Edmonton

Geological

Society


EGS Annual General Meeting 2019

  • 27 Apr 2019
  • 6:00 PM - 11:30 PM
  • Kelly's Saloon, Fort Edmonton Park

Registration


Registration is closed

The Edmonton Geological Society is hosting its Annual General Meeting (AGM) and Pub Night Talk at Kelly’s Saloon on Saturday, April 27th, 2019.

This year's pub night talk will feature a presentation by Sasha Wilson from the University:
Waste not, want not: rethinking the mineral wastes from mines as a resource for metal recovery and carbon sequestration

Full abstract below

The event will begin at 6 pm with beer, cocktails and a chance to mingle. Dinner will be served at 7 pm. The AGM will take place during dinner and will include summary of the Society’s activities, finances and the election of a new executive. The AGM will be followed by the feature presentation.

Please register (online only) by April 22, 2019-- EGS Annual General Meeting 2019

Cost (includes two free drinks):

Members/Associates: $25

Non-members: $40

Student members: $15

Student non-members: $20

To check your membership standing or to update your membership information, please log into the EGS website (http://www.egs.ab.ca/). If you wish to become a member please create an account on the EGS website.

EGS strongly encourages you to make payments on-line to reduce the need to pay at the door. Only cash or cheques payable to the Edmonton Geological Society will be accepted at the door.

Guests must be registered to attend this event.

Waste not, want not: rethinking the mineral wastes from mines as a resource for metal recovery and carbon sequestration

Mineral wastes from mines are increasingly being viewed as the ores of the future. Reprocessing of mine tailings (finely pulverized mineral waste) offers economic and environmental advantages given the expense of exploration for new ore bodies, declining ore grades, and increased global demand for resources. Mineral recovery during ore processing is not 100% efficient and ore processing circuits are typically designed to only concentrate one or two key elements or minerals. For instance, it is not uncommon for 30–40% of the nickel at a nickel mine to go unrecovered and to be disposed of in tailings.

The tailings from magnesium-rich mafic and ultramafic ore bodies, which house much of Canada’s mineral wealth, may also be used as a feedstock for mineral carbonation via enhanced weathering. This is a Carbon Capture Utilization and Storage (CCUS) technique that accelerates the natural process of chemical weathering of magnesium silicate and hydroxide minerals to trap carbon dioxide within artificial magnesium carbonate rock (the same minerals used as rock climbers’ chalk).

Laboratory, synchrotron and field experiments from my group demonstrate that enhanced weathering can be adapted to simultaneously dispose of carbon dioxide in carbonate minerals while generating a magnesium-depleted residue that concentrates valuable base metals such as nickel, chromium and cobalt. As such, enhanced weathering could be used more broadly for mineral processing and metal recovery, as well as to kickstart soil formation from tailings, in addition to its first conception as a CCUS technique.

Biography

Sasha Wilson is an Associate Professor at the University of Alberta and the Canada Research Chair in Biogeochemistry of Sustainable Mineral Resources. She obtained her Ph.D. from the University of British Columbia in 2010 and was a NASA Astrobiology Institute Postdoctoral Fellow at Indiana University from 2010–2011. She was on faculty at Monash University in Melbourne, Australia from 2011–2017. Sasha is a biogeochemist who works on environmental aspects of economic geology. She and her research group use mineral behavior, with a focus on crystal chemistry, isotope geochemistry and mineral–microbe interactions, to understand and manage environmental change in engineered and natural settings.


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