ORGANIC GEOCHEMICAL CHARACTERISTICS AND SOURCE ROCK POTENTIAL OF UPPER PLIOCENE SHALES IN THE AKCALAR LIGNITE BASIN, TURKEY

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dc.contributor.authorMohammednoor, Mosab
dc.contributor.authorOrhan, Hukmu
dc.date.accessioned2020-03-26T19:42:14Z
dc.date.available2020-03-26T19:42:14Z
dc.date.issued2017
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn this study, organic geochemical characteristics of Upper Pliocene bituminous shale beds in the Akcalar lignite basin, southwest of Konya, Turkey, were investigated using total organic carbon (TOC) and pyrolysis analyses. Additionally, the palaeontological study was carried out to assess the depositional environment of the area. The TOC contents of the studied samples are mostly high, varying between 0.4 and 50 wt%, with an average of 21.35 wt%. The low Hydrogen Index (HI = 17-395 mg HC/g TOC) and S-2/S-3 ratio (0.15-11.4) values indicate that kerogen of the vast majority of the samples is of Type III and only a few samples contain Type II and IV kerogens. Consequently, most of the organic matter (OM) tends to generate gas, even though a small portion of it exhibits a tendency to generate gas-oil mixture. The studied bituminous rock samples characterized by low Tmax (408-511 degrees C) and Production Index (PI = 0.08-0.36) values show that the degree of thermal maturity is in the range of immature to early mature. S-1, S-2 and Potential Yield (PY) values range from 0.04 to 16.16 mg HC/g rock, 0.07 to 115.56 mg HC/g rock and 110 to 131720 ppm, respectively. These values imply, in terms of hydrocarbon generation potential, that the studied samples have a source rock potential from poor to excellent. Additionally, the S1 hydrocarbon type values indicate no external contribution of migrated hydrocarbons to the bituminous rocks of the studied area. The lacustrine sediments including coal and bituminous shale beds in the Akcalar lignite basin were deposited in a fresh water lacustrine environment with periodically changing depositional conditions from deep to shallow and to stagnant swamp.en_US
dc.description.sponsorshipSelcuk University Research FundSelcuk University [138224001021]en_US
dc.description.sponsorshipThe authors are grateful to the Selcuk University Research Fund for financial (Project No. 138224001021) and material support. We thank Dr. Sevinc Kapan Yesilyurt of Canakkale 18 Mart University who carried out the palaeontological determination. Special thanks go to Zeki Memisoglu, executive director of Coal Mining Sites of Eti Aluminyum A.S, Turkey, for logistic support. The critical comments on an earlier version of the manuscript by reviewers are greatly appreciated. This article has been produced on the basis of the Master Thesis of Mosab Mohammednoor supervised by Hukmu Orhan.en_US
dc.identifier.doi10.3176/oil.2017.4.01en_US
dc.identifier.endpage311en_US
dc.identifier.issn0208-189Xen_US
dc.identifier.issn1736-7492en_US
dc.identifier.issue4en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage295en_US
dc.identifier.urihttps://dx.doi.org/10.3176/oil.2017.4.01
dc.identifier.urihttps://hdl.handle.net/20.500.12395/35354
dc.identifier.volume34en_US
dc.identifier.wosWOS:000419072600001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherESTONIAN ACADEMY PUBLISHERSen_US
dc.relation.ispartofOIL SHALEen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectAkcalar lignite basinen_US
dc.subjecttotal organic carbonen_US
dc.subjectoil shale pyrolysisen_US
dc.subjectmaturity degreeen_US
dc.titleORGANIC GEOCHEMICAL CHARACTERISTICS AND SOURCE ROCK POTENTIAL OF UPPER PLIOCENE SHALES IN THE AKCALAR LIGNITE BASIN, TURKEYen_US
dc.typeArticleen_US

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