The Late Triassic–Middle Jurassic Passive Margin Stage

  1. Juan José Gómez
  2. Roque Aguado
  3. Ana Cristina Azerêdo
  4. José Emilio Cortés
  5. Luís Vítor Duarte
  6. Luis O’Dogherty
Llibre:
The Geology of Iberia. A Geodynamic Approach.: Volume 3: The Alpine Cycle
  1. Cecilio Quesada Ochoa (coord.)
  2. José Tomás de Oliveira (coord.)

Editorial: Springer Suiza

ISBN: 978-3-030-11294-3

Any de publicació: 2019

Pàgines: 113-167

Tipus: Capítol de llibre

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Resum

During the Late Triassic-Middle Jurassic interval Iberia acted as a passive margin, where extensional or transtensional faulting, linked to the propagation of the Central Atlantic and the opening of the Ligurian Tethys, generated a NW and NE trending fault system that conditioned facies and thickness distribution. These faults also favored the implantation of mantle plumes and associated volcanism, giving rise to the evolution from a magma-poor passive margin, during the latest Triassic to the Pliensbachian, to a magma-rich passive margin, which developed from the Pliensbachian to the Bajocian. Progressive extensional faulting, that propagated from east to west reached a climax during the Toarcian, probably related to the onset of sea-floor spreading in the northern part of the Central Atlantic.

Fuente de los datos: Dialnet