Morfología de la pirita diagenética en sedimentos recientes del estuario del Río Odiel (SO de España).

  1. Borrego, J. 1
  2. Monterde, J. 1
  3. Morales, J.A. 1
  4. Carro, B. 1
  5. López, N. 1
  1. 1 Universidad de Huelva
    info

    Universidad de Huelva

    Huelva, España

    ROR https://ror.org/03a1kt624

Zeitschrift:
Geogaceta

ISSN: 0213-683X

Datum der Publikation: 2002

Nummer: 33

Seiten: 99-102

Art: Artikel

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Andere Publikationen in: Geogaceta

Zusammenfassung

Diagenetic sulphurs have been observed in subsurficial sediments from Odiel River Estuary. These sulfurs display three distinct morphologies: microcrystal aggregates, framboidal aggregates and euhedral pyrite macrocrystals. The genesis of these pyrite morphologies occurs in non-strictly-anoxic environments with a continuous sulphate and iron support where the bacterial activity induces a fast nucleation and growth of microcrystals. These optimal environmental conditions present in the Odiel estuary al/ow an accelerated evolution from framboidal morphologies to euhedral macrocristals during early diagenetic stages.

Fuente de los datos: Dialnet