Radiocarbon measurements and loose-sediment quantification of seafloor sediment samples off northern Mauritania, supplement to: Michel, Julien; Mateu-Vicens, G; Westphal, Hildegard (2011): Modern heterozoan carbonates from a eutrophic tropical shelf (Mauritania). Journal of Sedimentary Research, 81(9-10), 641–655

Julien Michel, G Mateu-Vicens & Hildegard Westphal
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....
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