Uso combinado de técnicas de imagen 2D y 3D para el análisis icnológico de sondeos de sedimentos marinos modernos

  1. Javier Dorador 1
  2. F.J. Rodríguez-Tovar 2
  3. J. Titschack 3
  1. 1 Royal Holloway University of London
    info

    Royal Holloway University of London

    Egham, Reino Unido

    ROR https://ror.org/04g2vpn86

  2. 2 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

  3. 3 MARUM – Centre for Marine Environmental Sciences
Journal:
Geotemas (Madrid)

ISSN: 1576-5172

Year of publication: 2021

Issue Title: X Congreso Geológico de España

Issue: 18

Pages: 199-201

Type: Article

More publications in: Geotemas (Madrid)

Abstract

During last decades, ichnological analysis has become established as a very useful tool in several geological disciplines, due to its aplication on palaeoclimatic studies or hydrocarbon exploration, among others. Many of those studies are conducted on sediment cores, with their visibility limitations, especially when working with poorly consolidated modern marine sediments. In the last years, 2D images treatment has been successfully applied to improve the visibility of trace fos- sils and the identification of some ichnological features. Moreover, 3D computed tomography (CT) techniques were applied, but with less success due to the low density contrast between the biogenic structures and the host sediment. Here we show a CT processing technique that allow to isolate for the first time some structures in modern marine sediments and to identify some interesting ichnological features as the dominant orientation. Combination of this information with the data obtained using 2D images, increase the resolution of the ichnological analysis, improving the inferred interpretations.