ÇAĞRILI KONUŞMALAR / KEYNOTES Invited Speeches ... - TPJD

The Element Enrichments of the Rocks Rich in Organic Matter around
Karanlıkdere (Göynük / Bolu)
Murad Çilsal 1 , Ali Sarı 2 , Şükrü Koç 2
1 Ankara University, Graduate School of Natural and Applied Sciences, Ankara
2 Ankara University, Faculty of Engineering, Department of Geological Engineering, Ankara
The study area is located at southwest of Göynük (Bolu) in Paleocene-Eocene Hatıldağ Formation.
A Scaled Stratigraphic Column has been done with 323 m thickness and total of 113 samples
were collected from study area. Interbedded oil shale, bituminous marn and limestone layers
are dominant throughout the stratigraphic section. The geochemical analyses were carried
out on collected samples and the contents of major, trace and REE (Rare Earth Elements) have
been determined. The element enrichments of bituminous rocks were determined in studied
area within the scope. Obtained element abundances were correleted with the organic rocks
belonging to the certain earth’s redox/sulfidic depositional enviroments and the amounts of
enrichment were determined. Considerable element enrichments in studied area are Ti, Fe, Mg,
Ca and K as major elements and As, Cr, Mn, Ni, Rb, Sr and Zn as trace elements.
Keywords: Hatıldağ Formation, oil shale, bituminous marl, major element, trace element
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