Title: Trazas fósiles e Icnofacies y su relación con el ambiente sedimentario, Formación Hawaz, Ordovícico, Libia
Abstract: The ichnological study of the Hawaz Formation evidence the existence of an important correlation between lithofacies associations and trace fossil assemblages. Recognized ichnoassemblages can be linked to two archetypal Ichnofacies: Skolithos and Cruziana. The first is represented by strogly bioturbated sandstones with Skolithos, a vertical dwelling burrow od a suspension-feeder. These piperocks characterize persistent high-energy settings, such as those found in shoreface or inner platform setting. In contrast, the Cruziana ichnofacies is constituted by horizontal locomotion, feeding or resting trace, mostly produced by deposit-feeders. The most abundant trace fossils are Cruziana, Rusophycus and Artrophycus. This Ichnofacies is found in hetherolitic facies corresponding to lower-energy shallow subtidal setting. The incorporation of ichnological data to sedimentological analysis demonstrates to be a powerful tool in paleoenvironmental interpretation of depositional settings.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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