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