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- W3037621878 endingPage "104122" @default.
- W3037621878 startingPage "104122" @default.
- W3037621878 abstract "Three crustal-scale sequentially restored cross-sections along the Central External Betic Cordillera enable us to pinpoint the role of extreme crustal thinning, tectonic inheritance and salt tectonics during the evolution of the South-Iberian paleomargin from Mesozoic rifting to Cenozoic continental subduction. This interpretation puts forward the existence of a former highly extended Mesozoic rift system, namely the Subbetic Basin. The basin comprises three main domains that coincide with the classical zoning of the External Betics: (i) The Intermediate units in the northern basin margin represent primary thick minibasins separated by salt walls; (ii) the External Subbetic units attest an inflated salt body in a central trough; and (iii) the Median and Internal Subbetic units in the southern basin margin are analogous to a group of primary minibasins with intercalations of submarine volcanic rocks overlying hyperextended crust. Shortening led to the extrusion of a salt canopy and the development of secondary minibasins. Furthermore, the tectonic inversion of the Subbetic Basin created two major thrusts sheets detached at the Upper Triassic evaporites, accommodating a shortening of ≈100–145 km at early Eocene-middle Miocene time. Compression reshaped the hyperextended domain into a subduction trench, and the former transfer faults into tear faults. Ongoing shortening led to the subduction of the South-Iberian paleomargin beneath the Alborán Domain lithosphere. Our results provide a new perspective on the inversion of segmented rift basins partly floored by mantle rocks and call for a major reconsideration on the tectonic architecture and evolution of the Betic-Rif Cordillera." @default.
- W3037621878 created "2020-07-02" @default.
- W3037621878 creator A5000098572 @default.
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- W3037621878 creator A5048258292 @default.
- W3037621878 creator A5067826461 @default.
- W3037621878 creator A5074269201 @default.
- W3037621878 creator A5079999703 @default.
- W3037621878 date "2020-09-01" @default.
- W3037621878 modified "2023-10-17" @default.
- W3037621878 title "Evolution of the South-Iberian paleomargin: From hyperextension to continental subduction" @default.
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