ISSN 1119-4618
 

Original Research 


GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.

Lekmang, I.C., Daspan, R.I., Dibal, H.U., Diyelmak, V. B., Daku, S.S., Goyit, M. P., Oloruyomi, A., Ajol, F.A., Chup, A. S., and Adamu, M. S..

Abstract
The Fobur gabbros are situated in Jos East Local Government Area of Jos Plateau, Central Nigeria. They occur as minor intrusions within the migmatites, Jos biotite granites and Neil biotite granite. They are distinguished into quartz-olivine gabbro and normal gabbro. Mineralogically, they are composed of essentially plagioclases majorly, hornblende, with subordinate amounts of biotite, olivine, clinopyroxenes and titanaugite with little quartz, iron oxides and apatite occurring as accessory minerals. A total of 10 rock samples were analyzed for major, trace and rare earth elements using ICPMS. Geochemical features indicate that these gabbroic rocks are tholeiitic with weak alkaline affiliation and were formed within a continental tectonic setting (within plates). On the TAS classification diagrams, the rocks expressed variations in their composition ranging from gabbro gabbroicdiorite syenodiorite. Major oxide trends show that they are product of fractional crystallization with partial melting playing an important role in their petrogenesis. Their trace element geochemistry revealed enrichment in incompatible elements (LILE) relative to High Field Strength Elements (HFSE) as displayed in EMORB, MORB and OIB normalized spiderdiagrams suggesting that the magma which gave rise to the gabbros most likely came from the astenospheric mantle source rich in incompatible elements.

Key words: Fobur, crystal fractionation, gabbros, monzodiorites-syenodiorite, quartz olivine gabbro.


 
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How to Cite this Article
Pubmed Style

, I.C. , Daspan , R.I. , Dibal , H.U. , Diyelmak , B. V, Daku , S.S. , Goyit , P. M, Oloruyomi , A. , Ajol , F.A. , Chup , S. A, Adamu a, S. M. GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.. JPAS. 2021; 21(1): 206-217. doi:10.5455/sf.74093


Web Style

, I.C. , Daspan , R.I. , Dibal , H.U. , Diyelmak , B. V, Daku , S.S. , Goyit , P. M, Oloruyomi , A. , Ajol , F.A. , Chup , S. A, Adamu a, S. M. GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.. http://www.atbuscienceforum.com/?mno=74093 [Access: May 24, 2021]. doi:10.5455/sf.74093


AMA (American Medical Association) Style

, I.C. , Daspan , R.I. , Dibal , H.U. , Diyelmak , B. V, Daku , S.S. , Goyit , P. M, Oloruyomi , A. , Ajol , F.A. , Chup , S. A, Adamu a, S. M. GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.. JPAS. 2021; 21(1): 206-217. doi:10.5455/sf.74093



Vancouver/ICMJE Style

, I.C. , Daspan , R.I. , Dibal , H.U. , Diyelmak , B. V, Daku , S.S. , Goyit , P. M, Oloruyomi , A. , Ajol , F.A. , Chup , S. A, Adamu a, S. M. GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.. JPAS. (2021), [cited May 24, 2021]; 21(1): 206-217. doi:10.5455/sf.74093



Harvard Style

, I.C., ., Daspan, ., R.I., ., Dibal, ., H.U., ., Diyelmak, ., B., . V., Daku, ., S.S., ., Goyit, ., P., . M., Oloruyomi, ., A., ., Ajol, ., F.A., ., Chup, ., S., . A., Adamu, . a. & S., . M. (2021) GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.. JPAS, 21 (1), 206-217. doi:10.5455/sf.74093



Turabian Style

, I.C., Daspan, R.I., Dibal, H.U., Diyelmak, V. B., Daku, S.S., Goyit, M. P., Oloruyomi, A., Ajol, F.A., Chup, A. S., and Adamu, and M. S.. 2021. GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.. Science Forum (Journal of Pure and Applied Sciences), 21 (1), 206-217. doi:10.5455/sf.74093



Chicago Style

, I.C., Daspan, R.I., Dibal, H.U., Diyelmak, V. B., Daku, S.S., Goyit, M. P., Oloruyomi, A., Ajol, F.A., Chup, A. S., and Adamu, and M. S.. "GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.." Science Forum (Journal of Pure and Applied Sciences) 21 (2021), 206-217. doi:10.5455/sf.74093



MLA (The Modern Language Association) Style

, I.C., Daspan, R.I., Dibal, H.U., Diyelmak, V. B., Daku, S.S., Goyit, M. P., Oloruyomi, A., Ajol, F.A., Chup, A. S., and Adamu, and M. S.. "GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.." Science Forum (Journal of Pure and Applied Sciences) 21.1 (2021), 206-217. Print. doi:10.5455/sf.74093



APA (American Psychological Association) Style

, I.C., ., Daspan, ., R.I., ., Dibal, ., H.U., ., Diyelmak, ., B., . V., Daku, ., S.S., ., Goyit, ., P., . M., Oloruyomi, ., A., ., Ajol, ., F.A., ., Chup, ., S., . A., Adamu, . a. & S., . M. (2021) GEOCHEMICAL CHARACTERISTICS OF THE GABBROIC INTRUSIVE BODIES OF FOBUR, EAST OF JOS PLATEAU, CENTRAL NIGERIA.. Science Forum (Journal of Pure and Applied Sciences), 21 (1), 206-217. doi:10.5455/sf.74093