RT Book, Section
T1 Orocline triggered lithospheric delamination
A1 Gutiérrez Alonso, Gabriel
A1 Fernández Suárez, Javier
A1 Weil, Arlo B.
A2 Weil, Arlo B
A2 Sussman, Aviva J.
AB Late- to post-orogenic oroclinal bending in conjunction with thinning of the lithospheric mantle is potentially an important component of the waning stages of plate convergence in collisional orogenies. This paper addresses possible and hitherto unexplored cause-effect relationships between oroclinal bending of an originally linear orogenic belt and lithospheric thinning and delamination based on an example from the Western European Variscan Belt. We suggest that late- to post-orogenic bending of the lithosphere around a vertical axis may cause thickening and eventual detachment of the lithospheric root of orogenic belts such as the Western European Variscan Belt. The proposed hypothesis is consistent with the chronology of tectonic, metamorphic, magmatic, and hydrothermal events recorded in the Western European Variscan Belt. Moreover, this hypothesis could explain the preservation of the lithospheric root in linear orogens, like the Urals, which lack significant modification following the initial phase of “orthogonal” lithospheric thickening.
PB Geological Society of America
SN 0072-1077
YR 2004
FD 2004
LK https://hdl.handle.net/20.500.14352/125443
UL https://hdl.handle.net/20.500.14352/125443
LA eng
NO Gutiérrez-Alonso, G., Fernández-Suárez, J., and Weil, A.B., 2004, Orocline triggered lithospheric delamination, in Sussman, A.J., and Weil, A.B., eds., Orogenic Curvature: Integrating Paleomagnetic and Structural Analyses: Geological Society of America Special Paper 383, p. 121–130
NO Ministerio de Ciencia y Tecnología (España)
DS Docta Complutense
RD 17 dic 2025