Geochemistry of Weathered Profiles over Syenite and Younger Granite in Pankshin Area, North Central Nigeria

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dc.contributor.authorAdewole John Adeola
dc.contributor.authorAnthony Temidayo Bolarinwa
dc.date.accessioned2025-06-03T12:13:58Z
dc.date.available2025-06-03T12:13:58Z
dc.date.issued2017
dc.description.abstractMetallic ores of economic values often occur within profiles above basement rocks in tropical regions due to weathering and secondary enrichment. This study is carried out to determine the geochemistry and appraise the potential for metallic ore enrichment in the weathered profiles over Syenite and Younger Granite in Pankshin area. Top-soil, laterite and rock samples are collected from two lateritic profiles above Syenite and Younger Granite. The syenite rock is composed of alkali feldspars (perthite), nepheline, clinopyroxene, with minor amount of orthopyroxene, hornblende, plagioclase and few quartz grains, indicating oversaturation. The Younger Granite contains plagioclase feldspars, microcline, quartz, biotite, hornblende and reibeckite. Quartz (61.0%), kaolinite (32.0%) and microcline (7.0%) are the dominant minerals in the X-ray diffraction (XRD) of the decomposed rocks. The Chemical Index of Alteration (CIA) of both rocks is generally >90. There are enhancements of V, Sc, Zr and TiO2 in the Syenite profile and Fe2O3, Zr, V and TiO2 in the Younger Granite profile as reflected in the Accumulation Factor (AF), loss and gain of elements (K), though the values were too low for ore mineralization except for iron and titanium in the Younger Granite profile.
dc.identifier.citationAdewole, J. A. and Anthony, T. B. (2017). Geochemistry of Weathered Profiles over Syenite and Younger Granite in Pankshin Area, North Central Nigeria. Canadian Center of Science and Education. 6(1); 63-78.
dc.identifier.issn1927-0550
dc.identifier.urihttps://repository.crawforduniversity.edu.ng/handle/123456789/235
dc.language.isoen
dc.publisherCanadian Center of Science and Education
dc.relation.ispartofseries6; 1
dc.titleGeochemistry of Weathered Profiles over Syenite and Younger Granite in Pankshin Area, North Central Nigeria
dc.typeArticle
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