Articles | Volume 9, issue 4
Research article
22 Aug 2018
Research article |  | 22 Aug 2018

Bimodal or quadrimodal? Statistical tests for the shape of fault patterns

David Healy and Peter Jupp


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by David Healy on behalf of the Authors (09 Jul 2018)  Author's response
ED: Referee Nomination & Report Request started (10 Jul 2018) by Federico Rossetti
RR by Nigel Woodcock (16 Jul 2018)
RR by Atilla Aydin (01 Aug 2018)
ED: Publish subject to minor revisions (review by editor) (03 Aug 2018) by Federico Rossetti
AR by David Healy on behalf of the Authors (06 Aug 2018)  Author's response    Manuscript
ED: Publish as is (07 Aug 2018) by Federico Rossetti
ED: Publish as is (07 Aug 2018) by Federico Rossetti(Executive Editor)
Short summary
Fault patterns formed in response to a single tectonic event often display significant variation in their orientations. This variation could be noise on underlying conjugate (or bimodal) fault patterns or it could be intrinsic signal from an underlying polymodal (e.g. quadrimodal) pattern. We present new statistical tests and open source R code to calculate the probability of a fault pattern having two (bimodal, or conjugate) or four (quadrimodal) clusters based on their orientations.