The geological evolution of the Pyrenees oriented to the hydrocarbon exploration


The trip combines the analysisi of the different play concepts present in the Pyrenees with the study of the sedimentary and tectonic evolution of the chain, from Paleozoic basement, Triassic red beds and salt to Tertiary well-known foreland basins, through Jurassic and Cretaceous carbonaste platforms dominated by extension and salt tectonics.

Salt tectonics structures and their associated sediments are classic targets for hydrocarbon exploration. Recently, the south-central Pyrenees are becoming an excellent lab to test Mesozoic seismic-scale structures controlled by salt tectonics, in places not too overprinted by posterior Alpine compression. We illustrate analogue examples for drilled structures where seismic data do not provide an image, and we consider the role of salt in influencing the distribution of potential reservoir facies and fracturing in the adjacent hostrocks. The trip 

Guide: Lluís Ardèvol and Jaume Vergés
Location: south-central Pyrenees, the field trip begins and ends in Barcelona
Meeting point: Monday 11, 14:00h, Barcelona downtown or airport
Trip end: Friday 15, 18:00h meeting point or airport
Delivery: field trip
Physical demand: average hike (maximum 1h walk per day) with some hills



  • Basement and Triassic pre-salt
  • Triassic salt, shales and evaporites
  • Jurassic-Lower Cretaceous carbonates (the Sopeira minibasin)
  • Upper Cretaceous carbonates and flysch deposits


  • South-central Pyrenean diapiric provinces
  • Pre-salt structural framework
  • Triassic salt
  • Minibasin types
  • The Sopeira minibasin: a museum of salt-related structures
  • Salt feeders, sheets, canopies, wings
  • Large-scale and sub-seismic salt welds

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