Cr-PGE mineralization, petrology and tectonics of the allochthonous complexes of NW Spain and Portugal

  1. Lunar, R. 3
  2. Capote, R. 3
  3. Izquierdo, B.G. 3
  4. Monterrubio, S. 4
  5. Moreno, T. 1
  6. Gibbons, W. 1
  7. Prichard, H. 1
  8. Ibarguchi, J.Ignacio G. 2
  9. Ábalos, B 2
  10. Puelles, P. 2
  11. Zalduegui, J.F.S 2
  12. Meireles, C 5
  13. Pereira, E. 5
  14. Castro, P.G 5
  15. Ribeiro, A.A.R. 5
  16. Santos, J.F. 6
  17. Munhá, J.M.U 7
  1. 1 Cardiff University
    info

    Cardiff University

    Cardiff, Reino Unido

    ROR https://ror.org/03kk7td41

  2. 2 Universidad del País Vasco/Euskal Herriko Unibertsitatea
    info

    Universidad del País Vasco/Euskal Herriko Unibertsitatea

    Lejona, España

    ROR https://ror.org/000xsnr85

  3. 3 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

  4. 4 Universidad de Salamanca
    info

    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

  5. 5 Instituto Geológico e Mineiro (Portugal)
  6. 6 Universidade de Aveiro
    info

    Universidade de Aveiro

    Aveiro, Portugal

    ROR https://ror.org/00nt41z93

  7. 7 Universidad de Lisboa
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Proceedings:
Field Trips Guide Books : From PR01 to B15

Publisher: APAT

Year of publication: 2004

Volume: 63

Issue: 1

Congress: 32nd International Geological Congress

Type: Conference paper

GOOGLE SCHOLAR

Abstract

The North-Western Iberian Peninsula has an internationally recognized reputation from a petrological, tectonic and mineralogical point of view. The main objectives of this field trip will be: 1) to visit the site of a recently described new type of Cr mineralization with exceptionally high PGE contents, and 2) to analyze and discuss the petrological, geochemical and tectonic processes that produced it. The geological setting of this area represents a unique example of stacked thrusts of varied nature, including what has recently been interpreted as the root of a volcanic arc. In this area it is possible to observe the mantle-crust contact (involving a layered complex with dunites and pyroxenites), fragments of lower crust (of granulite grade), one of the best preserved eclogitic nappes in the world and several ophiolitic slices, all of them emplaced over the Gondwana continental margin during the Variscan orogeny. The field trip will start and finish in Santiago de Compostela (Galicia), the end of the famous Camino de Santiago pilgrim route, with numerous Romanesque churches and important Celtic and Roman archeological ruins.