Significado paleogeográfico de las texturas y acumulaciones de carbonatos en perfiles edáficos de la Unidad Intermedia del Mioceno de la Cuenca de Madrid (prov. de Guadalajara)

• Ana María Alonso-Zarza ^[1] ; María Ángeles García del Cura ^[1] ; José Pedro Calvo Sorando ^[1]
  1. [1] Geociencias. Medio-Ambiente
• Localización: Geogaceta, ISSN 0213-683X, Nº. 5, 1988, págs. 29-33
• Idioma: inglés
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• Resumen

  • The presence as well as types of pedogenic carbonate deposits within miocene formations of the NE Madrid Basin are mainly linked to two majar differentitated environments:

    a) proximal alluvial fan environments and b) distal alluvial fan and flood-plain environments.

    The pedogenic profiles developed in palustrine areas show sorne features a/so found in b) deposits. In a broad sense, both mesoscale and textura/ features (Fe-Mn oxides remobilization and carbonate accumulation) of the pedogenic profiles display sorne variety resulting from different sedimentation rates, substrate nature and water hosting, al/ the parameters being controlled by pa/eogeography.