Quantitative determination of fault slip magnitude: a review

Shunshan Xu Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Blvd. Juriquilla 3001, Querétaro, C.P. 76230, Mexico.
Angel Francisco Nieto-Samaniego Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Blvd. Juriquilla 3001, Querétaro, C.P. 76230, Mexico.
Huilong Xu South China Sea Institute of Oceanology, Chinese Academy of Sciences, st Xingang Road, Guangzhou, China.
Wei Li South China Sea Institute of Oceanology, Chinese Academy of Sciences, st Xingang Road, Guangzhou, China.
Ricardo Nieto-Fuentes Centro de Investigación en Matemáticas (CIMAT), Jalisco S/N, Col. Valenciana, Guanajuato, Gto., C.P. 36023, Mexico.

DOI: https://doi.org/10.22201/cgeo.20072902e.2023.1.1728

Keywords: fault slip, piercing points, fault separation, displacement vector

Abstract

In geology, a fault is a rock fracture with perceptible relative displacement of the opposite sides of the fracture. Quantitatively obtaining the activity history of faults depends mainly on the estimation of fault slip and the study of markers, which can be used to understand and analyze the tectonic evolution of the faulted regions. Fault slip is calculated by restoring points that were originally adjacent before the deformation, those points are named piercing points. In this paper, we review some published methods to determine fault slip, using: (1) the offset of contours on structural contour maps; (2) offset on seismic reflection sections; (3) a known slip vector (fault striae) and one marker; (4) two known markers. Cases (3) and (4) are commonly applied to field work and geological maps.

Published

2023-04-01

Issue

Vol 40 No 1 (2023)

Section

SPECIAL SECTION "20 years of the Centro de Geociencias, UNAM"

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.