El Médano megarhizoliths field, TenerifeOrigin and paleoenvironmental significance

  1. Ana M. Alonso-Zarza 1
  2. Ramón Casillas Ruiz 2
  1. 1 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

  2. 2 Universidad de La Laguna
    info

    Universidad de La Laguna

    San Cristobal de La Laguna, España

    ROR https://ror.org/01r9z8p25

Journal:
Geogaceta

ISSN: 0213-683X

Year of publication: 2019

Issue Title: Comunicaciones presentadas en la LXV Sesión Científica / El Hierro, 23 de noviembre de 2018

Issue: 65

Pages: 27-30

Type: Article

DIALNET GOOGLE SCHOLAR lock_openArias Montano editor

More publications in: Geogaceta

Abstract

The vertical cylindrical structures that occur in El Médano (Tenerife) have had varied interpretations. The structures are about a few decimeters in diameter and may reach near 1 m high. In this paper we provide data that support their interpretation as megarhizoliths formed by roots and associated microorganisms within eolian deposits. The common association with smaller roots and insect traces, as well as the fine carbonate laminae indicate their formation in vegetated soils during relatively wetter periods. The micritic-microesparitic coatings, the peloids, ooids and the alveolar septal structures confirm the biogenic origin of these structures.

Data source: Dialnet