MT3DINV4 - all data now available, register now

[Alan G Jones (Geophysics)]

Dear colleagues,

Planning for the MT3DINV4 workshop has progressed significantly over the last weeks: https://mt3dinv4.mtnet.info/Home.html


Please read some details below:


Theme:
The central theme for this fourth workshop in the MT3DINV series is natural-source EM methods for mineral exploration. The forward model, Secret Model and Real data are all focussed on that theme.



Datasets:
Both the Secret Model data and the Real data are now available for download in both EDI-format and J-format. In addition to the MT and Tipper data for the Secret Model, there are also airborne natural-source data, named Airborne System 1 (AS1) and Airborne System 2 (AS2), that mimic the physical principles of two commercial systems, Geotech's ZTEM and Expert Geophysics' MobileMT.

Also provided for the Secret Model are MT and Tipper data without and with noise added. I am planning to add noise to the AS1 (ZTEM-like) and AS2 (MobileMT-like) data. I might add distortion to the MT data, 

Think about undertaking single-domain inversions and also joint inversions of different data types. Examine resolution with perfect data, and with noisy data, and with distorted noisy data.

The Real data are provided as original data, acquired by Quantec, in EDI SPECTRA format, and data "corrected" by MTGS in both EDI IMPEDANCE format and J-format. A note on the correction approach will be available shortly.


Timing and Location:
The workshop will commence on the morning of Friday 31st July and run for 2 1/2 days until midday on Sunday 2nd August. During that time we will examine the responses from the Forward Model (a sphere in a half-space, for which analytical results are available), the models generated from the forward responses of the Secret Model, and the models generated from the Real data.

Nominally we will run from 9am to 6pm, with mid-morning and mid-afternoon tea breaks and a midday lunch.

The location of the workshop is still to be confirmed by Colin Farquharson, but it will be in a lecture hall on the MUN campus.


Accommodation:
I suggest for convenience you stay in student accommodation for this workshop. You can book it through the EMIW site: https://www.emiw.org/emiw2026/venue

There are many other options around St. John's if you prefer. Some of them are also listed on the EMIW site.


Registration:
There are currently 36 people registered, of which 30 are planning to attend in person. We are hoping to keep the workshop numbers small, to have a true interactive workshop where discussion is as important as presentation.

To facilitate this, we will be closing registration at around 50 people attending in person. Anyone registering after that will go on a waiting list.

If you wish to register, please do so here: https://mt3dinv4.mtnet.info/Registration.html

There is no registration fee, but there are only two ways you are allowed to attend. Either you undertake at least one and preferably two or three of the tasks, or you become a Workshop sponsor. There's no free ride! 🙂


Abstracts:
The abstract hard deadline is 1st July, 2026! No exceptions. No extension. If you do not submit an abstract by that date you cannot attend, and your spot will be given to the next on the waiting list.

There is no abstract format, you are completely free to design your abstract how you wish. Except that your abstract, for each task you perform, MUST fit on one letter sized page (8.5 × 11 in) with a 1 in margin around it (I apologise for the medieval units). Any run-on will not be printed, even if caused by an A4 to Letter reformatting issue for printing. Please use legible text and figures - don't try to game the system!

We will be old school and will be printing the abstracts and ring-binding them, as well as making them available online, so if your abstract doesn't have a left or right sided margins, some text might be lost to the ring binding.

Submission is by PDF. More details to be announced on the web site and through the workshop email channel (https://mtnet.info/mailman/listinfo/mt3dinv4_mtnet.info).


Posters:
We will arrange the programme in early-July right after abstract deadline, and inform those of you who are registered whether your work will be presented as an oral or as a poster.

If you wish to undertake one or more of the tasks, but cannot attend the workshop in person, please register and make a poster of your work. 

We are making arrangements to have posters printed locally.


Sponsorship:
We have been very fortunate to attract a decent amount of funding from workshop sponsors. This will firstly pay the costs of the workshop (which we are endeavouring to keep to a minimum), then local costs of any students who are coming to the EMIW and wish to extend their time to attend this MT3DINV4 (accommodation, lunches, Saturday evening dinner), then poster printing.

If you are interested to become a sponsor, please contact me. 


Further updates:
If you are not sure about registering, but want to be kept up-to-date with information, please register on the workshop email list server: https://mtnet.info/mailman/listinfo/mt3dinv4_mtnet.info

Note that this is NOT the same as registering for the workshop!



With very best wishes,

Alan

For the MT3DINV4 organising committee


CURRENT SPONSORS:

GOLD: Raglan Mine (Glencore Canada), Viridien

SILVER: Barrick, Enthalpion/IoMT, Fleet, MTGS, Moombarriga, Zonge

BRONZE: KEGS Foundation

-- 
Alan G. Jones, P.Geo., MRIA, Fellow AGU
Ottawa, Canada

Senior Professor Emeritus
Dublin Institute for Advanced Studies, Ireland

Specially-Appointed Professor
China University of Geosciences Beijing, China

President, ManoTick GeoSolutions Ltd.
https://www.manotick-geosolutions.com
tel: +1-613-692-2854
cell: +1-819-743-5745

Google scholar: https://scholar.google.ca/citations?user=fbT-K4MAAAAJ
Publons: https://publons.com/researcher/2876587/alan-g-jones/
ORCID ID: 0000-0002-3482-2518
SCOPUS ID: 7407105442
Web of Science ResearcherID: A-3241-2009
Research.com: https://research.com/u/alan-g-jones