Registration Information

Abstract Information & Guidelines

Submit your Abstract

List of Symposia, Special Sessions and General Sessions

For changes to your registration please email:  directly so that we can efficiently make those changes on your behalf.

Registration information

GAC-MAC 2021 hybrid meeting Registration rates are given below.

In person registration types (except Guest) include participation in all meeting activities on campus at Western University, as well as virtual meeting access. 

Virtual registration types include participation in all online meeting features, including the virtual-only and hybrid scientific program.  

Field trips, short courses and workshops have additional registration fees and can be purchased separately or in the same transaction as the main meeting registration.

*Member refers to host society (GAC, MAC) 2021 membership. Note that the renewing or joining membership in GAC or MAC reduces the meeting fee by typically more than the membership rate. It’s a good deal!

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Registration typeFee (in-person)Fee (virtual)
Full member*, early$590$100
Full member*, after Oct. 1st, 2021$690$165
Non-member, early$690$200
Non-member, after Oct. 1st, 2021$790$265
Student, member*$100$50
Retired, member*$100$50
(Non-member) Student, K-12 Educator, Community & Retiree $150$75
Day pass – member*$250—N/A—
Day pass – non-member$300—N/A—
Guest pass$20—N/A—

Join/renew your GAC or MAC membership for a registration discount!



For changes to your registration please email:  directly so that we can efficiently make those changes on your behalf.

Abstract information

GAC-MAC London 2021 welcomes the submission of research and discussive contributions for the Joint Meeting program!

Submission of an abstract representing your proposed meeting contribution is required. The deadline for abstract submission is **July 22, 2021,** and must be done through the online abstract submission portal. Abstracts cannot be submitted by e-mail or in hard copy.

Meeting contributions can be in oral or poster format, and can be presented in-person or virtually. Please consult the list of Symposia, Special Sessions and General Sessions across all meeting themes before submitting your abstract.

Click here for a downloadable summary of the session descriptions.

Abstract Guidelines

  • Abstracts typically summarize new research results and conclusions, or offer synthesis and discussion that represent the meeting contribution.
  • Abstracts should not introduce new formal rock or meteorite names, new stratigraphic or time units, nor new fossil names. New mineral names will be introduced only with prior approval by the International Mineralogical Association.
  • Abstract text must not exceed 3000 characters (spaces included), excluding title, authors, and addresses.
  • New this year, a single graphical abstract file (JPG, PNG, PDF) can also be uploaded to accompany your abstract submission. The graphical abstract can take the form of a key summary figure or a photograph with a caption, and will be included in the abstract volume with your abstract.
  • The deadline for abstract submission through the submission portal is July 22, 2021. Late submissions will not be accepted.
  • You can make changes to your abstract by re-entering the submission site at any time up to the submission deadline.

A non-refundable $50 (CAN) abstract submission fee is payable to submit each abstract. More than one abstract fee ticket can be purchased in the same transaction, if desired.

Review and acceptance of abstracts will be assessed primarily by session conveners and by the GAC-MAC 2021 Scientific Program Committee, based upon scientific merit of the contribution and compliance with required format. Presenting authors will receive a confirmation of receipt following abstract submission and will be informed as to whether it has been accepted in August, 2021.

Symposia, Special Sessions and General Sessions

SS-09 Withdrawn
SS-24 Withdrawn

COVID-19 Statement

Due to the COVID-19 pandemic, the London 2021 Local Organizing Committee is closely following updates from regional and national authorities, and planning accordingly for this fast-evolving situation. The health, safety, and well-being of all participants is our priority consideration in our decisions, and we will provide updates on this site as needed.

Click here to read more

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