Subsidence and strike-slip tectonism of the upper continental slope off Manzanillo, Mexico | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

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  Subsidence and strike-slip tectonism of the upper continental slope off Manzanillo, Mexico

Publication Type:

Journal Article

Source:

Tectonophysics, Volume 398, Issue 3-4, p.115-140 (2005)

ISBN:

0040-1951

Keywords:

Géosciences marines ; Tectonics; Fore-arc; Mexico; Seismic reflection; Oblique convergence; Arc parallel stretching, UMR 7096

Abstract:

The direction of convergence between the Rivera and North American plates becomes progressively more oblique (in a counter-clockwise sense as measured relative to the trench-normal direction) northwestward along the Jalisco subduction zone. By analogy to other subduction zones, the forces resulting from this distribution of convergence directions are expected to produce a NW moving, fore-arc sliver and a NW–SE stretching of the fore-arc area. Also, a series of roughly arc parallel strike-slip faults may form in the fore-arc area, both onshore and offshore, as is observed in the Aleutian arc.