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Fault from plane and rake

Source: R/faults.R
fault_from_rake.Rd

Fault from plane and rake

Usage

Fault_from_rake(p, rake, sense = NULL, ...)

Arguments

p

object of class "Plane"

rake

Angle (in degrees) between fault strike and lineation. Measured clockwise from the strike, i.e. down is positive; values between 0 and 360° (or −180° and 180°)

sense

Either 1 (for normal fault movement) or -1 (reverse fault movement). Use this only if rake values are in range of 0 and 180°.

...

optional arguments passed to Fault()

Value

"Fault" object

Details

Rake is used to describe the direction of fault motion with respect to the strike.

Measured clockwise from the strike, down is positive; values between 0 and 360° (or −180° and 180°):

  • left-lateral strike slip: rake near 0°

  • right-lateral strike slip: rake near 180°

  • normal: rake near 90°

  • reverse/thrust: rake near -90° (270°)

Examples

fr <- Fault_from_rake(Plane(c(120, 120, 100, 0), c(60, 60, 50, 40)),
  rake = c(84.7202, -10, 30, 180)
)
plot(fr, col = 1:4)
legend("topleft", legend = Fault_sense(fr, 8), col = 1:4, pch = 16)


fr2 <- Fault_from_rake(Plane(c(90, 90, 90), c(80, 40, 10)),
  rake = c(10, 20, 90), sense = c(1, 1, -1)
)
plot(fr2, col = 1:3)
legend("topleft", legend = Fault_sense(fr2, 8), col = 1:3, pch = 16)