nigeria granite pegmatite

PETROGRAPHY, GEOCHEMISTRY AND MINERALISATION …

2020-7-13 · relatively mineralized rare-metal pegmatites of the North Central Nigeria, such as Wamba, Nasarawa and Keffi pegmatites. KEYWORDS: Pegmatite, granite, petrography, geochemistry and mineralization INTRODUCTION Pegmatites, the host rocks of trace and rare elements like Sn, W, Nb, U, Th, Li, Be, Ta, Cs, Rb andPetrographical Study of Pegmatite from Some Locations …2018-7-5 · characteristics of igneous rock of granite and granitic pegmatite. This is an indication that the plagioclase in ijero pegmatite could have been bytownite or labradorite of thesolid solution series. References [1]. Anthony Hall (1996),Igneous Petrology. Longman Group Limited, Second Edition.549-555pp [2].

Petrology and geochemistry of pegmatites and associated ...

2021-5-17 · The origin and classifications of pegmatites has been major subject for debates among researchers for centuries. Jahns and Burnham argue in favour of fractional crystallization of a granitic pluton, while Simmons et al. believed that pegmatites originated by low-degree partial melting of crustal rocks in the presence of fluids.However, in some situations, these two …Geochemical Signatures and Mineralization Potentials of ...2015-5-20 · Geological map of Southern Obudu Plateau, Southeastern Nigeria (Modified after Ekwueme and Kroener, 1997). In the past, the search for mineralized pegmatites in Nigeria was concentrated within the NE-SW Regions, within the so-called ''Tin Province or Pegmatite Belt of Nigeria'' (Jacobson and Webb, 1946). However, recent studies by

Post-collisional Pan-African granitoids and rare metal ...

2014-7-1 · Mineralised pegmatites are associated with the Older Granite plutons in Nigeria, and existing Rb–Sr dates suggest that the pegmatites in central Nigeria were emplaced at c. 555 Ma (Matheis and Caen-Vachette, 1983). These pegmatites form sheets, typically up to 1–2 m wide, cutting both basement rocks and the Pan-African granitoid plutons.MINERALIZATION POTENTIALS OF PEGMATITES IN THE …2016-10-27 · Nigeria possesses a very large pegmatite environment. The pegmatites are widely distributed with a marked concentration of mineralized pegmatites in a broad belt, which extends from Ago-Iwoye in the southwest to Bauchi in the northeast, an air distance of more than 400kilometers. Thousands of pegmatites occur in this

Industrial Minerals Potentials of Ijero Pegmatite in Ekiti ...

2022-2-9 · Industrial Minerals Potentials of Ijero Pegmatite in Ekiti State, Southwestern Nigeria P.T. Ale, J.A. Dada and A.J. Adewumi Department of Geological Sciences, Achievers University Owo, Nigeria Abstract: Nigeria pegmatites are concentrated in a 400km NE-SW trending belt of which Ijero pegmatite is inclusive.Preliminary investigation on industrial properties of the ...2004-10-13 · In Olode-Falansa area, which is part of the southwestern basement complex of Nigeria near Ibadan, the major rock types are granite gneiss, quartzite, medium-grained granite and pegmatite. In particular, the pegmatites which occur as low-lying bodies, with a mineralogy dominated by pinkish-white microcline perthite, quartz, muscovite and plagioclase plus …

Industrial Minerals Potentials of Ijero Pegmatite in Ekiti ...

2022-2-9 · Industrial Minerals Potentials of Ijero Pegmatite in Ekiti State, Southwestern Nigeria P.T. Ale, J.A. Dada and A.J. Adewumi Department of Geological Sciences, Achievers University Owo, Nigeria Abstract: Nigeria pegmatites are concentrated in a 400km NE-SW trending belt of which Ijero pegmatite is inclusive.Economic potentials of pegmatites of Eruku area ...However, Bunu pegmatites is similar to slightly mineralized and barren pegmatite of Eruku (Adekeye and Adedoyin, 2007), Itakpe Area Central Nigeria (Okunlola and …

Nigerian rare‐metal pegmatites and their lithological ...

