High‐pressure (HP) granulite facies rocks are associated with eclogites in the Pan‐African Dahomeyide orogen, West Africa. The HP‐granulite and eclogite facies mineral assemblages occur in mafic gneisses within the suture zone exposed in …

The Basement Complex rocks consist mostly of igneous and metamorphic rocks with relatively shallow weathered mantle that permits very limited groundwater content. On the other hand, the Chad ... River Basins of Northern Nigeria. Figure 2. The Geology of Kano Region. Figure 1. River Basins of Northern Nigeria. Figure 2. The Geology of Kano Region.

Iron ore formation in northern nigeria basement rocks Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Iron ore formation in northern nigeria basement rocks, quarry, aggregate, and different kinds of minerals.

May 13, 2020· Surging death tolls in northern Nigeria have sparked fears that coronavirus is spreading out, combining with established diseases to pose a lethal threat in a region where medical care is poor. In the past month, the city of Kano, the most populous city in the north of the country, has witnessed hundreds of deaths, particularly among the elderly.

The determination of the mineralogical composition of rocks that underlie Okom-Ita area, in Oban Massif became necessary for the interpretation of the petrogenesis and protoliths of rocks in the area. Twelve representative rock samples were selected for thin section petrography and bulk rock geochemical analysis. The results reveal that the dominant intrusive rocks in Okom-Ita …

Akwanga NW, Plateau State, Nigeria is underlain by pelitic to semipelitic schists which locally grade up to the sillimanite zone of regional metamorphism. Other rock types include migmatitic gneisses, small metaquartzitic bodies, augen-gneiss, granite-gneiss, granites, pegmatites and delerites. The dominant trends of linear and planar structures are largely N-S.

sibly the oldest rocks in the country, older than a granite gneiss that yielded a Rb-Sr whole-rock iso-chron age of Ma (Grant 1970). Ajibade2190 30 (1988) distinguished the ancient migmatites in northern Nigeria from the Pan-African migmatites by their complex polyphase deformation and my-lonitization. Possibly because of their mixed and

Keffi in Northern Nigeria and its environs is situated at the southern margin of the North-Central Basement Complex of Nigeria. This area according to Ugwuonah and Obiora (2011) is underlain by typical basement rock units including migmatitic gneisses, porphyroblastic/augen gneisses, schists, older granites and pegmatites etc.

facies rocks. 14Finally, Ferre and Caby stated that the metamorphic rocks of Northern Nigeria are consist mainly of monotonous granite–high-grade gneisses and migmatites cut by large Pan-African monzo-granite plutons. III. Materials and Methods For the purpose of this study, topographic map was used to conduct the desk study from which

The Basement Complex of Nigeria is made up of crystalline (igneous and metamorphic) rocks which are sometimes referred to as hard rocks. The Nigeria basement is part of pan-African mobile belt and it is located between Congo and West African cratons. ... The Geology of the Precambrian to Lower Paleozoic rocks of Northern Nigeria, a review, in ...

An area of approximately 12,000 sq km of Precambrian to lower Paleozoic rocks around Zaria in northern Nigeria has recently been mapped for the first time. Results from this survey have been combined with limited data from adjacent areas to determine the nature of the Pan-African event in this part of Nigeria.

Geology of Nigeria. The geology of Nigeria formed beginning in the Archean and Proterozoic eons of the Precambrian. The country forms the Nigerian Province and more than half of its surface is igneous and metamorphic crystalline basement rock from the Precambrian. Between 2.9 billion and 500 million years ago, Nigeria was affected by three ...

Mar 16, 2020· Kufena Hills is located in Zaria, Kaduna State, northern Nigeria. Kufena hills is made up of metamorphic rocks which form the base material at the core of the earth's major continental masses. The landscape's diverse ecosystem, flora and fauna and various landforms make the hills and its environs outstanding.

1998). Similar granitic rocks have also been studied in various parts of the Nigerian basement complex- northern Nigeria (Olarewaju & Rahaman, 1982), Jebba area (Okonkwo & Winchester, 2004), Obudu Plateau, southeastern Nigeria (Ukwang & Ekwueme, 2009), Kabba-Lokoja area (Ezepue & Odigi, 1993), among others.

the Basement Complex rock aquifers in Zamfara State, Northern Nigeria. The study submitted that groundwater in the Basement Complex rocks of the State can mainly be tapped from fractures and joints and within the intergrannular pores of fine to coarse sand or gravel in the sedimentary areas. The study concluded by emphasizing that

High‐pressure (HP) granulite facies rocks are associated with eclogites in the Pan‐African Dahomeyide orogen, West Africa. The HP‐granulite and eclogite facies mineral assemblages occur in mafic gneisses within the suture zone exposed in southeastern Ghana and the adjoining part of Togo. Thermobarometric calculations and phase equilibria considerations indicate that …

metamorphic rocks and represent the end product of the magmatic stage in the evolution of granitic melt. The pegmatite at Iri Village is the first mineralized pegmatite to be found in northern Nigeria and one of the few mineralized pegmatite fields in Nigeria.6 Other pegmatite fields are at Elbe, Ijero and Jema'a.

