ORGANIC GEOCHEMICAL AND PETROGRAPHİCAL CHARACTERISTICS OF KARLIOVA HALIFAN (BINGOL) COALS

Yıl 2012, Cilt: 144 Sayı: 144, 23 - 50, 01.01.2012

Orhan Kavak , Selami Toprak

Öz

In this study, petrographic and organic geochemical characteristics of the Tertiary Karlıova-Halifancoals (Bingöl) were investigated. Determination of coal quality was based on chemical (moisture, volatile matter, fixed carbon, ash) and elemental analyses (C, H, O, S, N). The values of the huminite reflectances in organic matter-rich coal levels change between 0.368 and 0.573 %, which correspond to low maturity levels. These parameters are in good agreement with their fluorescence colors, calorific value (average original-2266, dry-3177 Kcal/kg, upper calorific value) and average Tmax (417 oC) values. The organic material in studied coals shows low-grade transformation due to low lithostatic pressure. Therefore, the petrographic characteristics and quality values ofKarlıova Halifan coals suggest classification as sub-bituminous coal – Lignite. Rock Eval analysis results point to an immature to early mature hydrocarbon generation for hydrocarbon derivatives formed by type II/III and III kerogen with average Tmax values of 417 oC. The coals mainly constitute huminites, with small amounts of inertinite and liptinite type macerals. The Karlıova Halifan coals have high contents of ash and sulfur, clay and calcites as minerals, and gelinites as individual macerals

Anahtar Kelimeler

Halifan, Bingöl Karlıova, Organic Geochemistry, Organic Petrography, Tertiary, Coal

Kaynakça

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