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  • 1 Feb 2021 6:36 PM | Kanita Khaled (Administrator)

    KEGS February 2021 Talk

    Join us for our second webinar of 2021 next Tuesday!

    DateFebruary 9, 2021 at 4:00 PM EST
    TitleResource exploration for a net-zero emission future with electromagnetic methods in applied geophysics
    SpeakerAndrei Swidinsky, Ph.D. Associate Professor, Geophysics, Colorado School of Mines and new Teck Chair in Exploration Geophysics at the University of Toronto

    Location: Virtual registration link here.


    The World Health Organization has stated that “Climate change is the greatest threat to global health in the 21st century”. To address the climate crisis, every effort must be made to reduce the release of greenhouse gases into the atmosphere. Indeed, for Canada to achieve its 2050 goal of net-zero emissions, innovations in green energy and carbon dioxide (CO2) storage technology are essential. I believe that geophysics plays an important role in this goal through the strategic value of certain natural resources. This talk will describe my plans for a new research program as the Teck Chair in Exploration Geophysics at the University of Toronto.  As summarized in the figure below, I will outline four potential graduate student projects studying novel electromagnetic (EM) methods to explore for blind hydrothermal systems & critical mineral deposits, characterize enhanced geothermal systems (EGS) and monitor CO2 storage.  I will also describe ideas for an additional project related to the use of convolutional neural networks (CNNs) in mineral exploration, with the goal of developing university-industry partnerships focused on machine learning applications in geophysics.


    Andrei Swidinsky,  P.hD
    Andrei Swidinsky completed his undergraduate education in theoretical physics at the University of Guelph, and continued his graduate studies in geophysics at the University of Toronto under the supervision of Nigel Edwards.  Upon finishing his doctorate in 2011, he spent the following two years as a postdoctoral research fellow at the Helmholtz Centre for Ocean Research Kiel (Geomar) working on geophysical joint inversion.  He is currently an Associate Professor at the Colorado School of Mines (CSM) Department of Geophysics, where he has been a faculty member since 2013.  His research interests revolve around the development of novel electrical and electromagnetic methodology, including its integration with other types of exploration data.  He teaches a variety of courses on electrical and electromagnetic exploration techniques, ranging from introductory undergraduate classes to those at the advanced graduate level. He also directs the CSM Geophysics Field Camp, a four week comprehensive field course.   A former KEGS scholarship recipient, in July 2021 he will be joining the University of Toronto, Department of Earth Sciences as Teck Chair in Exploration Geophysics.      

    Mark your calendar for KEGS future talks!

    KEGS is pleased to announce a list of confirmed talks going forward:

    April 13 – Randy Enkin, GSC Paleomagnetism and Petrophysics Lab – Geophysical rock properties and the mineral mixing model based on principal component analysis as related to mineral properties and the implication on geophysical exploration
    May 11 – Thibaut Astic, UBC – 3D modelling of geophysical data to obtain relevant geophysical exploration models
    June 8 – Brian Bengert, BGS Exploration – Tamarack deposit geophysics
    July 12 – Bill Morris – either Sudbury breccia geophysical properties or Malartic Rock physical properties and the impact on geophysical exploration methodologies.

    KEGS 2021 Symposium updates - Fully virtual event - More updates coming soon!
    Dates: March 16 & 18, 2021 - March 23 & 25, 2021

    New this year will be an on-demand video component featuring presentations from students, as well as brief updates from industry, governments, and research centers. The KEGS 2021 symposium will be a virtual event held over 4 days. Each session will be 1.5 hours long and feature 4 live talks followed by Q&A after each talk with the speakers.

    The sessions will be held on Tuesdays and Thursdays on March 16th, 18th, 23rd & 25th, 2021. Times and prices to be announced soon.

    2021 KEGS Membership Renewal
    If you have not yet, we encourage you all to renew your membership in KEGS for 2021. The membership rate remains unchanged at CAD $50.00 + HST, and CAD $25.00 + HST for students. Membership registration is open as of January 1st, 2021

    Don't miss this TGDG webinar!
    Topic:  The PACIFIC Project: Developing passive seismic techniques for environmentally friendly and cost efficient mineral exploration.
    Date:   02 Feb 2021, 4:00 PM - 5:30 PM
    More info 

    WGC & PGO - Online Fireside Chat
    TopicMentoring, A Pathway to Bridge the Gender Gap
    Date: Tuesday, February 9, 2021 from 12 noon to 1:00 p.m. EST.

