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John et al-

This is brilliant. Thanks so much.
I used it yesterday during my first remote lab. It was a moment tensor (beach ball) lab for a for a Plate Tectonics class. All of the students had seen stereonets before, but none had used them outside of a Structure lab (4 months to > 2 years ago).
The students had to plot lines, orthogonal nodal planes and the orthogonal tensor axes, and determine the orientations of the nodal planes and axes. It went extremely well -so well that I may never again use paper stereonets in a teaching lab. I was not sure of the class's PowerPoint skills, but they were all good enough that each student added something (e.g. an extra symbol or annotation) that I had not asked for.
The lab was conducted as a Zoom session- I could answer questions by sharing my screen, but it  seemed to be more  effective for the student to share her screen and for me to give instruction (e.g. grab the rotation tool and rotate clockwise).

Thanks,
Peter Crowley

On Fri, Mar 20, 2020 at 5:41 PM jwaldron <[log in to unmask]> wrote:
Hello Tom and all…

Following this response I’m working on putting up tutorials on other techniques.  So far I have done plotting and calculations with lines.  Planes are coming up.  I think I have figured out how to do small circles.

I’ve linked them to our online Open Educational Resource textbook, which everyone is more than welcome to use, here:
https://pressbooks.library.ualberta.ca/introductorystructuralgeology/

You can access the movie page directly here:
https://sites.ualberta.ca/~jwaldron/public_html/resources.html

The movies are rather large: let me know (off-list) if you have trouble playing them.  I can try to compress them.  ...Or move them to Youtube.

John


On 2020/Mar/19, at 1:40 AM, Thomas Blenkinsop <[log in to unmask]> wrote:

Hello John
This is great. As you say, more intuitive than rotating the tracing paper. Some more movies showing how to do other stereonet techniques would be very welcome.
However, before cancelling all future orders for hard copy stereonets and tracing paper, I need to work out what to do about stereonets in the field.
Regards,
Tom
 
 
Tom Blenkinsop
School of Earth and Ocean Science
Cardiff University
Main Building, Park Place
Cardiff CF10 3AT
United Kingdom 
Phone 44 (0)29 208 70232
http://tomblenkinsop.wordpress.com/
 
 

From: Tectonics & structural geology discussion list <[log in to unmask]> on behalf of jwaldron <[log in to unmask]>
Reply to: Tectonics & structural geology discussion list <[log in to unmask]>
Date: Wednesday, 18 March 2020 at 23:16
To: "[log in to unmask]" <[log in to unmask]>
Subject: Tools for solving simple structural problems on-screen

 

Hello everyone,

 

In this time when everyone is having to deliver content to our students remotely, we have faced the challenge of sending and receiving map and stereographic projection exercises, usually done on paper, when many of our students don’t have a scanner at home, and some don’t have a printer.

 

I devised a way of doing some of these constructions within Powerpoint (which all our students have access to).

 

I have shared links here, to a powerpoint file with basic tools (on-screen ruler, protractor, Schmidt and Wulff nets), and a movie showing how they can be used.

 

https://www.dropbox.com/s/zsd8gjasbmlqgem/GeologyTools04.pptx?dl=0

 

We haven’t actually tested these yet with the students, but I’m sending them here in case they prove useful.  Suggestions for improvement are most welcome!

 

I’d also be interested to know if they work in Google Sheets, Open Office, and other free alternatives.

 

Stay well, everyone

 

John

 

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John Waldron, Department of Earth & Atmospheric Sciences, 

Mail: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB Canada T6G 2E3. 

T:780-492-3892. F:780-492-2030. Office: CCIS 3-022. email: [log in to unmask] 

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John Waldron, Department of Earth & Atmospheric Sciences, 
Mail: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB Canada T6G 2E3. 
T:780-492-3892. F:780-492-2030. Office: CCIS 3-022. email: [log in to unmask] 
(Spam filters provided by Google to the university may 
reject some sources of email.  If this happens, try [log in to unmask])
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