International Journal of Marine Science, 2017, Vol.7, No.22, 205-213
211
Co showed extremely contaminated in all three stations. Co has close and strong relations with Fe and Ti. This
explains why these dissolution-resistant elements decline directly from the water column into the sediment.
According to the sedimentary rocks carbonates class, I
geo
values indicate contamination, but may be natural
enrichment from ultrabasic rocks, granite, olivine basalt mixtures (see Zr / Hf ratios, Zr and Y values). I
geo
for Ca
fell moderately to strongly contaminated can be autogenic (
Emiliania huxleyii
) (Türkoglu and Koray, 2004).
Figure 4 The relationships of metal values against Fe (orange curves is the 95% confidence levels, blue curves is the prediction
limits)
Note: Ti/Fe R=0.994, Cu/Fe R=0.980, Al/Fe R=0.972, Co/Fe R=0.991, Hg/Fe R=0.958, Sr/Ca R=0.986, Co/Al R=0.971
When the mean metal concentrations in the present study were compared with values of Bat and Ozkan (2015) in
many parts of the Black Sea coast, they were generally lower than those locations that situated in large
industrialized areas, river mouths, big ports and densely populated regions. Industrial and urban developments in
Turkey as a developing country mostly occur in coastal areas (Bakan and Özkoç, 2007). Further, Sur et al. (2012)
pointed out that the Turkish Black Sea coast is facing heavy metal pollution with high enrichment ratio. It is
emphasized that the data on heavy metals in surface sediments in the Black Sea coasts are available but
