Influência dos Fatores Ambientais na Preservação da Microfauna de Foraminíferos Bentônicos no Ambiente Recifal dos Parrachos de Maracajaú, RN, Brasil
| Autor: | Claudia Gutterres Vilela, Daniele Silva Batista, Eduardo A. M. Koutsoukos |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
food.ingredient
Taphonomy Geography Planning and Development benthic foraminifera lcsh:G1-922 Development Foraminifera food Reef lcsh:Physical geography General Environmental Science geography geography.geographical_feature_category biology Ecology Bioerosion taphonomy Geology Coral reef biology.organism_classification Oceanography Benthic zone Quinqueloculina Peneroplis Environmental science coral reef Economic Geology lcsh:GB3-5030 lcsh:Geography (General) |
| Zdroj: | Anuário do Instituto de Geociências, Vol 30, Iss 2, Pp 92-103 (2007) |
| ISSN: | 0101-9759 |
| Popis: | Taphonomy focuses on the post-mortem processes of transport and preservation of biotic remains in the sedimentary record, and as such it has important applications for paleoenvironmental reconstructions. The aim of this work is to verify the degree of dissolution, abrasion, bioerosion and fragmentation in foraminiferal tests recovered from bottom sediments of the Parrachos de Maracajaú, Rio Grande do Norte, and to estimate the influence of these taphonomic processes in the distributon and preservation of the assemblages. Fifty-one species of benthic foraminifera have been found in the studied site. The taxonomic composition is typical of a coral reef environment. Amphistegina lessoni, Sorites marginalis, Quinqueloculina lamarckiana, Q. agglutinans, Peneroplis carinatus and Archaias angulatus are abundant in all the studied localities. The energy of the environment was interpreted as high. The species have been grouped into two groups, and the statistical data show that all four taphonomic processes (dissolution, abrasion, bioerosion and fragmentation) have influenced the distribution and preservation patterns of the foraminifera. |
| Databáze: | OpenAIRE |
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