Paleoenvironmental significance of biomarker and stable isotope (2H, 13C, 15N, 18O, and 34S) investigations on a Pliocene coal-bearing sequence (Denizli Basin, southwestern Turkey)

Koralay, Tamer

doi:10.1016/j.jafrearsci.2020.103948

Cited by 2 publications

(1 citation statement)

References 49 publications

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“…Obtained CPI value > 1, which is 7.82 (Table 2) in this study, indicates the sample of immature coal n-alkane has not experienced thermal degradation. This result is also supported by several previous studies which gave CPI values > 1 as an indicator of immature coal [21][22][23][24] and confirmed the terrestrial origin of the organic matter [36].…”

Section: N-alkane Biomarkerssupporting

confidence: 89%

Origin and Maturity of Biomarker Aliphatic Hydrocarbon in Wondama Coal Indonesia

et al. 2020

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Organic geochemical characterization of Wondama coal samples from the Lengguru Folding Belt has been carried out through the study of its aliphatic hydrocarbon biomarkers. This study is to determine the origin, depositional environment and maturity of coal which is useful for determining the use of coal as an energy source. Aliphatic hydrocarbon biomarkers were identified by using gas chromatography-mass spectroscopy methods which showed the presence of n-alkane homologs (n-C15 - n-C33), which was dominated by n-C31. This indicates that the organic material originates from Angiosperms of terrestrial higher plants. The ratio of pristane to phytane (Pr/Ph) with value of 3.74 indicates that the Wondama coal is buried in an oxic depositional environment. The Carbon Preference Index (CPI) value of 7.82 and the C31αβS/(S + R) ratio of 0.27 indicate low maturity of Wondama coal and is classified into a sub-bituminous coal ranks.

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Section: N-alkane Biomarkerssupporting

confidence: 89%

Origin and Maturity of Biomarker Aliphatic Hydrocarbon in Wondama Coal Indonesia

et al. 2020

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Geochemical properties and heavy metal contents of carbonaceous rocks in the Pliocene siliciclastic rock sequence from southeastern Denizli-Turkey

Koralay

2022

Open Geosciences

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Pliocene-aged carbonaceous rocks of varying thicknesses, alternating with siliciclastic and carbonate rock units, are located on the northern border of the Çameli-Acıpayam basin (in southwestern Turkey), which is filled with thick Neogene sediments. Organic and inorganic geochemical properties of carbonaceous rocks were examined to evaluate their hydrocarbon production potential and paleo-depositional conditions (provenance, paleoclimate, paleosalinity, paleoredox, weathering, heavy metal contents, etc.). Based on organic geochemical analysis, carbonaceous rocks show good to excellent source rock potential and have gas production potential. Organic substances are mostly of allochthonous origin, and their thermal maturity degree is quite low. Carbonaceous rocks have a high amount of inorganic substance (minerals) composed of quartz, clay + mica minerals (mostly illite and a lesser amount of smectite, chlorite, and kaolinite), feldspar, and opaque minerals (pyrite and ilmenite). Although carbonaceous rocks have similar major oxide and trace element concentrations, they show clear differences in terms of Fe2O3, MgO, and some heavy metals (such as Ni, Cr, Co, V, and Sc). The major oxide, trace element concentrations, various element ratios of carbonaceous rocks bear the characteristics of mafic/ultramafic magmatic rocks formed on the active continental margin. In addition, carbonaceous rocks were precipitated in a brackish water environment under oxic conditions. The sediments, which were rapidly stored without recycling in the deposition environment where hot/humid climatic conditions are effective, did not undergo intense decomposition in the source area.

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Paleoenvironmental significance of biomarker and stable isotope (2H, 13C, 15N, 18O, and 34S) investigations on a Pliocene coal-bearing sequence (Denizli Basin, southwestern Turkey)

Cited by 2 publications

References 49 publications

Origin and Maturity of Biomarker Aliphatic Hydrocarbon in Wondama Coal Indonesia

Origin and Maturity of Biomarker Aliphatic Hydrocarbon in Wondama Coal Indonesia

Geochemical properties and heavy metal contents of carbonaceous rocks in the Pliocene siliciclastic rock sequence from southeastern Denizli-Turkey

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