    About: An online fireside chat co-hosted by Professional Geoscientists Ontario and Women Geoscientists in Canada featuring professional geoscientists discussing the importance of mentoring to help sustain efforts to bridge the gender gap in geoscience industry. This is an opportunity for students, geoscientists-in-training and newly minted P.Geo.’s to engage with women leaders in the industry to gain insight from their lived experience, from their lessons learned and how to flourish as geoscience professionals and leaders in what is traditionally a male-dominated industry.

    • Imshun Je, P.Geo., Manager, Environmental Site Management & Compliance, City of Mississauga and member of PGO's Diversity and Inclusion Ad-hoc Committee
    • Jenna McKenzie, P.Geo., Co-founder and Principal Geophysicist, Ronacher McKenzie Geoscience Inc. and Founding Director of Women Geoscientists in Canada
    • Maureen Jensen, P.Geo., Past Chair of Ontario Securities Commission, Director of Franco-Nevada Corporation Copy and paste the link on your url window to know more about our panelists.

    1st CSEG Virtual Learning Series 2021: A Showcase of Canadian Innovation- February 2-4 & 8-11

    This 1ST CSEG Virtual Learning Series (DLS) features seven strategic noon hour talks spread over 2 weeks. The objective is to provide a learning series focused on applied geoscience and the innovation occurring in the geosciences in Canada.
    The oil and gas industry has once again found itself moving toward a low cost, efficient and sustainable future. As such, existing workflows have to be modernized by incorporating innovative ideas, new technologies have to show improved efficiency and every application has to resolve a particular social, environmental and economic problem. So, each speaker will address one particular major topic under development in Canada today.
    Data quality improvements through innovations in seismic acquisition and reinterpretation of legacy seismic data are a couple of examples that will be covered showing how costs can be optimized while enhancing data quality and value of the interpretation.

    Quantitative interpretation to provide deeper insight into subsurface reservoirs, machine learning application and adopting an integrated work flow for field development will show how new applications and repurposing old techniques with new perspective can solve modern petroleum exploration problems and impact business decisions.
    Game-changing technologies within the hydrocarbon energy sector, as well as various innovative ideas in development as part of Canada’s energy transition will be discussed.
    This virtual learning series invites anyone interested to learn about current innovative workflows, applications and technologies within the oil and gas industry. Participants will also gain insight into energy transition concepts.

    Program Detail and Registration Information

    PDAC Geophysics Session

    The Geophysics The Geophysics program will be launched as part of the PDAC technical program. The session will include four talks and is chaired by Robert Hearst, Southern Geoscience consultants and Brian, B-Field Geophysics, Toronto, Canada. More info here

    KEGS Foundation Update

    The full KEGS Foundation Update can be found here. Update includes:

    • Scholarship program to be renewed for 2021/22 academic year
    • Possible Quebec-focused scholarship under active consideration
    • Recent donations by supporters gratefully acknowledged
    • Additional donations encouraged to sustain the core scholarship program
    • Double impact program for individual donations generously funded by Phoenix
    • Presentation of record 27 scholarships for current year largely completed
    • Continuing outreach to current awardees to offset virtual instruction constraints
    • Augmented efforts to strengthen connections to 300+ ‘alumni’
    • Continued collaboration with KEGS, BCGS, TGDG and other allied geo-organizations
    • Financial statement and tax return for FY 2020 completed and filed
    • Continuing efforts to strengthen and broaden governance

  • 6 Jan 2021 6:31 PM | Kanita Khaled (Administrator)
    • KEGS January 2021 Talk

    Date: January 12, 2021 at 4:00 PM EST

    Title: Preliminary model studies comparing a variety of survey geometries for DCIP

    Speaker: Jeff Warne & Benoît Tournerie, Quantec Geoscience

    • Teck Chair: Andrei Swidinsky is the new Teck Chair of Exploration Geophysics at University of Toronto
    • KEGS 2021 Symposium - Fully virtual event
      • Dates: March 16 & 18, 2021 - March 23 & 25, 2021
    • 2021 KEGS Membership Renewal - we encourage you to renew your membership for 2021 on our website. The rate remains unchanged at CAD $50.00 HST, and CAD $25.00 HST for students.
    • WGC - January Webinar 
      • TopicDeveloping a successful career in geoscience
        Date: Wednesday January 13, 2021 at 4 pm ET/1 pm PT

        Speakers: Anna Shaughnessy- Currently Anna is President Elect of the Society of Exploration Geophysicists (SEG). Prior to that she was Vice-Chair of the SEG Foundation. She has also served on many SEG teams including the Women’s Network Committee.  
        More information available 

    • KEGS extends condolences on the passing of Jeff Rowe, Richard Lane and Dutch Van Blaricom

  • 17 Dec 2020 10:00 PM | Kanita Khaled (Administrator)

    December Reminder - Happy Holidays from KEGS!

