The geometry of listric normal faults and deformation in their hangingwalls

Fault geometries on Uranus’ satellite Miranda: Implications for internal structure and heat flow

“…Data needed and average measured values Estimated depth to detachment (z) z = A/W A : area dropped below regional surface (2.2 Â 10 5 km ± 1.5 Â 10 4 km 2 ) 6.7 km ± 476 m Gibbs (1983) W: width of the listric fault system (3.2 km ± 510 m) z = A/H A 9.0 km ± 632 m Gibbs (1983) H: heave of the rollover anticline (2.4 km ± 1.7 km) z = A/D A 7.9 km ± 713 m Williams and Vann (1987) D: displacement of the rollover anticline assuming no shearing (27 km ± 1.5 km) z = A/[(D + W À F)/2] A, D, W 8.3 km ± 638 m Williams and Vann (1987) F: folded bed length (7.4 km ± 564 m) (Ojakangas and Stevenson, 1989). We have incorporated this Europan strain rate into our calculations because Miranda may have experienced greater strain rates in the past than associated with terrestrial conditions due to a previous tidal resonance with Umbriel and/or Ariel (Tittemore and Wisdom, 1990).…”

“…12 and Table 5, the depth to detachment of a listric fault system can be estimated if the following parameters are determined: (1) the area dropped below the regional surface (A) and the width of the listric fault system (W) (Gibbs, 1983), (2) A and the displacement of the rollover anticline assuming no shearing (D) (Gibbs, 1983), (3) A and the heave of the rollover anticline (H) (Williams and Vann, 1987), and (4) A, H, D and the folded bed length of the rollover anticline (F) (Williams and Vann, 1987).…”

“…For listric faults on Earth, measurements of fault geometry may be used to estimate the depth to a detachment (Gibbs, 1983;Williams and Vann, 1987;Poblet and Bulnes, 2005). A detachment may develop along a brittle-ductile transition zone at depth (Shelton, 1984;Ord and Hobbs, 1989;Regenauer-Lieb et al, 2004), which has been commonly inferred for icy bodies (e.g.…”

Listric versus planar normal fault geometry: an example from the Eisenstadt-Sopron Basin (E Austria)

“…Davison 1986;Williams and Vann 1987;White 1992;Yamada and McClay 2003). Most of these models are based Fig.…”

“…Since listric faults and associated hanging wall anticlines are common targets for hydrocarbon exploration, the balancing methods like the technique applied in this study have been widely used in order to support seismic interpretations (e.g. Gibbs 1984;Williams and Vann 1987).…”