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Gölbaşı Harmanlı (Adıyaman) Kömürlerinin Organik Jeokimyasal ve Petrografik Özellikleri

Organic Geochemical and Petrographic Properties of Gölbaşı Harmanlı (Adıyaman) Coals

Journal Name:

  • Jeoloji Mühendisliği Dergisi

Publication Year:

  • 2011

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
This study was carried out in Gölbaşı-Harmanlı (Adıyaman) region where coal basin exists. Chemical, petrographical and organic geochemical analyses of the Tertiary aged coals were taken into consideration. Coal quality investigation along with proximate (moisture, volatile matter, fixed carbon,ash) and elemental analyses (C, H, O, S, N) were performed. The huminite reflectances of organically abundant matter and coal levels were found to be between 0.28% and 0.516% which refer to low maturity levels. This parameter is compatible with fluorescence colors, calorific value (average original 2736 - dry 3727 Kcal/kg) and average Tmax (422 oC). Organic matters of the investigated coals exhibit a low grade transformation, due to a low lithostatic pressure on them. In GC analyses, n-alkanes with low carbon numbers as n-C17, n-C27, n-C30 and n-C3 and CS2 as well as benzen were detected. Triterpanoid component was determined with GC-MS data and tends to imply high ground continental vegetation, but gammacera values to hypersaline depositional conditions. Gölbaşı coals show sub-bituminous and lignite coalification ranks. Rock Eval analysis results show TYPE II/III and III kerogen, with average Tmax value is 422 oC, and corresponding to the immature and premature rank for hydrocarbon generation. The coals are characterised with their abundance of huminite maceral group with small amount of inertinite and liptinite macerals. Mineral matters of the Gölbaşı coals are calcite, clays, and sulfur bearing minerals.
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Abstract (Original Language): 
Bu çalışma, Adıyaman–Gölbaşı–Harmanlı Mevkii’nde yer alan kömür oluşumunun olduğu havzada yapılmıştır. Tersiyer yaşlı kömürlerin kimyasal ve petrografik analizleri yapılmış, organik jeokimyasal özellikleri değerlendirilmiştir. Kömür kalite değerlendirmesi, kimyasal (nem, uçucu madde, sabit karbon, kül) ve elementer analizler (C, H, O, S, N) yapılarak ortaya konmuştur. Hüminit Ro yansıtma değerleri organik maddece zengin ve kömürlü düzeylerde %0.28 ve %0.516 arasında değişmekte olup, düşük olgunluk düzeyine karşılık gelmektedir. Bu parametre floresans renkleri, kalorifik değer (ortalama orijinal 2736, kuru 3727 Kcal/kg) ve ortalama Tmax (422 Co) ile uyumludur. İncelenen kömürlerde organik maddeler düşük litostatik basınç nedeniyle düşük dereceli dönüşüm gösterir. GC analizinde, n-C17, n-C27, n-C30 ve n-C3 gibi düşük karbon sayılı n-alkanlar ile CS2 ve benzen belirlenmiştir. Örneklerin GC-MS verileri triterpanoid bileşenleri mevcut olduğu saptanmış ve bunların yüksek karasal bitki bileşimlerine, gammacceran değerlerinin ise hipersalin çökelim koşullarına işaret ettiği sanılmaktadır. Organik petrografik analizlere ve kimyasal analiz verilerine bağlı olarak, Gölbaşı kömürlerinin düşük olgunlaşma derecesi gösterdikleri ve alt-bitümlü kömür - linyit kömürleşme derecelerine sahip olduğu belirlenmiştir. Rock-Eval analiz sonuçları TİP II/III karışımı ve TİP III kerojeni, ortalama 422 Co Tmax değeri hidrokarbon türümü için olgunlaşmamış ve erken olgun düzeyi ifade eder. Kömürler baskın olarak hüminit maserallerinden meydana gelmekte, az miktarlarda da inertinit ve liptinit maseralleri içermektedirler. Gölbaşı kömürleri egemen olarak gelinit olmak üzere yüksek hüminit içerikleri ile karakteristiktir. Mineral maddeleri ise başlıca kalsit, killer ve sülfürlü minerallerdir.
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  • Turkish

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