Seminar Paper
CHAPTER ONE
1.0Introduction Basement and crystalline basement rock are used to define the rocks below a sedimentary platform or cover, or more generally any rock below sedimentary rocks or sedimentary basins that are metamorphic or igneous in origin. In the same way the sediments and/or sedimentary rocks on top of the basement can be called a cover or sedimentary cover.
The basement complex may as known consists of various rock types including granites, granodiorites, charnockites, syenites, gneisses,migmatites, blastomylonites, marbles, quartzite’s, schist’s etc. All these rocks as expected exhibit various mineralogical compositions, textures andstructures. The basement generally refers to rocks older than the Variscan orogeny.
Geochronology is the science of determining the age of rocks, fossils, and sediments, within a certain degree of uncertainty inherent to the method used. In review of this, the geochronological study of the crystaline basement will have to deal with the time study of all this basement rocks, therefore it will anable geologist to be able to determine how old rocks that are situated in the basement complex. A variety of dating methods are used by geologists to achieve this, and schemes of classification and terminology have been proposed.The approach of using several methods is preferred for best results
Nigeria and its Environs
The Federal Republic of Nigeria, is a federal constitutional republic and its Federal Capital Territory is situated in Abuja. The country is located in West Africa and shares land borders with the Republic of Benin in the west, Chad and Cameroon in the east, and Niger in the north. The three largest and most influential ethnic groups in Nigeria are the Hausa, Igbo and Yoruba. In terms of religion Nigeria is roughly split into half and half between Muslims in the North and Christians in the South,a very small minority practice traditional religion
1.1.1Location (Coordinates)
Nigeria lies very close to
1.0Introduction Basement and crystalline basement rock are used to define the rocks below a sedimentary platform or cover, or more generally any rock below sedimentary rocks or sedimentary basins that are metamorphic or igneous in origin. In the same way the sediments and/or sedimentary rocks on top of the basement can be called a cover or sedimentary cover.
The basement complex may as known consists of various rock types including granites, granodiorites, charnockites, syenites, gneisses,migmatites, blastomylonites, marbles, quartzite’s, schist’s etc. All these rocks as expected exhibit various mineralogical compositions, textures andstructures. The basement generally refers to rocks older than the Variscan orogeny.
Geochronology is the science of determining the age of rocks, fossils, and sediments, within a certain degree of uncertainty inherent to the method used. In review of this, the geochronological study of the crystaline basement will have to deal with the time study of all this basement rocks, therefore it will anable geologist to be able to determine how old rocks that are situated in the basement complex. A variety of dating methods are used by geologists to achieve this, and schemes of classification and terminology have been proposed.The approach of using several methods is preferred for best results
Nigeria and its Environs
The Federal Republic of Nigeria, is a federal constitutional republic and its Federal Capital Territory is situated in Abuja. The country is located in West Africa and shares land borders with the Republic of Benin in the west, Chad and Cameroon in the east, and Niger in the north. The three largest and most influential ethnic groups in Nigeria are the Hausa, Igbo and Yoruba. In terms of religion Nigeria is roughly split into half and half between Muslims in the North and Christians in the South,a very small minority practice traditional religion
1.1.1Location (Coordinates)
Nigeria lies very close to