Tabacarie Lake – a model of urban pollution

Abstract. Tabacarie coastal lake has been surrounded, during the past century, by the fast developing city of Constanta. Consequently, the lake has directly suffered from human interventions, such as dredging, embankments and heavy pollution. The lake surface sediments are generally fine grained: clayey silts and silts, with sands appearing only on dredged bottoms. The review of the chemical composition of upper sediments pointed out the presence of large quantities of certain heavy metals, in particular: Zn, Ba, Cu and Pb, dispersed, mainly, near the discharge points of rainwater pipes

Evoluzione recente del Delta del Danubio in base a documenti cartografici

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Biogeophysical, geophysical and geochemical research on the western Black Sea shelf.

Abstract. Expeditionary research along the western Black Sea shelf took place in 1990 within the International INTER-GEO-ECO-MONITORING Programme. The programme included continuous bathymetric recordings, measurements of the electromagnetic field and emissions of atmospheric Mercury, and biogeophysical applications. The high degree of correlation between the results of the four methods used, which are very different, considering the parameters examined, reveals the existence of a common denominator. Thus, the fault planes represent the transmission paths of some elements (like Mercury) from the Earth’s Mantle to the surface, generate anomalies in the electromagnetic field and induce biogeophysical anomalies reflected in the microrelief of the sea floor