Pegmatite occurrences from southwest Nigeria, which are emplaced into Proterozoic meta-sedimentary-metavolcanic sequences, are enriched in tantalum relative to niobium. These geochemical characteristics are also displayed by the composition of eluvial heavy-mineral concentrates as well as by the trace-element distribution in cassiterites.Geological and Geochemical Characterisation of …In Nigeria, Pan African intrusive suites which comprise mainly granites, granodiorites and tonalites are intruded by pegmatite and aplites in numerous forms (Okunlola and Udoudo 2005). These pegmatites are believed to belong to the early Precambrian pegmatites, which together with the granite are classified by Rahaman (1988)

Geochemistry and Petrogenetic Evolution of Rocks …

2017-5-20 · porphyritic granite, pegmatite and medium-coarse grained biotite-hornblende granite are silica saturated with values ranging between 71.98% – 73.36%. Metasediments such as the biotite-hornblende schist and biotite gneiss are also silica saturated varying from 74.06% – 75.51. Al 2O 3 is consistentlyGEOCHEMISTRY, AND FELDSPATHIC STUDIES OF PAN ... …2019-2-8 · Porphyritic granite School of nursing Low lying massive rock. AD5 N07°40 30.6'''''' E005°11 59.8ıı 431 Feldspar,quartz Porphyritic granite Iyin quarry Inselberg Ad6 N07°38 15.6'''''' E005°12 66.7ıı 453 Feldspar Weathered pegmatite granite St Jude Church Pegmatite dyke Ad7 N07°35ı27.2ıı E005°13 06.1ıı

Petrogenetic and Compositional Features of Rare Metal …

2022-2-9 · pegmatite of southwestern Nigeria. The source of these pegmatites is still presently debated which have been ... the crystallization and solidification of the felsic granite to pegmatite melt. The rare-metal pegmatites have distinct chemical compositions and …Compositional features of precambrian pegmatites of …2016-5-15 · pegmatite occurring as near vertical intrusions into the older rocks (Figure 4), these pegmatites trend in the NW-SE direction. The coarse porphyritic granite occurs as a massive body and mostly contains minerals like quartz, microcline feldspar, and muscovite. The biotite-granite-gneiss is a metamorphic rock in which mineral

ON THE OCCURRENCE OF APLITE, PEGMATITE, AND

2020-8-31 · TAIN GRANITE OF GEORGIA. Aplite and pegmatite.-Careful field study of the larger and principal granite areas in Georgia, by the writer, indicates the general absence of true aplites therefrom. They have been observed in association with the granite masses only at one locality in the state. Since the border portions of the granite ...Geochemical Characterization of Mineralized Pegmatites .. positional trends and rare metal Ta-Nb mineralization potential of pegmatite and associated lithologies of Igbeti Area, South-western Nigeria. RMZ-Materials and Geoenvironment. 56(1), 38-53. [38] Ibe, C.U., Obiora, S.C., 2019.

Geological analysis of ground radiometric survey data of ...

granite and pegmatite of Zing-Monking area of Adamawa Basement region. The authors attributted this to possible uranium occurrences in this rocks. Ademila et al. (2018) investigated radioactive properties of rocks in parts of SW Nigeria and concluded that high radioactivity implies that the rocks are crystalline, undeformed and feldspar richPetrogenetic and Compositional Features of Rare Metal ...This research reviews the geology, petrogenesis, compositional trends and geochronology of the rare-metal pegmatite of southwestern Nigeria. The source of these pegmatites is still presently debated which have been explained as either product of highly fractionated molten material or anatexis of the local crust.

Geology, petrography and petrogenesis of pegmatite from …

The Gwon-Gwon pegmatite at Wamba is the third mineralized pegmatite in Nigeria. It falls within the Nigeria''s 400km stretch of pegmatite belt [ (fig.1), Matheis and Cean- Vanchette,1983] which trends from NW to the central North. The pegmatite "belt" in Nigeria is part of the Pan- African reactivation zone. 2 dustrial Minerals Potentials of Ijero Pegmatite in Ekiti ...2022-2-9 · Industrial Minerals Potentials of Ijero Pegmatite in Ekiti State, Southwestern Nigeria P.T. Ale, J.A. Dada and A.J. Adewumi Department of Geological Sciences, Achievers University Owo, Nigeria Abstract: Nigeria pegmatites are concentrated in a 400km NE-SW trending belt of which Ijero pegmatite is inclusive.

Sn-Ta-Nb mineralization potential of pegmatitic bodies in ...

The Bunu area in Southwestern Nigeria lies within the Basement Complex that forms part of the Pan-African platform of the crystalline rocks. The complex lies within the vast Trans-Saharan Pan African mobile of Neoproterozoic. The belt is characterized by voluminous post-collision granitoid plutons that are well exposed around the study area. The Bunu area consist of two major …Geology, petrography and petrogenesis of pegmatite from …The Gwon-Gwon pegmatite at Wamba is the third mineralized pegmatite in Nigeria. It falls within the Nigeria''s 400km stretch of pegmatite belt [ (fig.1), Matheis and Cean- Vanchette,1983] which trends from NW to the central North. The pegmatite "belt" in Nigeria is part of the Pan- African reactivation zone. 2.

