Exotic Carbonate Mineralization Recovered from a Deep Basalt Carbon Storage Demonstration
Journal Article
·
· Environmental Science and Technology
- Univ. of Wyoming, Laramie, WY (United States)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Mitigating climate change require transformational advances for carbon dioxide removal, including geologic carbon sequestration in reactive subsurface environments. The Wallula Basalt Carbon Storage Pilot Project demonstrated that CO2 injected into >800 m deep Columbia River Basalt Group flow top reservoirs mineralizes on month-year timescales. Herein, we present new optical petrography, micro-computed X-ray tomography, and electron microscopy results sidewall cores collected two years after CO2 injection. As no other anthropogenic carbonates from geologic carbon storage field studies have been recovered, this world-unique sample suite provides unparalleled insight for subsurface carbon mineralization products and paragenesis. Chemically-zoned nodules with Ca/Mn-rich cores and Fe-dominant outer rims are prominent examples of the neoformed carbonate assemblages with ankerite-siderite compositions and exotic divalent cation correlations. Further, paragenetic insights for the timing of aragonite, silica, and fibrous zeolites are clarified based on mineral texture and spatial relationships, along with time-resolved downhole fluid sampling. Collectively, these results clarify the mineralogy, chemistry, and paragenesis of carbon mineralization, providing insight into the ultimate fate and transport of CO2 in reactive mafic-ultramafic reservoirs
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
- Grant/Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1895590
- Report Number(s):
- PNNL-SA-172801
- Journal Information:
- Environmental Science and Technology, Journal Name: Environmental Science and Technology Journal Issue: 20 Vol. 56; ISSN 0013-936X
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
3D Quantification of Pore Networks and Anthropogenic Carbon Mineralization in Stacked Basalt Reservoirs
Pore-Scale Microenvironments Control Anthropogenic Carbon Mineralization Outcomes in Basalt
Facile Metal Release from Pore-Lining Phases Enables Unique Carbonate Zonation in a Basalt Carbon Mineralization Demonstration
Journal Article
·
Wed Jan 31 19:00:00 EST 2024
· Environmental Science and Technology
·
OSTI ID:2335501
Pore-Scale Microenvironments Control Anthropogenic Carbon Mineralization Outcomes in Basalt
Journal Article
·
Tue Nov 29 19:00:00 EST 2022
· ACS Earth and Space Chemistry
·
OSTI ID:1906315
Facile Metal Release from Pore-Lining Phases Enables Unique Carbonate Zonation in a Basalt Carbon Mineralization Demonstration
Journal Article
·
Thu Jul 27 20:00:00 EDT 2023
· Environmental Science and Technology
·
OSTI ID:2203507