    Bulletin Topics:

    • KEGS 2021 Symposium Deadline Extension Dec 30
    • KEGS Welcomes new executive member Farzaneh Farahani
    • KEGS-Quebec - Virtual Reunion on Dec 18

  • 1 Dec 2020 9:35 PM | Kanita Khaled (Administrator)

    December 2020 Bulletin

    Bulletin topics:

    • KEGS December 2020 Talk
    • KEGS 2021 Symposium Abstracts -  Submit Your Abstract Today!
    • SKGS - Technical Presentation and KEGS Scholarship Awards
    • BCGS - Technical Webinar
    • WGC - Technical Webinar
    • KEGS-Québec - Réunion Virtuelle et Visio-Conférence Géophysique avant-Noel
    • KEGS Foundation Update
  • 29 Oct 2020 10:00 PM | Kanita Khaled (Administrator)

    November 2020 - Bulletin

    Bulletin Topics:

    • KEGS November Talk - Airborne Induced Polarization (AIP) mapping of HTEM data and two cases from BC - Mt Milligan alkalic porphyry Au-Cu deposit and its AIP signatures and the past producer Au-Ag-Pb-Zn Dunwell mine in the Golden Triangle and its ground DCIP responses
    • Women Geoscientists in Canada Summit
    • CSEG Webinars
    • CSEG Distinguished Lecturer Presentation at UofT
    • KEGS Executive Nominations
    • Passing of Peter Hood
    • Mining Job Opportunities in Canada by Business Finland
    • KEGS Foundation Update

  • 5 Oct 2020 10:30 PM | Kanita Khaled (Administrator)

    October 2020 Bulletin

    Bulletin Topics:

    • KEGS October Toronto Talk - A Case Study on the Hat Project, British Columbia, with a Focus on Geophysics by Charlotte Thibaud
    • KEGS 2021 Symposium Announcements
    • Women Geoscientists in Canada Summit
    • APEGA Webinar
    • CSEG October Technical Webinar
    • Ore Deposit Talks
    • KEGS Executive 2021 - Welcoming Nominations
    • KEGS Foundation Update

  • 10 Sep 2020 11:00 PM | Kanita Khaled (Administrator)

    September 2020 Bulletin 

    Bulletin Topics:

    • KEGS Toronto Talk - Muon Tomography for Mineral Exploration, and other Applications in Underground Resources
    • SEG Annual Meeting
    • KEGS Foundation Update
    • CIM Webinar
    • KEGS Executive 2021 - Welcoming nominations now
  • 6 Jul 2020 6:51 PM | Kanita Khaled (Administrator)

    KEGS SUMMER 2020

    These past few weeks have been truly unlike anything we've experienced before. In light of our current circumstances, we are sad to announce that KEGS Toronto summer social events are postponed for the time being. We will be sure to keep you updated should things change. Please note that KEGS Ottawa webinars are also on pause for the summer.


    The upcoming June talk will be our final one before we break for the summer. We want to hear how everyone is doing during these challenging times so please join us online! We would also like to encourage submission for fall talks.

    Date:   2020-06-09 @ 4:30pm


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    Virtual Webinar. Register using the link below.

    Speaker Xiong Li, CGG

    Bio: Xiong Li received his BEng and MEng degrees from Chengdu Institute of Geology, and a PhD degree in 1991 from the Chinese Academy of Sciences. He worked at Freie Universität Berlin in Germany, École Polytechnique de Montréal in Canada, and BHP in Melbourne of Australia before joining Fugro in Houston of Texas, USA in 2001. He has been working for CGG since 2013 with an acquisition of part of Fugro. He has been Chief Geophysicist of CGG Multi-Physics (and its predecessors in Houston) since 2005. He was a member of the team that developed the FALCON airborne gravity gradiometer technology. He and Yaoguo Li helped SEG and the Chinese Geophysical Society organize three GEM Workshops: in Beijing in 2011, in Chengdu in 2015, and in Xi’an in 2019. He has been an associate editor, for gravity and magnetic exploration methods, of GEOPHYSICS since 2005.

