Student:	İlknur BATAR
Supervisor:	Prof. Dr. Cüneyt ŞEN
Department:	Jeoloji Mühendisliği
Institution:	Graduate School of Natural and Applied Sciences
University:	Karadeniz Technical University, Turkey

Title of the Thesis:	Geochemistry of the Sea Sediments Between Akçakoca (Düzce) and Giresun
Level:	M.Sc.
Acceptance Date:	4/2/2008
Number of Pages:	54
Registration Number:	i1887

Summary:

The Black Sea is an inland sea which is located in the North of Turkey. The Bosphorus

Strait connects it to the Sea of Marmara, then the long island-bound strait of the

Dardenelles to the Aegean Sea region of the Mediterranean. The Black sea is also

connected to the Sea of Azov by the Strait of Kerch and has been the subject of many

studies, due to its unique properties.

The aim of this work was to investigate the concentrations of major and trace elements

in the sediments of the Black Sea an evaluate the metal contamination with Al

normalizations. For the study, the Black Sea sediments were collected from 14 stations by

R/V Denar-I exploration boat. Major and trace element concentrations of sediments were

determined after chemical analysis.

Generally, Fe and K concentrations are below the average shallow sea sediment

(Wedepohl, 1969) Fe and K concentrations. The high Ni, Co, Pb, Mn, Cu, Sr, Ba, As and

Cd contents at the top of the cores from stations which are close to the Eastern part of the

Black Sea may most probably suggest a combination of diagenetic and anthropogenic

effects. Pb, Mn, Cu, Ni and Co concentrations have been enriched within the bottom

sediments of Black Sea according to the classification of sediment enrichment factor

(SEF).

Previous data and results obtained from this study show an increase in Pb, Zn, Cu, Ni,

Co and Mn contents in the eastern bottom sediments. This is because of the metal rich

rocks in coast areas and associated economic mineral deposits in the catchment areas of

rivers.

Key Words: Black Sea, sediments, metal contamination.