Potential for offsetting diamond mine carbon emissions through mineral carbonation of processed kimberlite: An assessment of De Beers mine sites in South Africa and Canada

Evelyn M. Mervine, Siobhan A. Wilson, Ian M. Power, Gregory M. Dipple, Connor C. Turvey, Jessica L. Hamilton, Sterling Vanderzee, Mati Raudsepp, Colette Southam, Juerg M. Matter, Peter B. Kelemen, Johann Stiefenhofer, Zandile Miya, Gordon Southam

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

De Beers kimberlite mine operations in South Africa (Venetia and Voorspoed) and Canada (Gahcho Kué, Victor, and Snap Lake) have the potential to sequester carbon dioxide (CO2) through weathering of kimberlite mine tailings, which can store carbon in secondary carbonate minerals (mineral carbonation). Carbonation of ca. 4.7 to 24.0 wt% (average = 13.8 wt%) of annual processed kimberlite production could offset 100% of each mine site’s carbon dioxide equivalent (CO2e) emissions. Minerals of particular interest for reactivity with atmospheric or waste CO2 from energy production include serpentine minerals, olivine (forsterite), brucite, and smectite. The most abundant minerals, such as serpentine polymorphs, provide the bulk of the carbonation potential. However, the detection of minor amounts of highly reactive brucite in tailings from Victor, as well as the likely presence of brucite at Venetia, Gahcho Kué, and Snap Lake, is also important for the mineral carbonation potential of the mine sites.

Original languageEnglish
Pages (from-to)755-765
Number of pages11
JournalMineralogy and Petrology
Volume112
Early online date28 May 2018
DOIs
Publication statusPublished - Dec 2018
Event11th International Kimberlite Conference (IKC) - Gaborone, Botswana
Duration: 18 Sep 201722 Sep 2017

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Diamond mines
kimberlite
Carbonation
Republic of South Africa
Magnesium Hydroxide
carbon emission
Canada
diamond
Minerals
Carbon
diamonds
minerals
brucite
carbon
Tailings
mineral
Carbon Dioxide
Lakes
Carbonate minerals
Serpentine Asbestos

Cite this

Mervine, Evelyn M. ; Wilson, Siobhan A. ; Power, Ian M. ; Dipple, Gregory M. ; Turvey, Connor C. ; Hamilton, Jessica L. ; Vanderzee, Sterling ; Raudsepp, Mati ; Southam, Colette ; Matter, Juerg M. ; Kelemen, Peter B. ; Stiefenhofer, Johann ; Miya, Zandile ; Southam, Gordon. / Potential for offsetting diamond mine carbon emissions through mineral carbonation of processed kimberlite : An assessment of De Beers mine sites in South Africa and Canada. In: Mineralogy and Petrology. 2018 ; Vol. 112. pp. 755-765.
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abstract = "De Beers kimberlite mine operations in South Africa (Venetia and Voorspoed) and Canada (Gahcho Ku{\'e}, Victor, and Snap Lake) have the potential to sequester carbon dioxide (CO2) through weathering of kimberlite mine tailings, which can store carbon in secondary carbonate minerals (mineral carbonation). Carbonation of ca. 4.7 to 24.0 wt{\%} (average = 13.8 wt{\%}) of annual processed kimberlite production could offset 100{\%} of each mine site’s carbon dioxide equivalent (CO2e) emissions. Minerals of particular interest for reactivity with atmospheric or waste CO2 from energy production include serpentine minerals, olivine (forsterite), brucite, and smectite. The most abundant minerals, such as serpentine polymorphs, provide the bulk of the carbonation potential. However, the detection of minor amounts of highly reactive brucite in tailings from Victor, as well as the likely presence of brucite at Venetia, Gahcho Ku{\'e}, and Snap Lake, is also important for the mineral carbonation potential of the mine sites.",
author = "Mervine, {Evelyn M.} and Wilson, {Siobhan A.} and Power, {Ian M.} and Dipple, {Gregory M.} and Turvey, {Connor C.} and Hamilton, {Jessica L.} and Sterling Vanderzee and Mati Raudsepp and Colette Southam and Matter, {Juerg M.} and Kelemen, {Peter B.} and Johann Stiefenhofer and Zandile Miya and Gordon Southam",
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Mervine, EM, Wilson, SA, Power, IM, Dipple, GM, Turvey, CC, Hamilton, JL, Vanderzee, S, Raudsepp, M, Southam, C, Matter, JM, Kelemen, PB, Stiefenhofer, J, Miya, Z & Southam, G 2018, 'Potential for offsetting diamond mine carbon emissions through mineral carbonation of processed kimberlite: An assessment of De Beers mine sites in South Africa and Canada' Mineralogy and Petrology, vol. 112, pp. 755-765. https://doi.org/10.1007/s00710-018-0589-4

Potential for offsetting diamond mine carbon emissions through mineral carbonation of processed kimberlite : An assessment of De Beers mine sites in South Africa and Canada. / Mervine, Evelyn M.; Wilson, Siobhan A.; Power, Ian M.; Dipple, Gregory M.; Turvey, Connor C.; Hamilton, Jessica L.; Vanderzee, Sterling; Raudsepp, Mati; Southam, Colette; Matter, Juerg M.; Kelemen, Peter B.; Stiefenhofer, Johann; Miya, Zandile; Southam, Gordon.

In: Mineralogy and Petrology, Vol. 112, 12.2018, p. 755-765.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Potential for offsetting diamond mine carbon emissions through mineral carbonation of processed kimberlite

T2 - An assessment of De Beers mine sites in South Africa and Canada

AU - Mervine, Evelyn M.

AU - Wilson, Siobhan A.

AU - Power, Ian M.

AU - Dipple, Gregory M.

AU - Turvey, Connor C.

AU - Hamilton, Jessica L.

AU - Vanderzee, Sterling

AU - Raudsepp, Mati

AU - Southam, Colette

AU - Matter, Juerg M.

AU - Kelemen, Peter B.

AU - Stiefenhofer, Johann

AU - Miya, Zandile

AU - Southam, Gordon

PY - 2018/12

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N2 - De Beers kimberlite mine operations in South Africa (Venetia and Voorspoed) and Canada (Gahcho Kué, Victor, and Snap Lake) have the potential to sequester carbon dioxide (CO2) through weathering of kimberlite mine tailings, which can store carbon in secondary carbonate minerals (mineral carbonation). Carbonation of ca. 4.7 to 24.0 wt% (average = 13.8 wt%) of annual processed kimberlite production could offset 100% of each mine site’s carbon dioxide equivalent (CO2e) emissions. Minerals of particular interest for reactivity with atmospheric or waste CO2 from energy production include serpentine minerals, olivine (forsterite), brucite, and smectite. The most abundant minerals, such as serpentine polymorphs, provide the bulk of the carbonation potential. However, the detection of minor amounts of highly reactive brucite in tailings from Victor, as well as the likely presence of brucite at Venetia, Gahcho Kué, and Snap Lake, is also important for the mineral carbonation potential of the mine sites.

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