    TitleHigh-Resolution Magnetic Data for an Improved Accuracy of Wellbore Positioning

    Directional drilling maximizes the extraction of oil and gas while minimizing the cost. The Measurement While Drilling describes directional surveying and drilling-related measurements. A cost-effective MWD is to measure the distance and two angles: the dip measured by a triaxial accelerometer and the azimuth by a triaxial magnetometer. Magnetic survey relies on the principle of measuring the direction of the wellbore relative to the direction of the local geomagnetic field. Its accuracy is thus limited by the accuracy with which the Earth’s local magnetic field is known at the drilling site and time.

    The MWD engineer uses the local gravity and magnetic fields to correct the measurements received from the downhole sensor for certain errors, including magnetic interference due to the drill string and local geology; then calculates the tool orientation from the corrected measurement; and finally advises the drilling engineer to adjust the drilling towards the desired direction. The local fields may be also used to perform a set of quality checks on the measured data.

    We have developed a technique named MagCUBETM that converts surface-observed scalar total magnetic intensity anomalies into a subsurface vector crustal magnetic field distribution. We also estimate the uncertainties in the main magnetic field model, the disturbance field, and the local crustal field model. In particular, we build the crustal field model by using high-resolution magnetic data. A combination of these efforts results in an improved accuracy of wellbore positioning.


    Ore Deposit Hub started in March 2020 to fill the void left by conferences and meetings cancelled due to COVID-19. A schedule of Ore Deposits Hubs hosted talks can be found here .

  • 22 Jun 2020 6:53 PM | Kanita Khaled (Administrator)

    June 2020 Bulletin


    The PGO Symposium will take place virtually over June 30, July 7, July 14 and July 21, 2020.

    This online learning event has been designed by professional geoscientists for professional geoscientists. It will present must-have emerging information and highlight key tools relevant across all geoscience subdisciplines and specializations. This symposium covers a broad array of themes that will also be of interest to the broader professional and geotechnical community including regulators, government staff, professional and technical societies, insurers, legal practitioners, proponents of geoscience-related projects and the general public.

    For professional geoscientists in Ontario and across Canada, this is an excellent and cost-effective way of accumulating continuing professional development (CPD) hours for 2020.

    To register or read more about the symposium, visit


    TGDG and Ore Deposits Hub are continuing to host interesting and informative virtual talks through the summer.

    Stay up to date by visiting their websites to check for upcoming events and talks.

    TGDG -

    Ore Deposits Hub –


    We regret to inform you that Dr. Tony Naldrett has passed away on June 21, 2020.

    If you wish to read about Tony's life in his own words, please see attached document.

    Ed Spooner has also written about Tony here.

    Download: Tony Naldrett in his own words 2020

  • 11 May 2020 6:55 PM | Kanita Khaled (Administrator)

    May 2020 Bulletin


    Register online to join the KEGS Toronto May talk!

    Date:   2020-05-12 @ 4:30pm


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    Password: 621480
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    +14388097799,,95149535406# Canada
    +1 778 907 2071 Canada
    +1 438 809 7799 Canada
    +1 587 328 1099 Canada
    +1 647 374 4685 Canada
    +1 647 558 0588 Canada
    855 703 8985 CanadaToll-free
    Find your local number:

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    Register here to join the webinar presentation:

    Speaker David Schieck, MSc., P.Geoph (AB) P.Geo(ON)

    Bio: David started his career in high school with a summer job as a “jug-hound” in S. Alberta. He continued his interests in seismology obtaining a BSc. at the University of Western Ontario then worked as a 3D seismic processor/programmer for several years. Early 90’s he obtained an MSc with the newly established CREWES project at University of Calgary. He worked on analyzing Ground roll dispersion and some of the early ideas of ground roll removal from P-Sv processing. After working for a mining engineering firm acquiring high resolution seismic in the jungles of Suriname to identify high liquefaction clays, he started his own engineering seismic firm Geophysical Applications (GAPS) in Guelph, Ontario. GAPS acquired high resolution seismic for landfills, exploration for groundwater wells in the SW Ontario, underground storage facilities in Sarnia and Cape Breton, and Kaolin clay delineation in Nova Scotia as well as acquiring large scale O&G exploration projects in NE USA. GAPS was absorbed by a seismic exploration company in western Canada and, for a brief stint, David was hired as the operations geophysicist at Husky Energy where he championed slip-sweep acquisition and began to move groups there into shear wave processing. Recently David took advantage of the downturn in Oil exploration purchased two Envirovibes, built a 3C landstreamer from unused ARAM MkII equipment, then partnered up with Echo Seismic to start a new environmental and engineering division that is promoting shear-shear high resolution seismic. David has a unique combination of data processing, shallow seismic and shear wave seismic knowledge.

