Subarctic Weathering of Mineral Wastes Provides a Sink for Atmospheric CO 2

• Published in: Environmental Science & Technology
• Main Authors: Wilson, Siobhan A, Dipple, Greg, Power, Ian M, Barker, Shaun L L, Fallon, Stewart, Southam, Gordon
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: American Chemical Society
• Subjects: Keywords: Atmospheric CO; Isotopic data; Mine tailings; Modern carbon; Nesquehonite; Orders of magnitude; Oxygen isotopes; Quantitative estimates; River catchment; Silicate weathering; Stable carbon; Storage facilities; Carbonate minerals; Carbonation; Catchments; Subarctic
• Online Access: http://hdl.handle.net/1885/31473; https://doi.org/10.1021/es202112y; https://openresearch-repository.anu.edu.au/bitstream/1885/31473/5/es202112yxx.pdf.jpg; https://openresearch-repository.anu.edu.au/bitstream/1885/31473/7/01_Wilson_Subarctic_Weathering_of_2011.pdf.jpg

The mineral waste from some mines has the capacity to trap and store CO2 within secondary carbonate minerals via the process of silicate weathering. Nesquehonite [MgCO3•3H2O] forms by weathering of Mg-silicate minerals in kimberlitic mine tailings at th