3 Point Problems, Strike Lines, and Apparent Dip

This video will show you how to get from a 3 point problem, to strike lines, an outcrop pattern, and apparent dip of the unit as viewed along a line.

[@samuelasare2190]

Thank you very much

[@normangrimes4869]

Can you calculate the thickness of unit B and D for this map? please

[@rajkumarsiringi6777]

Thank you so much

[@kristeldejan8474]

Up

[@rubenaguilar1360]

What dictates moving from point A to B as opposed to going from B to A when placing strike contact?

[@zeags]

i am also confused by this

[@nwankpaprecious82]

Sorry but i'm confused, how did you get the units for A,B and C to be 100, 20 and 200m respectively?

[@viktorbarruel5968]

it is given in the problem sir

[@sixtusbambol9207]

Thank you for the Video Mme. Please your Volume is very low

[@everettleslie693]

What we’re the units before that made her multiply 30 by 38.5

[@accaribo2022]

Honestly? Metric field data and then working in feet and inches? Only in the US......

[@Yulanli-ne2wh]

I am not sure how you draw the 1000m strike line.how do you find that point on the left. Why It is 1155m from the 800 strike line ( also point A) and horizontally and vertically? I understand it should be perpendicular to the dip

[@sjgeo691]

was the last equation supposed to be 9.6 instead of 9.8 for apparent dip? thanks for the video

[@kc_structuralgeology6992]

No, you want to make sure you are using your true dip value in that equation, which is what I get in the work for the bottom triangle on the right hand side of the page. Good question.

[@sjgeo691]

@@kc_structuralgeology6992 ok thank you that makes sense, in the video you say apparent dip but use the Tru dip value, thanks for the clarification

[@ghidimark8671]

Nice but get a normal ruler 📐

[@ryanc.6723]

It is a protractor and the right tool for many mapping calculations.