@article{fdi:010068218,
  title = {{E}ffect of strain-weakening on {O}ligocene-{M}iocene self-organization of the {A}ustralian-{P}acific plate boundary fault in southern {N}ew {Z}ealand : insights from numerical modelling},
  author = {{F}eng, {X}iaojun and {J}essell, {M}. {W}. and {A}mponsah, {P}. {O}. and {M}artin, {R}. and {G}anne, {J}{\'e}r{\^o}me and {L}iu, {D}. {Q}. and {B}att, {G}. {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}ectonic inheritance acquired from past geological events can control the formation of new plate boundaries. {T}he aim of this paper is to explore the role of inherited {NE} and {NW} trending fabrics and their rheological influence on the propagation of {O}ligocene-{M}iocene strike-slip faulting that matured to become the {A}ustralian-{P}acific plate boundary fault in southern {N}ew {Z}ealand. {S}train weakening plays a significant role in controlling the formation, growth and evolution of strain localization. {I}n this study, three-dimensional thermo-mechanical models have been used to explore the effect of strain weakening on the {O}ligocene-{M}iocene self-organization of strain localization. {S}train weakening is simulated through decreasing either the coefficient of friction of upper crust, its cohesion, or the rheological viscosity contrast between the inherited structures and their surrounding wall rocks. {V}iscosity contrast is obtained by varying the viscosity of inherited structures. {S}oftening coefficient (a) is a measure of strain weakening. {O}ur experiments robustly demonstrate that a primary boundary shear zone becomes mature quicker when softening coefficients are increased. {D}eformation is focused along narrow high-strain shear zones in the centre of the model when the softening coefficients are high, whereas the strain is more diffuse with many shear zones spread over the model and possibly some high-strain shear zones focused near one border at lower softening coefficients. {V}arying the viscosity contrast has less effect on the distribution of maximum finite strain. {U}nder simple-shear boundary conditions, {NW} trending inherited structures make a major contribution to forming early zones of highly focused strain, up to a shear strain of about gamma = 3.7. {D}uring this process, most {NE}-trending structures move and rotate passively, accommodate less strain, or even be abandoned through time.},
  keywords = {{S}train-weakening ; {F}ault ; {A}lpine {F}ault ; {N}umerical modelling ; {NOUVELLE} {ZELANDE}},
  booktitle = {},
  journal = {{J}ournal of {G}eodynamics},
  volume = {100},
  numero = {},
  pages = {130--143},
  ISSN = {0264-3707},
  year = {2016},
  DOI = {10.1016/j.jog.2016.03.002},
  URL = {https://www.documentation.ird.fr/hor/fdi:010068218},
}