Due to the effects of the Covid-19 virus on the mining industry and the world, our meetings currently, are all virtual, Google Meetings or
Below is a list of past virtual Meetings and a brief description, preceeded by some planned future meetings, and a brief description.
If you would like to give a presentation in one of upcoming future Virtual Meetings, please contact us with a brief description
of the subject matter, and the presenter. Send inquiries about a proposed Virtual Presentation to the SoCal Mining members
to Alan Levy (Program Chairman) email@example.com and/or Dan Palo DPalo@barr.com and you will be contacted regarding the proposal. and you will be contacted by the appropriate person handling the presentations.
|Notice: Our Upcoming Virtual Meetings:
March, 11,2021 Meeting: "Selective Heat Treatment of Ores: Shaking up Economics of Mineral Recovery"
PRESENTED BY: Tracy M. Holmes, P.Eng, President of Jenike & Johanson Ltd
TIME: 5:45 - 7:00 pm Pacific Time
RSVP: By accepting invite to the meeting and placing on your calendar
Crushing and grinding rocks uses significant energy. Up to 50% of the total energy used in mineral processing
can be just for particle size reduction. As ore bodies age and grades decline, increasingly higher energy input is
required for comminution, which increases costs and the carbon footprint of these operations. A step change in
energy reduction is required to meet the future demand of these processes. A promising technology, selective
heat ore treatment, utilizes microwave energy to create microcracks, to significantly improve the comminution
efficiency. In addition, microcracks result in fracture along the boundaries between the valuable mineral and
host rock, allowing mineral recovery at a larger particle size, thereby reducing the energy input further and
decreasing challenges around tailings management. A significant reduction in energy consumption and often
an associated increase in throughput for existing equipment can extend the lives of mines with degrading ore
grades. This technology not only will improve margins in operating plants, but also extend return on invested
capital in plants that would otherwise be uneconomical to operate. The current state of the technology as it is
applied to Canadian ores, specific ore characteristics found through testing to be candidates for this technology,
and the anticipated benefit over existing processes will be presented.
Download the PDF program below, with link and instructions to Join Meeting with Google Meet
Download PDF file with Log In Info: 2021 March 11 Meeting, PDF File
Or Join by phone (US) +1 443-606-2467 (PIN: 291047255)
Notice: Below is a listing of some of our Previous Virtual Meetings,
Hosted by Southern California Mining Section, for your informtion:
January, 14,2021 Meeting: "Structural Controls and Timing of Gold Mineralization in SE CA: Identifying
PRESENTED BY:Tarryn Cawood, PhD candidate, University of Southern California
MEETINGS ARE HOSTED BY: SoCal Section of SME
COST: No Charge
Gold mineralization in SE California is hosted by a variety of geological structures, from steep brittle faults
related to the young San Andreas system, to low-angle ductile shear zones adjacent to ~170 Ma granitic
plutons. As a result, a wide range of ore deposit models have been proposed, each of which calls for a different
Tarryn Cawood is geologist specializing in hydrothermal ore deposits and structural deformation. She is
currently a Ph.D. candidate at the University of Southern California.
November 2020 Meeting: "Mining, Climate Change, and Conflict: Lessons from Nigeria and Kyrgyzstan"
PRESENTED BY: Casey Bartrem, PhD, Executive Director, TerraGraphics International Foundation, Moscow, Idaho
October 2020 Meeting: "Development Plan for the Imperial Gold Project, Imperial County, CA"
PRESENTED BY: Marc Leduc: Chief Operating Officer, Kore Mining Ltd., Denver, CO.
September 2020 Meeting: "Rise to the Occasion - Lessons from the Bingham Canyon Manefay Slide"
PRESENTED BY: Brad Ross, PhD, PE, Professor of Practice Director, Geotechnical Center of Excellence, Lowell Institute for Mineral Resources,
University of Arizona
May, 2020 Meeting: "Lithium: Resources, Recovery, and Recycling"
PRESENTED BY: York Smith, Assistant Professor in the Materials Science and Engineering Department at the University of Utah
February 2020 Meeting: "Exploration Techniques in Scandinavia"
PRESENTED BY: Anders Hogrelius, M.S, PG, RPGeo; Earth Consultants International, Inc.