principal strain ratio

Updated About content Print Article Share Article
views updated

principal strain ratio (ellipticity) The ratio (R) of the minimum strain axis to the maximum strain axis. In its simplest, two-dimensional form the long and short axes of initially circular markers are measured and plotted against one another; the slope of the best-fit line through the origin and a number of points is the strain ratio for that plane of measurement. More complex methods are employed to determine R minimum, R maximum, and R tectonic for initially non-spherical strain markers, e.g. conglomerate clasts.

More From

You Might Also Like