Neogene lithological units at the west end of the Guadalquivir Basin and their correlations with the Huelva-1 borehole (Huelva - Spain)

  1. A. Salazar 1
  2. J.C. Larrasoaña 1
  3. M. Abad 2
  4. E. Mayoral 3
  5. J.N. Pérez-Asensio 4
  6. M.L. González-Regalado 3
  7. R. Martín-Banda 5
  8. J. Civis 1
  9. M.P. Mata 1
  1. 1 Instituto Geológico y Minero de España
    info
    Instituto Geológico y Minero de España

    Madrid, España

    ROR https://ror.org/04cadha73

    Geographic location of the organization Instituto Geológico y Minero de España
  2. 2 Universidad de Atacama
    info
    Universidad de Atacama

    Copiapó, Chile

    ROR https://ror.org/022yres73

    Geographic location of the organization Universidad de Atacama
  3. 3 Universidad de Huelva
    info
    Universidad de Huelva

    Huelva, España

    ROR https://ror.org/03a1kt624

    Geographic location of the organization Universidad de Huelva
  4. 4 Universitat de Barcelona
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    Universitat de Barcelona

    Barcelona, España

    ROR https://ror.org/021018s57

    Geographic location of the organization Universitat de Barcelona
  5. 5 Universidad Complutense de Madrid
    info
    Universidad Complutense de Madrid

    Madrid, España

    ROR https://ror.org/02p0gd045

    Geographic location of the organization Universidad Complutense de Madrid
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Journal:
Geotemas (Madrid)

ISSN: 1576-5172

Year of publication: 2016

Issue Title: IX CONGRESO GEOLÓGICO DE ESPAÑA

Issue: 16

Pages: 173-176

Type: Article

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Abstract

A detailed surveying and a new geological mapof the sheet at 1:50.000 number 999/1016 (Huelva -Los Caños), located at the west end of the Guadalquivir Basin, has been carried out. This data allows us to propose a new organization of the lithological units present at the west sideof the Odiel River. These units include all the sedimentary record in this sector of the Guadalquivir Basin,rangingfromTortonian to Pliocene, but with shallower and coarser faciesthat are only present in this part of the basin. This fact is due to the location of the area, probably less subsiding due to a longerdistance from Betic-Rif orogen. The lithological units are described conciselyanda correlation with the core of the Huelva-1 borehole and with the outcrops of Huelva –Palos de la Frontera area is also proposed. Theunits are organized in a stack of sequences with a progradationalpattern, typical of a basin margin, and highlighting a gradual reduction of the accommodation space in the late Messinian and during the Pliocene.

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