PETROGENETIC STUDY OF THE TALC MINERALIZATION IN KAGARA AREA (SHEET 142 SE AND PART OF SHEET 142 SW) NORTH CENTRAL, NIGERIA

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dc.contributor.authorADEOYE, AKINTOLA OJO
dc.date.accessioned2018-09-04T08:20:30Z
dc.date.available2018-09-04T08:20:30Z
dc.date.issued2017-05
dc.descriptionA THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES, AHMADU BELLO UNIVERSITY, ZARIA, IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTER OF SCIENCE DEGREE IN GEOLOGY (MINERAL EXPLORATION) DEPARTMENT OF GEOLOGY FACULTY OF PHYSICAL SCIENCE AHMADU BELLO UNIVERSITY, ZARIA, NIGERIAen_US
dc.description.abstractThe study area is part of the Kushaka schist belt of the Northern Nigeria Basement Complex. It lies within latitudes 10° 00′N and 10°15′N and longitudes 6°10′E and 6°30′E, Sheet 142 SE and part of Sheet 142 SW. The major rock units in the area are migmatitic gneiss, banded gneiss, granitic gneiss, meta-arkosic rock, amphibolite, talcose rock, phyllite, granodiorite, porphyritic granite, fine-medium grained granite, and pegmatite. Petrographical studies revealed that quartz, microcline, plagioclase and biotite constitute the major minerals present in the migmatitic gneiss, porphyritic granite, fine-medium grained granite, meta- arkosic rocks and pegmatite with epidote as the dominant accessory mineral. The talcose rock contains in addition to talc, appreciable amount of chlorite, magnesite, anthophyillte with magnesite and quartz forming the accessory minerals. X-Ray Diffraction of the talcose rock also revealed talc as major mineral. Other constituent minerals of the talcose rock are chlorite, tremolite, actonilite, magnesite, and magnetite while spinel and quartz are the accessory minerals. Geochemical characterization of the talcose rock shows SiO2 (28.63-34.99) wt %, MgO (29.21- 35.13) wt %, Fe2O3 (6.36 - 13.20) wt %, and variable proportion of CaO (0.02-0.18) wt % and Al2O3 (0.58-13.20) wt % are characteristic of the rock. The talcose rock also shows negative Eu anomaly and therefore paucity of plagioclase. High Ni (210-1850 ppm), Co (82-91 ppm), and Cr (170-1930 ppm) values indicate that the talcose rock was derived from an ultramafic protolith which has undergone moderate degree of metamorphism. KEYWORD: Talc, petrogenesis, mineralization, protoliths, Kagara, North central Nigeria.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/10208
dc.language.isoenen_US
dc.subjectPETROGENETIC STUDY,en_US
dc.subjectTALC MINERALIZATION,en_US
dc.subjectKAGARA AREA,en_US
dc.subjectNORTH CENTRAL,en_US
dc.subjectNIGERIAen_US
dc.titlePETROGENETIC STUDY OF THE TALC MINERALIZATION IN KAGARA AREA (SHEET 142 SE AND PART OF SHEET 142 SW) NORTH CENTRAL, NIGERIAen_US
dc.typeThesisen_US
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