Find the Trend and Plunge of a Line Plotted on a Stereonet

Steven Dutch, Natural and Applied Sciences, University of Wisconsin - Green Bay
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Example

1. Find the trend and plunge of the plotted line.

2. Rotate the plotted point to one of the vertical great circles (it does not matter which one). Draw a tick mark to indicate the trend.

3. Count in along the great circle to find the plunge.

4. Return the overlay to its original orientation and count off the trend.