Encyclopedia of Geobiology

2011 Edition
| Editors: Joachim Reitner, Volker Thiel

Frutexites

  • Marta Rodríguez-Martínez
  • Christine Heim
  • Nadia-Valérie Quéric
  • Joachim Reitner
Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-9212-1_94

Synonyms

Colloform limonitic crusts; Frutexites crusts; Frutexites-like forms; Frutexites microstromatolite; Frutexites tuffs; Haematitic/ferruginous/iron microstromatolites; Iron dendritic aggregates; Iron shrubs; Pillar-shaped microstromatolites

Definition

Frutexites is a problematic microfossil rich in iron. From a taxonomic point of view, only five species have been figured ( Frutexites arboriformis, Maslov, 1960; F. microstroma, Walter and Awramik, 1979; Frutexites sp. 1, Frutexites sp. 2, and New gen. 3, Tsien, 1979), although the authors mostly use the term Frutexites sensu lato. The genus Frutexites was coined by Maslov ( 1960) in order to describe submillimeter-sized, iron-rich, and subordinate calcite microfossils (Figure 1). Frutexites have a dendritic shape formed by divergently branched microcolumns. The height and width of microcolumns as well as their composition and microstructure can vary (Table 1). The preservation of microstructure is strongly controlled by its...

Keywords

Lower Cambrian Ferromanganese Crust Oman Mountain Coralline Sponge Neptunian Dike 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Marta Rodríguez-Martínez
    • 1
  • Christine Heim
    • 2
  • Nadia-Valérie Quéric
    • 2
  • Joachim Reitner
    • 2
  1. 1.Departamento de Geología Facultad de BiologíaUniversidad de AlcaláAlcalá de HenaresSpain
  2. 2.Geobiology Group Geoscience CenterUniversity of GöttingenGöttingenGermany