Akademik Veri Yönetim Sistemi
12h International Multidisciplinary Scientific Geoconference (SGEM), Albena, Bulgaristan, 17 - 23 Haziran 2012, ss.181-183
In this study, a geochemical log from KK-241 well, which was drilled by the General Directorate of Mineral Research and Exploration (Ankara-Turkey) in the southern part of Central Turkey (Kavuklar/Ayranci-Konya) was used. Pliocene coaly sediments widespread in this region and have been studied in the core. Selected samples were screened for total organic carbon (TOC) content and then analyzed by Rock-Eval Pyrolysis. Visual kerogen analysis were also undertaken. TOC values are between 0.09 and 38.44 % in the investigation well. Hdyrogen indices (HI) are mostly below 150 mgHC/gTOC, increasing to 208 mgHC/gTOC in the Pliocene unit. Organic matter is composed predominantly of woody material, with a minor contribution of planty, amorphous and coaly material. Alteration colors of these materials are yellow and dark yellow. Spore colors of these samples are yellow and dark yellow (SCI: 3-4). The Tmax values of most of the samples range from 420-430 degrees C, confirming the essentially immature nature of the sample set. Kerogene in the deposite is primarily type II/III-III, as indicated by organic petrographic observations and Rock-Eval data. The studied coals and organic material underwent only low-grade transformation, a consequence of low lithostatic pressure. Therefore, the Kavuklar coals may be classified as subbituminous, corresponding to low maturity. The organic fraction of the coals is attributed mainly to increases in the humic group, with small percentages derived from the inertinite and liptinite groups.