Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Recent coastal anthropogenic impact recorded in the Basque mud patch (southern Bay of Biscay shelf)
Irabien, M.J.; Cearreta, A.; Gómez-Arozamena, J.; Gardoki, J.; Martín-Consuegra, A.F. (2020). Recent coastal anthropogenic impact recorded in the Basque mud patch (southern Bay of Biscay shelf). Quaternary International 566-567: 357-367. https://dx.doi.org/10.1016/j.quaint.2020.03.042
In: Quaternary International. Elsevier: Oxford. ISSN 1040-6182; e-ISSN 1873-4553
|  |
| Trefwoorden |
Foraminifera [WoRMS]
Marien/Kust |
| Author keywords |
Metals; Foraminifera; Radiotracers; Pollen; Mud depocenter; Bay of Biscay |
| Auteurs | | Top |
- Irabien, M.J.
- Cearreta, A.
- Gómez-Arozamena, J.
|
- Gardoki, J.
- Martín-Consuegra, A.F.
|
|
| Abstract |
The historical anthropogenic impact on sediments from the Basque Mud Patch (southern Bay of Biscay) is explored using a multidisciplinary approach including the analysis of natural (210Pb) and artificial (137Cs, 239/240Pu) radiotracers, major elements (Al, Mn), metals (Zn, Pb, Cu, Cr), Pb isotopic ratios, and foraminiferal and pollen contents. The study of three short cores (19–46 cm), despite being hindered by the effects of biomixing, allow the calculation of a sedimentation rate of 1 ± 0.1 mm yr−1. Distribution with depth of Al-normalised concentrations of metals reflects an increasing trend since 1880 CE, related to the industrialization of the Basque coastal area. According to the Sediment Quality Guidelines applied, contents of Zn and Pb appear as a potential cause of concern, given that they exceed the values from which adverse biological effects can be occasionally expected. However, foraminiferal assemblages do not show recognizable changes along the cores following increasing trace metal concentrations. Finally, pollen results reveal an increasing trend of coniferous taxa and a parallel reduction of authochthonous Deciduous Quercus, probably as a consequence of reforestation works. Data obtained confirm that effects of coastal anthropogenic activities extend to the adjacent shelf, where muddy deposits are likely to act as a trap for contaminants. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
