Lower Jurassic to Early Paleogene Intraplate Contraction in Central Patagonia

  • César R. NavarreteEmail author
  • Guido M. Gianni
  • Andrés Echaurren
  • Andrés Folguera
Part of the Springer Earth System Sciences book series (SPRINGEREARTH)


Breakup and dispersion stages of Gondwana were ruled by crustal extension. In Patagonia, this regime was associated with the opening of extensional basins from the Jurassic onward, a process that was interrupted by the Andean Orogeny. New data generated from the hydrocarbon exploration allowed identifying Jurassic to Eocene contractional deformations, previously not registered in Central Patagonia. We summarize in this chapter evidence of five compressional events intercalated with the extensional regime that affected Central Patagonia from the Early Jurassic to the Paleogene. These events, denominated “C1,” “C2,” “C3,” “C4,” and “C5,” acted diachronicronously producing tectonic inversion of the Jurassic–Cretaceous depocenters. The first three contractional pulses occurred during the Jurassic, while the two remaining were Late Lower Cretaceous and Early Paleogene. The origin of this compressive activity would be linked to different processes that comprehended from thermal weakening of the crust produced by expansion of the Karoo thermal anomaly in Mid- to Late Jurassic times; the southward continental drift since the Early Jurassic; the ridge push generated by the opening of Weddell Sea since Mid-Jurassic times; and two mid-ocean ridge collisions during the Cretaceous.


Jurassic Cretaceous Within-plate contraction South America absolute movement Karoo thermal anomaly Patagonia 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • César R. Navarrete
    • 1
    Email author
  • Guido M. Gianni
    • 2
    • 3
  • Andrés Echaurren
    • 4
  • Andrés Folguera
    • 5
  1. 1.Departamento de GeologíaUniversidad Nacional de la Patagonia San Juan BoscoComodoro RivadaviaArgentina
  2. 2.Instituto Geofísico Sismológico Ing. Volponi (IGSV)Universidad de Nacional San JuanSan JuanArgentina
  3. 3.Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Buenos AiresArgentina
  4. 4.Instituto de Estudios Andinos Don Pablo Groeber, UBA—CONICET. Departamento de Ciencias Geológicas, FCENUniversidad de Buenos AiresBuenos AiresArgentina
  5. 5.Instituto de Estudios Andinos (IDEAN), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Universidad de Buenos AiresBuenos AiresArgentina

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