distance_from_pb | R Documentation |
Absolute distance of data points from the nearest plate boundary
distance_from_pb(x, PoR, pb, tangential = FALSE, km = FALSE, ...)
x |
|
PoR |
Pole of Rotation. |
pb |
|
tangential |
Logical. Whether the plate boundary is a tangential
boundary ( |
km |
Logical. Whether the distance is expressed in kilometers
( |
... |
optional arguments passed to |
The distance to the plate boundary is the longitudinal or latitudinal difference between the data point and the plate boundary (along the closest latitude or longitude) for inward/outward or tangential plate boundaries, respectively.
Numeric vector of the great circle distances in units defined by km
.
Stresses emanate from the plate boundary along great circles, small circles or loxodromes associated with the pole of rotation. Hence the emanation distance is not necessarily the shortest distance to the plate boundary, which is measured along a great circle unrelated to the pole of rotation. The differences are particularly notable when the plate boundary is kinked or for convergent and divergent plate boundaries.
Wdowinski, S. (1998). A theory of intraplate tectonics. Journal of Geophysical Research: Solid Earth, 103(3), 5037<U+2013>5059. http://dx.doi.org/10.1029/97JB03390
data("nuvel1")
na_pa <- subset(nuvel1, nuvel1$plate.rot == "na")
data("plates")
plate_boundary <- subset(plates, plates$pair == "na-pa")
data("san_andreas")
res <- distance_from_pb(
x = san_andreas, PoR = na_pa, pb = plate_boundary, tangential = TRUE
)
head(res)
res.km <- distance_from_pb(
x = san_andreas, PoR = na_pa, pb = plate_boundary, tangential = TRUE, km = TRUE
)
range(res.km)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.