The three point problem

Interpreting subsurface geology and forecasting location of planar geological boundaries on maps using the "three point problem" - a construction technique illustrated here using bore hole information. Part of "The Shear Zone" video channel. A copy of the map is available on the Shear Zone website (see link from Channel home page). There are other examples that illustrate the application of these techniques on the channel... why not take a look through the playlist! These include another 3 point problem: • A three point problem ...

[@nathannicolodemos1478]

This was the only video I was able to find that had a clear explanation. Thank you!

[@robbutler2095]

Thanks - glad it did the trick...

[@urazefx8797]

I love the explanation! they're easy to catch and learn, tysm so grateful for you ❤❤

[@hassanaleem2871]

Really enjoyed this work, an excellent explanation... perfect, simple, and clear

[@robbutler2095]

Thanks - why not check out some of the other structure contour/three point videos to take the ideas further.

[@hassanaleem2871]

@@robbutler2095 thanks for suggestion. I am watching all of them and subscribed to your website and scholar site, watching and enjoying them ☺️☺️Hats off to your dedication and efforts for we learners ☺️

[@boristumao3679]

Great video!

[@robbutler2095]

Glad you found it useful. There'll be more map and section videos going up in the coming weeks.

[@cxsmic0s]

When you started to find the dip, why did you subtract the elevation between the 300m line and 100m line rather than subtracting the elevations between the B (the lowest point) and C (the highest point)?

[@robbutler2095]

Simply to make the calculation easier to visualise .... it depends on what precision you desire ....

[@robbutler2095]

And of course, to calculate the TRUE dip, you need to measure perpendicular to the structure contours.....

[@cotamanic]

thank you

[@robbutler2095]

Glad you found it useful.