Karageorgis, Aristomenis P; Sioulas, Andreas I; Anagnostou, Christos L (2002): Sedimentology and geochemistry of surface sediments from the Pagassitikos Gulf [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.711561, Supplement to: Karageorgis, AP et al. (2002): Use of surface sediments in Pagassitikos Gulf, Greece, to detect anthropogenic influence. Geo-Marine Letters, 21(4), 200-211, https://doi.org/10.1007/s00367-001-0086-2
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Abstract:
Volos city and its port are situated in the northern part of Pagassitikos Gulf, a shallow, semi-enclosed marine area in central Greece. A wastewater treatment plant (WWTP) and pipeline operate in the same area. Muddy sediments with low carbonate contents cover most of the seabed, except for the Volos embayment and the western part of the gulf where sandy carbonates prevail. Bulk organic carbon contents and the organic carbon contents of the clay fractions are high in the vicinity of Volos embayment. High element (Pb, Cu, and Zn) contents and Igeo (geoaccumulation index) values were found for the clay fractions in the northern part of Pagassitikos Gulf. This enrichment is attributed to the discharge of raw domestic and industrial effluents of Volos city and port before the WWTP was installed. The dispersal of pollutants is essentially controlled by diffusion from point sources (city, port and WWTP) and is limited to Volos Bay. Relatively high Mn levels are ascribed to diagenetic formation of manganese carbonates (authigenic phase), whereas Cr and Ni are elevated due to weathering of ultrabasic formations on land.
Coverage:
Median Latitude: 39.218366 * Median Longitude: 23.019598 * South-bound Latitude: 39.054000 * West-bound Longitude: 22.865000 * North-bound Latitude: 39.350000 * East-bound Longitude: 23.170000
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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2 datasets
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Datasets listed in this publication series
- Karageorgis, AP; Sioulas, AI; Anagnostou, CL (2002): (Table 2) Grain-size analysis, carbonate and organic carbon contents of Pagassitikos Gulf surface sediments. https://doi.org/10.1594/PANGAEA.711559
- Karageorgis, AP; Sioulas, AI; Anagnostou, CL (2002): (Table 5) Heavy-metal contents and corresponding geoaccumulation index values of Pagassitikos Gulf surface sediments. https://doi.org/10.1594/PANGAEA.711560