Hydrocarbon generation potential and Miocene–Pliocene paleoenvironments of the Kangal Basin (Central Anatolia, Turkey)

Erik, Nazan Yalçın

doi:10.1016/j.jseaes.2011.06.013

Cited by 24 publications

(2 citation statements)

References 53 publications

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“…These partings are mainly composed of gastropod-bearing calcareous units and tuffaceous/altered tuff layers. The gathered gastropod and ostracod fauna and palynoflora from lower and upper coal seams show that in the Kangal paleomire freshwater conditions dominated during the Early Pliocene (Narin and Kavusan, 1993;Karayiğit et al, 2001b;Yalçin Erik, 2011). The coal-bearing sequence is overlain by Early Pliocene lacustrine carbonates (Bıcır Formation) and Plio-Quaternary volcanics.…”

Section: Geological Settingmentioning

confidence: 98%

“…The annual coal consumption is around 7 Mt, consumed by three units 1 . The Kangal coal deposit was the subject of several petrographic, geological, and mining utilization studies (Narin and Kavuşan, 1993;Basarir and Karpuz, 2004;Toprak and Yalcin Erik, 2011;Yalçin Erik, 2011;Koçaslan et al, 2017); however, a limited number of studies were focused on geochemical compositions of feed coals and radionuclides of feed coals and combustion residues (Karayigit et al, 2000(Karayigit et al, , 2001bKalender and Karamazı, 2017;Turhan et al, 2018). The current study focuses on the mineralogical and geochemical characteristics of FCs and combustion residues (FA and BA) from Unit-I and evaluates factors that control elemental enrichment of FC, FA, and BA.…”

Section: Introductionmentioning

confidence: 99%

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Mineralogy and geochemistry of feed coals and combustion residues of the Kangal power plant (Sivas, Turkey)

Karayi̇ǧi̇t¹,

Oskay²,

Gayer³

2019

Turkish J Earth Sci

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This study focuses on mineralogical and geochemical compositions of feed coal (FC) and combustion residues, namely fly ash (FA) and bottom ash (BA) samples, obtained from the Kangal coal-fired power plant in central Turkey. The X-ray powder diffraction data indicate that carbonate and clay minerals are dominant phases in the FC samples. In the FA samples, quartz, hematite, anhydrite, lime, and feldspar are generally dominant and abundant phases, whereas calcite, ettringite, and portlandite are generally more abundant in the BA samples. The elements Mo, Cs, and U are significantly enriched in the studied FC, FA, and BA samples. The statistical analysis and SEM-EDX data show that Ca, Ti, and the vast majority of trace elements are inorganically affiliated, and only Tl and U have probable organic affinity in the FC. In addition, the redox conditions in the paleomires presumably resulting in Mo and U enrichment in FC, whereas their enrichment in FA and BA is most likely related to retention by CaO and Ca-sulfate. The Cs enrichment in FA is due to retention by glass. The elements in the FA and BA are distinguished into four groups according to their volatility during combustion. The elements As, Mo, Cd, Tl, and U (Group I) are the most volatile elements during combustion and condensation in the FA. The elements Li, Zn, Ga, Rb, Nb, Cs, Ba, La, and Pb (Group IV) did not become more volatile or less volatile during combustion and are located in BA. Nevertheless, Zn and Pb in the BA seem to be related to the presence of unaffected pyrite and sphalerite, and are due to low combustion efficiency of the boiler during the sampling period. Overall, enriched elements and minerals in FA and BA suggest that their disposal should be undertaken with caution.

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Section: Geological Settingmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Mineralogy and geochemistry of feed coals and combustion residues of the Kangal power plant (Sivas, Turkey)

Karayi̇ǧi̇t¹,

Oskay²,

Gayer³

2019

Turkish J Earth Sci

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Evaluation of Singrauli Coals for Sustainable Energy Utilisation: Insight From Geochemical and Petrographic Perspectives

Gopinathan,

Mahato,

Kumar

et al. 2024

Geological Journal

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The study investigated 50 Permian coals from the Singrauli Coalfields in the Son Valley Basin, India, using advanced petro‐geochemical techniques to assess their source rock properties, energy and utilisation potential and to reconstruct the paleodepositional environment. Petrological analysis indicated vitrinite reflectance values between 0.39% and 0.49%, classifying the Singrauli coals as sub‐bituminous to high volatile bituminous rank and indicating a thermally immature state. The results of geochemical analysis (volatile matter: 36.8%–46.5% and Tmax: 420°C–425°C) further support the above contention. High carbon content (average 77.89%), low sulphur content (average 0.46%) and varying nitrogen and oxygen levels in studied coal enhance its environmental suitability. The hydrogen index (HI: 163–279 mg HC/g TOC) values suggest a predominance of type‐III kerogen with mixed type‐II–III kerogen, further supported by petrographic data. Moreover, geochemical and petrographic data suggested the suitability of Singrauli coals for gasification. The high total organic carbon (TOC ≥ 38 wt%) indicated admirable potential as a source rock for hydrocarbon generation, particularly within the gas‐source rock zone, highlighting their suitability for energy production. Petrographic indices indicated a wet forest swamp origin with a telmatic source and bog region under ombrotrophic to mesotrophic hydrological circumstances. The association of macerals and total sulphur content further supported the conclusion of a freshwater environment during peat deposition.

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Assessment of Thermal Maturity, Source Rock Potential and Paleodepositional Environment of the Paleogene Lignites in Barsingsar, Bikaner–Nagaur Basin, Western Rajasthan, India

Singh

Kumar

2019

Nat Resour Res

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Hydrocarbon generation potential and Miocene–Pliocene paleoenvironments of the Kangal Basin (Central Anatolia, Turkey)

Cited by 24 publications

References 53 publications

Mineralogy and geochemistry of feed coals and combustion residues of the Kangal power plant (Sivas, Turkey)

Mineralogy and geochemistry of feed coals and combustion residues of the Kangal power plant (Sivas, Turkey)

Evaluation of Singrauli Coals for Sustainable Energy Utilisation: Insight From Geochemical and Petrographic Perspectives

Assessment of Thermal Maturity, Source Rock Potential and Paleodepositional Environment of the Paleogene Lignites in Barsingsar, Bikaner–Nagaur Basin, Western Rajasthan, India

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