A note on the occurrence of the encrusting foraminifera Homotrema rubrum in reef sediments from two distinctive hydrodynamic settings
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| Natura: | Artículo científico |
| Lingua: | en |
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Academia Brasileira de Ciências
2002
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| _version_ | 1876424482857418752 |
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| author | Altair J. Machado |
| author_facet | Altair J. Machado |
| contents | A note on the occurrence of the encrusting foraminifera Homotrema rubrum in reef sediments from two distinctive hydrodynamic settings Altair J. Machado Simone S. Moraes Multidisciplinaria (Ciencias Naturales y Exactas) reefs coral coralline algae Homotrema rubrum Sediment samples from two different reef environments were analyzed for their foraminiferal content: theSioba/Rio do Fogo reefs, located in a broad shallow shelf dominated by strong currents (Rio Grande do NorteState), and the Praia do Forte reefs, located in a narrow shelf under the influence of wind-induced waves(Bahia State). The recorded foraminiferal fauna, from forty-six samples, is represented by 113 species, beingthe encrusting species Homotrema rubrum present in nine samples from the Sioba/Rio do Fogo reefs and in11 samples from Praia do Forte reefs. Homotrema fragments recovered from Sioba/Rio do Fogo are mostlypolished with rounded edges (51.59%) and some have a whitish color, whereas the specimens from Praiado Forte reefs are predominantly composed of reddish fragments (82.41%) with sharpened points (63.88%).The high wave energy on the reef environment of Praia do Forte is responsible for the fragmentation ofliving Homotrema tests (red color), which are deposited near to their source area. The effects of the strongcurrent system operating in the broad continental shelf of Sioba/Rio do Fogo is the major cause of sedimentreworking, producing polished grains accumulated in its reef surroundings. 2002 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32774412 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.74 |
| format | Artículo científico |
| id | redalyc_32774412 |
| institution | Redalyc |
| language | en |
| publishDate | 2002 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | A note on the occurrence of the encrusting foraminifera Homotrema rubrum in reef sediments from two distinctive hydrodynamic settings Altair J. Machado Multidisciplinaria (Ciencias Naturales y Exactas) reefs coral coralline algae Homotrema rubrum A note on the occurrence of the encrusting foraminifera Homotrema rubrum in reef sediments from two distinctive hydrodynamic settings Altair J. Machado Simone S. Moraes Multidisciplinaria (Ciencias Naturales y Exactas) reefs coral coralline algae Homotrema rubrum Sediment samples from two different reef environments were analyzed for their foraminiferal content: theSioba/Rio do Fogo reefs, located in a broad shallow shelf dominated by strong currents (Rio Grande do NorteState), and the Praia do Forte reefs, located in a narrow shelf under the influence of wind-induced waves(Bahia State). The recorded foraminiferal fauna, from forty-six samples, is represented by 113 species, beingthe encrusting species Homotrema rubrum present in nine samples from the Sioba/Rio do Fogo reefs and in11 samples from Praia do Forte reefs. Homotrema fragments recovered from Sioba/Rio do Fogo are mostlypolished with rounded edges (51.59%) and some have a whitish color, whereas the specimens from Praiado Forte reefs are predominantly composed of reddish fragments (82.41%) with sharpened points (63.88%).The high wave energy on the reef environment of Praia do Forte is responsible for the fragmentation ofliving Homotrema tests (red color), which are deposited near to their source area. The effects of the strongcurrent system operating in the broad continental shelf of Sioba/Rio do Fogo is the major cause of sedimentreworking, producing polished grains accumulated in its reef surroundings. 2002 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32774412 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.74 |
| title | A note on the occurrence of the encrusting foraminifera Homotrema rubrum in reef sediments from two distinctive hydrodynamic settings |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) reefs coral coralline algae Homotrema rubrum |
| url | https://www.redalyc.org/articulo.oa?id=32774412 |