Petrology and geochemistry of pegmatites and …

2021-7-14 · Matheis 1987;Kuster1990) located in northcentral Nigeria reworked Pan African belt which is one of the oldest pegmatite fields in Nigeria ("the old tin field"). Other fields are located in north, southwestern and southeastern basement complex of Nigeria typified by Egbe and Ijero pegmatite fields (Fig. 1) Responsible Editor: Domenico M. DoronzoPetrochemical Evaluations of the Pan African Pegmatites …Keywords: granite, muscovite, pegmatite, mineralization, precambrian 1. Introduction ... 69.31%; this is marginally lower than average values of rare metal Ta-Nb pegmatite of Nigeria (Okunlola, 2005) but comparable to the Ipetu ijesha barren pegmatites (Elueze, 1982), and Ago-Iwoye barren pegmatites (Akintola

Nigerian rare‐metal pegmatites and their lithological ...

Post-collisional Pan-African granitoids and rare metal PETROGRAPHY, GEOCHEMISTRY AND MINERALISATION …2020-7-13 · relatively mineralized rare-metal pegmatites of the North Central Nigeria, such as Wamba, Nasarawa and Keffi pegmatites. KEYWORDS: Pegmatite, granite, petrography, geochemistry and mineralization INTRODUCTION Pegmatites, the host rocks of trace and rare elements like Sn, W, Nb, U, Th, Li, Be, Ta, Cs, Rb and

Petrographical Study of Pegmatite from Some Locations …

2018-7-5 · characteristics of igneous rock of granite and granitic pegmatite. This is an indication that the plagioclase in ijero pegmatite could have been bytownite or labradorite of thesolid solution series. References [1]. Anthony Hall (1996),Igneous Petrology. Longman Group Limited, Second Edition.549-555pp [2].Petrochemical Evaluations of the Pan African Pegmatites …Keywords: granite, muscovite, pegmatite, mineralization, precambrian 1. Introduction ... 69.31%; this is marginally lower than average values of rare metal Ta-Nb pegmatite of Nigeria (Okunlola, 2005) but comparable to the Ipetu ijesha barren pegmatites (Elueze, 1982), and Ago-Iwoye barren pegmatites (Akintola

Compositional features of precambrian pegmatites of …

2016-5-15 · pegmatite occurring as near vertical intrusions into the older rocks (Figure 4), these pegmatites trend in the NW-SE direction. The coarse porphyritic granite occurs as a massive body and mostly contains minerals like quartz, microcline feldspar, and muscovite. The biotite-granite-gneiss is a metamorphic rock in which mineralSn-Ta-Nb mineralization potential of pegmatitic bodies in ...The Bunu area in Southwestern Nigeria lies within the Basement Complex that forms part of the Pan-African platform of the crystalline rocks. The complex lies within the vast Trans-Saharan Pan African mobile of Neoproterozoic. The belt is characterized by voluminous post-collision granitoid plutons that are well exposed around the study area. The Bunu area consist of two major …

The Form and Structural Features of Aplite and …

granite-gneiss and its evident replacement habit. All dikes belong to the porphyritic granite cycle. FIG. 5.-Features of aplites and pegmatites belonging to the porphyritic granite cycle and invading granite-gneiss. In all diagrams there is evidence of lateral displacement affecting the pegmatite dikes or the fissures to which they were related positional features of precambrian pegmatites of …2016-5-15 · pegmatite occurring as near vertical intrusions into the older rocks (Figure 4), these pegmatites trend in the NW-SE direction. The coarse porphyritic granite occurs as a massive body and mostly contains minerals like quartz, microcline feldspar, and muscovite. The biotite-granite-gneiss is a metamorphic rock in which mineral

ON THE OCCURRENCE OF APLITE, PEGMATITE, AND

2020-8-31 · TAIN GRANITE OF GEORGIA. Aplite and pegmatite.-Careful field study of the larger and principal granite areas in Georgia, by the writer, indicates the general absence of true aplites therefrom. They have been observed in association with the granite masses only at one locality in the state. Since the border portions of the granite ...Geoenvironmental Assessment Of Pegmatite Mining Site ...2017-2-13 · The granite outcrops that are flat lying although some are fairly projected above the ground surface and were found at the western flank of the study area. Sample of the body are generally mesocratic and medium grained. The Pegmatite observed in the study area occurs as dyke, intruded into the granite gneiss and trend mainly in NNW-SSE direction.

