Geochemical consideration of some granitoids around Ojirami-Ogbo and environs, southwestern Nigeria
Five (5) granitoid samples from Ojirami-Ogbo and Environs in Akoko-Edo area of southwestern Nigeria were obtained with the aim of determining their geochemical properties using the XRF and Xrd techniques. Results from the analysis revealed the presence of SiO2 (51.41-64.84%), Al2O3 (21.37-36.25%),...
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| Format: | Article |
| Language: | English |
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Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)
2019-07-01
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| Series: | Journal of Applied Sciences and Environmental Management |
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| Online Access: | https://www.ajol.info/index.php/jasem/article/view/188276 |
| _version_ | 1797228026994360320 |
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| author | O Odokuma-Alonge P.N. Egwuatu S.E. Okunuwadje |
| author_facet | O Odokuma-Alonge P.N. Egwuatu S.E. Okunuwadje |
| author_sort | O Odokuma-Alonge |
| collection | DOAJ |
| description |
Five (5) granitoid samples from Ojirami-Ogbo and Environs in Akoko-Edo area of southwestern Nigeria were obtained with the aim of determining their geochemical properties using the XRF and Xrd techniques. Results from the analysis revealed the presence of SiO2 (51.41-64.84%), Al2O3 (21.37-36.25%), Fe2O3 (5.89-8.02%), MgO (0.98-2.11%), K2O (0.02-0.97%) and Na2O (0.04-0.08%) all in wt%. Using the Al2O3 and SiO2 saturation schemes in classifying igneous rocks, sample two, three, four and five gave Al2O3 wt% values of 33.30%, 32.00%, 23.20%, 21.37% greater than the molars proportions of (Al2O3/CaO+Na2O+K2O) with values 22.54, 30.06, 22.10 and 14.07, and are peraluminous rocks while sample one had 36.25% and 43.10, respectively and is considered to be metaluminous. The SiO2 composition of the rocks ranges from 51.41-66.40% hence reveals a mafic to intermediate composition. The main felsic minerals from XrD analysis revealed the presence of quartz, alkali and plagioclase feldspars. Using the QAP diagram, the rocks fall within the granitoidal class.
Keywords: geochemical, silica-saturation, alumina-saturation, major oxides
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| first_indexed | 2024-04-24T14:50:10Z |
| format | Article |
| id | doaj.art-4dff655108ee4c6eafa47a973a66008d |
| institution | Directory Open Access Journal |
| issn | 2659-1502 2659-1499 |
| language | English |
| last_indexed | 2024-04-24T14:50:10Z |
| publishDate | 2019-07-01 |
| publisher | Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) |
| record_format | Article |
| series | Journal of Applied Sciences and Environmental Management |
| spelling | doaj.art-4dff655108ee4c6eafa47a973a66008d2024-04-02T19:50:28ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992019-07-0123610.4314/jasem.v23i6.20Geochemical consideration of some granitoids around Ojirami-Ogbo and environs, southwestern NigeriaO Odokuma-AlongeP.N. EgwuatuS.E. Okunuwadje Five (5) granitoid samples from Ojirami-Ogbo and Environs in Akoko-Edo area of southwestern Nigeria were obtained with the aim of determining their geochemical properties using the XRF and Xrd techniques. Results from the analysis revealed the presence of SiO2 (51.41-64.84%), Al2O3 (21.37-36.25%), Fe2O3 (5.89-8.02%), MgO (0.98-2.11%), K2O (0.02-0.97%) and Na2O (0.04-0.08%) all in wt%. Using the Al2O3 and SiO2 saturation schemes in classifying igneous rocks, sample two, three, four and five gave Al2O3 wt% values of 33.30%, 32.00%, 23.20%, 21.37% greater than the molars proportions of (Al2O3/CaO+Na2O+K2O) with values 22.54, 30.06, 22.10 and 14.07, and are peraluminous rocks while sample one had 36.25% and 43.10, respectively and is considered to be metaluminous. The SiO2 composition of the rocks ranges from 51.41-66.40% hence reveals a mafic to intermediate composition. The main felsic minerals from XrD analysis revealed the presence of quartz, alkali and plagioclase feldspars. Using the QAP diagram, the rocks fall within the granitoidal class. Keywords: geochemical, silica-saturation, alumina-saturation, major oxides https://www.ajol.info/index.php/jasem/article/view/188276geochemicalsilica-saturationalumina-saturationmajor oxides |
| spellingShingle | O Odokuma-Alonge P.N. Egwuatu S.E. Okunuwadje Geochemical consideration of some granitoids around Ojirami-Ogbo and environs, southwestern Nigeria Journal of Applied Sciences and Environmental Management geochemical silica-saturation alumina-saturation major oxides |
| title | Geochemical consideration of some granitoids around Ojirami-Ogbo and environs, southwestern Nigeria |
| title_full | Geochemical consideration of some granitoids around Ojirami-Ogbo and environs, southwestern Nigeria |
| title_fullStr | Geochemical consideration of some granitoids around Ojirami-Ogbo and environs, southwestern Nigeria |
| title_full_unstemmed | Geochemical consideration of some granitoids around Ojirami-Ogbo and environs, southwestern Nigeria |
| title_short | Geochemical consideration of some granitoids around Ojirami-Ogbo and environs, southwestern Nigeria |
| title_sort | geochemical consideration of some granitoids around ojirami ogbo and environs southwestern nigeria |
| topic | geochemical silica-saturation alumina-saturation major oxides |
| url | https://www.ajol.info/index.php/jasem/article/view/188276 |
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