The Occurrence of Lacustrine Depositional Setting in the Mamu Formation, Anambra Basin, Nigeria
| Autor: | Oluwadayo O. Sonibare, Olusegun Ekundayo, T. A. Adedosu, Jincai Tuo |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Total organic carbon Renewable Energy Sustainability and the Environment business.industry Energy Engineering and Power Technology chemistry.chemical_element Mineralogy respiratory tract diseases Sedimentary depositional environment Fuel Technology Nuclear Energy and Engineering chemistry Elemental analysis Isotopes of carbon Environmental chemistry Organic matter Coal business Carbon Oil shale |
| Zdroj: | Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 36:374-382 |
| ISSN: | 1556-7230 1556-7036 |
| Popis: | Coal and carbonaceous shale samples were collected from Okaba and Onyeama in Mamu formation, Anambra basin, Nigeria. This study evaluated the organic materials and depositional environment of coal deposits of Anambra basin based on their elemental (C, H, O, N, and S) constituents and carbon isotopic compositions of biomarkers (n-alkanes). Elemental analysis in the samples was studied using a Carlo-Erba 1108 CHNS-O analyzer. Total organic carbon and total sulphur were measured by LECO analyses. The carbon isotope analysis of individual n-alkanes in the aliphatic fraction was performed using gas chromatography-combustion-isotope ratio mass spectrometer. The majority of the samples were characterized by low sulphur contents (>0.5 wt%). The low sulphur contents indicate coal derived from non-marine organic matter. The total organic carbon/total sulphur ratios range from 12.9 to 234.7 in the samples indicating non-marine coal. The total organic carbon/total nitrogen ratios also range from 20.49 to 31.51 in the... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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