A geologist measures eight conjugate faults in a region (the strikes and dips listed below). All have normal displacement.

090 68 S

083 66 S

088 52 S

097 64 S

304 68 N

311 58 N

298 57 N

296 69 N

Determine the orientation of sigma one, two, and three from this data (they do not need to be vertical and horizontal). To do so, plot the data on a stereonet and determine the bisector of the conjugate faults maxima and the two axes perpendicular to that bisector (please show work). What are the angle and coefficient of friction for this data set? Determine using a mohr circle.