    TitleShear landstreamer profiling for dam and levee investigation: Single pass MASW, P- & SH-wave reflection technology

    Recent near surface seismic reflection developments using land-streamer have been commercialized in the Western Canadian by re-purposing former exploration seismic equipment. A 16,000 lb IVI Envirovibe is retrofitted with a 6,000 lb shear vibrator pack that can be rotated to transverse or inline orientation. An exploration ‘ARAM lite’ recording system has been mounted in the cab, 72X10Hz 3 component geophones are mounted on metal sleds spaced 1.5 m apart towed along by a kevlar belt along with vibe electronics and real-time GPS positioning. The high multiplicity and relatively large energy source enable non-intrusive high resolution, quantitative investigations in the range of 3 – 200m depths, not possible with any other geophysical methods.

    Shear wave velocities (Vs), within consolidated rocks, are typically ½ the corresponding compressional or P-wave velocities (Vp) means the Vp/Vs ratios~2). However, within unconsolidated soil materials the ratio of Vp/Vs is often within the range of 6-12. This means vertical resolution of shear wave data within the near surface material, even if recovered frequencies are ½ that of P-wave, are 3 to 5 times higher when time sections are converted to depth. Vp is affected by fluids whereas Vs is not, refraction is dependent on increasing velocities whereas reflection is not. The towed SH landstreamer is ideally suited to earth dam applications and other near surface problems. A combination of seismic methodologies including refraction, P-wave and SH-wave reflection and MASW can be achieved in a single pass. A quick discussion of the theory of these methods, examples of real data and case studies will be presented.


    Date:   2020-04-28 @ 4:30pm

    Venuesee below for link

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    Richard Smith gave me a kick in the behind this week to facilitate our April meeting with Tom's presentation. Richard will use his Laurentian account to host a Zoom based presentation. We will meet virtually Tuesday April 28 at our usual time, 4:30, using Richard's Zoom account.

    Meeting ID: 951 4953 5406

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    Dial by your location

    Please be sure to mute your microphone when you sign in. We will be accepting written questions throughout the presentation using the chat window.

    I hope to "see" a good turn-out on Tuesday!

    Speaker Tomas Naprstek, National Research Council Canada and Laurentian University (Ph.D. Candidate)

    Bio: Tomas Naprstek completed his B.Sc. in Physics at the University of Waterloo in 2012 and his Geophysics M.Sc. at Laurentian University in 2014. He is in the process of finalizing his Geophysics Ph.D. at Laurentian University which focuses on the interpolation and interpretation of lineaments in aeromagnetic data. Since 2016, he has worked at the National Research Council of Canada. His research there primarily focuses on developing new processing and analysis techniques for remote sensing applications, such as the geolocation of wildfire data and aeromagnetic compensation for unmanned platforms.

    TitleMachine Learning for the Interpolation and Interpretation of Aeromagnetic Data

    Due to the continually lowering barrier for entry of usage, machine learning methods are being applied increasingly in a wide array of fields, and offer a new approach to solving established problems. In this presentation, the potential use of machine learning for aeromagnetic interpolation and interpretation is explored. We investigate interpolation using support vector machines and random forests, and show how their user-driven approach to machine learning enables a small improvement over standard interpolation methods for aeromagnetic data. Following this, convolution neural networks are applied to the interpretation of lineaments in an effort to estimate their strike and depth from aeromagnetic grids. This deep-learning approach requires extensive synthetic data for training; however we show that the method is a powerful tool, and has the potential to quickly and effectively estimate multiple source parameters in entire aeromagnetic grids.

    Upcoming KEGS Ottawa Presentations

    That's it, that's all for now! I hope we will be meeting in person in September - or maybe even for a KEGS Ottawa BBQ later this summer!


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