Controls on the location of compressional deformation on the NW European margin
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Controls on the location of compressional deformation on the NW European margin. / Kimbell, G. S.; Stewart, M. A.; Gradmann, S.; Shannon, P. M.; Funck, T.; Haase, C.; Stoker, M. S.; Hopper, J. R.
In: Geological Society Special Publication, Vol. 447, No. 1, 2017, p. 249-277.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Controls on the location of compressional deformation on the NW European margin
AU - Kimbell, G. S.
AU - Stewart, M. A.
AU - Gradmann, S.
AU - Shannon, P. M.
AU - Funck, T.
AU - Haase, C.
AU - Stoker, M. S.
AU - Hopper, J. R.
N1 - Publisher Copyright: © 2017 The Author(s).
PY - 2017
Y1 - 2017
N2 - The distribution of Cenozoic compressional structures along the NW European margin has been compared with maps of the thickness of the crystalline crust derived from a compilation of seismic refraction interpretations and gravity modelling, and with the distribution of high-velocity lower crust and/or partially serpentinized upper mantle detected by seismic experiments. Only a subset of the mapped compressional structures coincide with areas susceptible to lithospheric weakening as a result of crustal hyperextension and partial serpentinization of the upper mantle. Notably, partially serpentinized upper mantle is well documented beneath the central part of the southern Rockall Basin, but compressional features are sparse in that area. Where compressional structures have formed but the upper mantle is not serpentinized, simple rheological modelling suggests an alternative weakening mechanism involving ductile lower crust and lithospheric decoupling. The presence of pre-existing weak zones (associated with the properties of the gouge and overpressure in fault zones) and local stress magnitude and orientation are important contributing factors.
AB - The distribution of Cenozoic compressional structures along the NW European margin has been compared with maps of the thickness of the crystalline crust derived from a compilation of seismic refraction interpretations and gravity modelling, and with the distribution of high-velocity lower crust and/or partially serpentinized upper mantle detected by seismic experiments. Only a subset of the mapped compressional structures coincide with areas susceptible to lithospheric weakening as a result of crustal hyperextension and partial serpentinization of the upper mantle. Notably, partially serpentinized upper mantle is well documented beneath the central part of the southern Rockall Basin, but compressional features are sparse in that area. Where compressional structures have formed but the upper mantle is not serpentinized, simple rheological modelling suggests an alternative weakening mechanism involving ductile lower crust and lithospheric decoupling. The presence of pre-existing weak zones (associated with the properties of the gouge and overpressure in fault zones) and local stress magnitude and orientation are important contributing factors.
UR - http://www.scopus.com/inward/record.url?scp=85036606906&partnerID=8YFLogxK
U2 - 10.1144/SP447.3
DO - 10.1144/SP447.3
M3 - Journal article
AN - SCOPUS:85036606906
VL - 447
SP - 249
EP - 277
JO - Geological Society Special Publication
JF - Geological Society Special Publication
SN - 0305-8719
IS - 1
ER -
ID: 355628100