Layer parallel shortening in salt-detached folds: constraint on cross-section restoration

Incidence and Importance of Tectonics and Natural Fluid Migration on Reservoir Evolution in Foreland Fold-And-Thrust Belts

“…In an example of salt-detached folds from the South Pyrenees, Sans et al (2003) derive a LPS shortening estimated at between 16 and 23% greater than the folding related shortening. Late-stage secondary porosity commonly develops along sub-vertical LPS features, making them efficient conducts for vertical fluid migration in most carbonate reservoirs (Van Geet et al, 2002;Ferket et al, 2004).…”

Spatial and temporal variation in penetrative strain during compression: Insights from analog models

“…The strain axes for the accumulated penetrative strain were found to be a reasonable approximation to the incremental strain axes, however (Tapp and Wickham, 1987). The amount of penetrative strain accommodated in a given region is also affected by variations in lithology of the overburden, the presence and specific rheology of any detachment layers, and the dip of the base of the deforming wedge, as well as the relative location within the orogen (Mitra, 1994;Whitaker and Bartholomew, 1999;Couzens-Schultz et al, 2003;Koyi and Vendeville, 2003;Sans et al, 2003;Koyi et al, 2004;Nilforoushan and Koyi, 2007;Weil and Yonkee, 2009). Penetrative strain features can be found up to 1200 km from the active plate margin (Craddock and van der Pluijm, 1989).…”

“…Measured amounts of penetrative strain range from 2% to 30%, where the larger end of this range may form a significant component of the total shortening (Engelder and Engelder, 1977;Engelder, 1979;Mitra and Yonkee, 1985;Wiltschko et al, 1985;Craddock and van der Pluijm, 1989;Mitra, 1994;Whitaker and Bartholomew, 1999;Sans et al, 2003;Koyi et al, 2004;Weil and Yonkee, 2009). Penetrative strain amount appears to decay away from the developing thrust front (Craddock and van der Pluijm, 1989;Koyi, 1995).…”

“…Different mechanisms (intravs. intergranular) may record different amounts of penetrative strain in a system; thus, the total penetrative strain must be estimated as a sum of components occurring in any given unit or thrust sheet (Groshong, 1975;Engelder, 1979;Mitra and Yonkee, 1985;Wiltschko et al, 1985;Mitra, 1994;Hogan and Dunne, 2001;Sans et al, 2003).…”

Early record of tectonic magnetic fabric during inversion of a sedimentary basin Short review and examples from the Corbières transfer zone (France)

“…So they aim at demonstrating that AMS and strain ellipsoids are coaxial. More precisely, work by Averbuch et al [1992,1993], and Grelaud et al [2000] in the Corbières (France) as well as by Sagnotti et al [1998] in northern Apennines (Italy), Bakhtari et al [1998] in Zagros (Iran), Grelaud [2001] in the Potwar basin (Pakistan) and Sanz et al [2002] in the southern flank of the Pyrenees (Spain) show that magnetic fabric is, in general, recorded before folding. Accordingly, Weiler and Coe [1997] show that magnetic fabric is recorded before syn-thrusting vertical axis rotations defined by paleomagnetic data in a very recent sedimentary wedge of Papouasia-New Guinea.…”