INTRODUCTION. Charnockitic rocks generally have diverse origins, spanning a range of metamorphic and igneous derivations (Kilpatrick and Ellis, 1992) which implies that igneous or metamorphic fabric can be exhibited.In Nigeria, charnockitic rocks constitute one of the major petrologic units of the precambrian basement complex (Olarewaju, 2006).The charnockitic …

The Kwandonkaya Complex forms one of the most prominent and typical ring structures in the Centre of Jos, Plateau State, Nigeria. Lithologically, it is composed of amphibole and biotite granites emplaced within Archean basement gneisses and migmatites. The chemical and mineralogical characteristics of this complex suggest that it was derived from crustal source …

Jan 01, 2007· The metamorphic rocks of northern Nigeria consist mainly of monotonous granite-high-grade gneisses and migmatites cut by large Pan-African monzogranite plutons (Fig. 1). The western domain (Kaduna area) is floored by Archaean tonalite-trondhjemite-granodiorite-type gneisses of early Archaean age (Dada et al., 1993; Bruguier et al., 1994), while ...

Historically, the rock was used as a defensive retreat by the Gbagyi people against invading neighbouring tribes during intertribal warring. It is 3,691 feet in height which makes it talled than Aso Rock and Olumo Rock put together. Wase Rock. Located in Plateau State, Wase Rock is one of the few volcanic rocks in Nigeria.

metamorphic and plutonic rocks which are represented by migmatites, granitic gneisses and pre, syn and post-tectonic rocks granites emplaced on the gneisses and schists [16]. The study area happens to be part of the Eastern Nigeria's terrain which according to [7] stretches from the Cameroon line to the area between Kaduna and Jos.

The Oldest Rocks in West Africa: SHRIMP Zircon Age for Early Archean Migmatitic Orthogneiss at Kaduna, Northern Nigeria May 2001 The Journal of Geology 109(3):399-406

Jan 13, 2019· Major Rock types in Highlands. North central plateau, western highlands, Mandara Mountains, Shebsh, Alantika, Obudu and Oban hills are made up of basement complex rocks (combination of igneous and metamorphic rocks). Jos Plateau is made up of volcanic rocks. Udi Hills are made up of carboniferous sedimentary rocks. Importance of Highlands

The metamorphic rocks of northern Nigeria which underlie the greater part of the region consist mainly of monotonous granite–high-grade gneisses and migmatites penetrated by large Pan-African monzogranite plutons (Ferre, 2006). The migmatites therefore constitutes an important group of the metamorphic rocks of northern Nigeria.

2 CHAPTER TWO GEOLOGY OF NIGERIA 2.1 ROCK TYPES The three major rock types - igneous, metamorphic and sedimentary - abound in Nigeria. Igneous and metamorphic rocks constitute the Precambrian basement complex which is the oldest, crystalline, solid physical foundation of the country.

Groundwater in Nigeria is restricted by the fact that more than half of the country is underlain by crystalline basement rock of pre-cambian era. The main rock types in this geological terrain include igneous and metamorphic rock such as migmatites and granite gneisses. Generally in their unaltered form, they are

metamorphic terrain that constitutes part of the Pan-African Trans-Saharan belt exposures in southeastern Nigeria. It is essentially characterised by the occurrence of regionally metamorphosed rock successions, pervasive migmatization, and granite plutonism (Ferre et al. 1996). The Plateau, which

Kyanite is one of the natural mineral resources in Nigeria, West Africa, it is a blue-green crystalline mineral which contains aluminium silicate and is mostly found in metamorphic rocks, sedimentary rock or aluminium-rich metamorphic pegmatites.

phases of deformation (D1, D2, D3) within th e crystalline rocks of the basement complex in northern Nigeria. According to this author M1 represents a period of progressive metamorphism to lower amphibolite facies. M2 is described as retrogressive and reached only green schist grade as did M3. In the southwest Boesse and Ocan (1988) recognized 3