Geological analysis of ground radiometric survey data of ...

granite and pegmatite of Zing-Monking area of Adamawa Basement region. The authors attributted this to possible uranium occurrences in this rocks. Ademila et al. (2018) investigated radioactive properties of rocks in parts of SW Nigeria and concluded that high radioactivity implies that the rocks are crystalline, undeformed and feldspar richGeochemistry and Petrogenetic Evolution of Rocks …2017-5-20 · porphyritic granite, pegmatite and medium-coarse grained biotite-hornblende granite are silica saturated with values ranging between 71.98% – 73.36%. Metasediments such as the biotite-hornblende schist and biotite gneiss are also silica saturated varying from 74.06% – 75.51. Al 2O 3 is consistently

(PDF) Industrial minerals potentials of Ijero pegmatite in ...

Nigeria pegmatites are concentrated in a 400km NE-SW trending belt of which Ijero pegmatite is inclusive. Ijero pegmatite is wholly crystalline igneous …Sn-Ta-Nb mineralization potential of pegmatitic bodies in ...The Bunu area in Southwestern Nigeria lies within the Basement Complex that forms part of the Pan-African platform of the crystalline rocks. The complex lies within the vast Trans-Saharan Pan African mobile of Neoproterozoic. The belt is characterized by voluminous post-collision granitoid plutons that are well exposed around the study area. The Bunu area consist of two major …

Geological analysis of ground radiometric survey data of ...

granite and pegmatite of Zing-Monking area of Adamawa Basement region. The authors attributted this to possible uranium occurrences in this rocks. Ademila et al. (2018) investigated radioactive properties of rocks in parts of SW Nigeria and concluded that high radioactivity implies that the rocks are crystalline, undeformed and feldspar richThe Form and Structural Features of Aplite and …granite-gneiss and its evident replacement habit. All dikes belong to the porphyritic granite cycle. FIG. 5.-Features of aplites and pegmatites belonging to the porphyritic granite cycle and invading granite-gneiss. In all diagrams there is evidence of lateral displacement affecting the pegmatite dikes or the fissures to which they were related.

GEOCHEMISTRY, CLASSIFICATION CHARACTERISTICS OF …

2016-11-5 · FROM IJERO-EKITI, EKITI-STATE, SOUTHWEST NIGERIA Obasi, Romanus Ayoola and Madukwe Henry Department of Geology Ekiti State University, PMB 5363, Ado- Ekiti, Ekiti State- Nigeria. ABSTRACT: Geochemical analysis of ten (10) representative pegmatite samples reveal high silica (SiO 2) 66-78 wt % and alumina (Al 2 O 3) 10.08-19.57 wt % contents.Rare Metals (Ta-Nb-Sn) Mineralization Potential of ...Recent studies in Nigeria by [11] and [12] revealed that Nigeria has a pegmatite belt which is beyond the confines of the 400 km NE-SW trending belt from Abeokuta, southwestern Nigeria to North Central Nigeria which previous authors thought they extend [13] [14] .

Petrogenetic and Compositional Features of Rare Metal …

2022-2-9 · pegmatite of southwestern Nigeria. The source of these pegmatites is still presently debated which have been ... the crystallization and solidification of the felsic granite to pegmatite melt. The rare-metal pegmatites have distinct chemical compositions and …Petrochemical Evaluations of the Pan African Pegmatites …Keywords: granite, muscovite, pegmatite, mineralization, precambrian 1. Introduction ... 69.31%; this is marginally lower than average values of rare metal Ta-Nb pegmatite of Nigeria (Okunlola, 2005) but comparable to the Ipetu ijesha barren pegmatites (Elueze, 1982), and Ago-Iwoye barren pegmatites (Akintola

Mineralized pegmatites in Africa

Granite-hosted and stockwork deposits are detailed for Nigeria, Cameroon, South Africa, Namibia, Sudan and Egypt, while vein and lode-hosted deposits are discussed for …Feasibility Study of Establishing a Granite Aggregate ...2020-9-3 · sediments. The older granite, pegmatite, aplite, and granodiorite can be found in this area. The older granite occupies the whole Area and the most common of them is the porphyritic granite, granodi-orite and aplite are available [8]. Pegmatite is widely distributed throughout the Precambrian basement complex of the Northern Nigeria [4].

Geochemical Characterization of Mineralized Pegmatites ...

Compositional trends and rare metal Ta-Nb mineralization potential of pegmatite and associated lithologies of Igbeti Area, South-western Nigeria. RMZ-Materials and Geoenvironment. 56(1), 38-53. [38] Ibe, C.U., Obiora, S.C., 2019.Petrography and Geochemical Characterization of a …2021-3-11 · Older granite suites is discordantly emplaced into the host migmatite rock (Anifowose & Kolawole 2012). Available geochronologic data across major granite terrains in Nigeria showed these granitic masses and the pegmatite associated with them all have their ages range between 620 and 580 Ma (Goodenough et al. 2014). Despite their