Radiocarbon measurements and loose-sediment quantification of seafloor sediment samples off northern Mauritania
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2010
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| _version_ | 1867171360376094720 |
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| author | Michel, Julien Mateu-Vicens, G Westphal, Hildegard |
| author_facet | Michel, Julien Mateu-Vicens, G Westphal, Hildegard |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Heterozoan carbonates are typical for extratropical sedimentary systems. However, under mesotrophic to eutrophic conditions, heterozoan carbonates also form in tropical settings. Nevertheless, such heterozoan tropical sedimentary systems are rare in the modern world and therefore are only poorly understood to date. Here a carbonate depositional system is presented where nutrient-rich upwelling waters push onto a wide shelf. These waters warm up in the shelf, giving rise to the production and deposition of tropical heterozoan facies. The carbonate facies on this shelf are characterized by a mixture of tropical and cosmopolitan biogenic sedimentary grains. Study of facies and taxonomy are the key for identifying and characterizing tropical heterozoan carbonates and for distinguishing them from their coolwater counterparts, in particular in the past where the oceanography cannot be determined directly. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_753003 |
| institution | PANGAEA |
| language | en |
| publishDate | 2010 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Radiocarbon measurements and loose-sediment quantification of seafloor sediment samples off northern Mauritania Michel, Julien Mateu-Vicens, G Westphal, Hildegard 261; 262; BG; Boomerang-Grab; Center for Marine Environmental Sciences; CTD/Rosette; CTD-RO; Dredge; DRG; GeoB11501-1; GeoB11511B; GeoB11511C; GeoB11511D; GeoB11511E; GeoB11511F; GeoB11511G; GeoB11513-2; GeoB11514-1; GeoB11515-1; GeoB11516-1; GeoB11522-1; GeoB11524-1; GeoB11525-1; GeoB11526-1; GeoB11527-1; GeoB11528-1; GeoB11529-1; GeoB11530-1; GeoB11531-1; GeoB11532-1; GeoB11533-1; GeoB11534-1; GeoB11535-1; GeoB11540-1; GeoB11547-1; GeoB11549-1; GeoB11591A; GeoB11593-1; GeoB11594-1; GeoB11595-1; GeoB11597-1; GeoB11601-1; GeoB11602-1; GeoB11603-1; GeoB11604-1; GeoB11606-1; GeoB11607-1; GeoB11613-2; GeoB11614-1; GeoB11614-2; GeoB13018-1; GeoB13019-1; Giant box corer; GKG; Grab; GRAB; MARUM; off Mauritania; POS346; POS-346; POS346_01; POS346_100-1; POS346_101-1; POS346_102-1; POS346_103-1; POS346_105-1; POS346_111-2; POS346_112-1; POS346_112-2; POS346_11B; POS346_11C; POS346_11D; POS346_11E; POS346_11F; POS346_11G; POS346_13-2; POS346_14-1; POS346_15-1; POS346_16-1; POS346_22-1; POS346_24-1; POS346_25-1; POS346_26-1; POS346_27-1; POS346_28-1; POS346_29-1; POS346_30-1; POS346_31-1; POS346_32-1; POS346_33-1; POS346_34-1; POS346_35-1; POS346_40-1; POS346_47-1; POS346_49-1; POS346_91A; POS346_93-1; POS346_94-1; POS346_95-1; POS346_97-1; POS346_98-1; POS366/1; Poseidon; van Veen Grab; VGRAB Heterozoan carbonates are typical for extratropical sedimentary systems. However, under mesotrophic to eutrophic conditions, heterozoan carbonates also form in tropical settings. Nevertheless, such heterozoan tropical sedimentary systems are rare in the modern world and therefore are only poorly understood to date. Here a carbonate depositional system is presented where nutrient-rich upwelling waters push onto a wide shelf. These waters warm up in the shelf, giving rise to the production and deposition of tropical heterozoan facies. The carbonate facies on this shelf are characterized by a mixture of tropical and cosmopolitan biogenic sedimentary grains. Study of facies and taxonomy are the key for identifying and characterizing tropical heterozoan carbonates and for distinguishing them from their coolwater counterparts, in particular in the past where the oceanography cannot be determined directly. |
| title | Radiocarbon measurements and loose-sediment quantification of seafloor sediment samples off northern Mauritania |
| topic | 261; 262; BG; Boomerang-Grab; Center for Marine Environmental Sciences; CTD/Rosette; CTD-RO; Dredge; DRG; GeoB11501-1; GeoB11511B; GeoB11511C; GeoB11511D; GeoB11511E; GeoB11511F; GeoB11511G; GeoB11513-2; GeoB11514-1; GeoB11515-1; GeoB11516-1; GeoB11522-1; GeoB11524-1; GeoB11525-1; GeoB11526-1; GeoB11527-1; GeoB11528-1; GeoB11529-1; GeoB11530-1; GeoB11531-1; GeoB11532-1; GeoB11533-1; GeoB11534-1; GeoB11535-1; GeoB11540-1; GeoB11547-1; GeoB11549-1; GeoB11591A; GeoB11593-1; GeoB11594-1; GeoB11595-1; GeoB11597-1; GeoB11601-1; GeoB11602-1; GeoB11603-1; GeoB11604-1; GeoB11606-1; GeoB11607-1; GeoB11613-2; GeoB11614-1; GeoB11614-2; GeoB13018-1; GeoB13019-1; Giant box corer; GKG; Grab; GRAB; MARUM; off Mauritania; POS346; POS-346; POS346_01; POS346_100-1; POS346_101-1; POS346_102-1; POS346_103-1; POS346_105-1; POS346_111-2; POS346_112-1; POS346_112-2; POS346_11B; POS346_11C; POS346_11D; POS346_11E; POS346_11F; POS346_11G; POS346_13-2; POS346_14-1; POS346_15-1; POS346_16-1; POS346_22-1; POS346_24-1; POS346_25-1; POS346_26-1; POS346_27-1; POS346_28-1; POS346_29-1; POS346_30-1; POS346_31-1; POS346_32-1; POS346_33-1; POS346_34-1; POS346_35-1; POS346_40-1; POS346_47-1; POS346_49-1; POS346_91A; POS346_93-1; POS346_94-1; POS346_95-1; POS346_97-1; POS346_98-1; POS366/1; Poseidon; van Veen Grab; VGRAB |
| url | https://doi.org/10.1594/PANGAEA.753003 |