in [Colchester] .
Written in English
|Statement||by R. Jacobson and J.S. Webb.|
|Series||Nigeria. Geological Survey. Bulletin, no. 17, Bulletin (Geological Survey of Nigeria) ;, no. 17.|
|Contributions||Webb, J. S., joint author.|
|LC Classifications||QE461 .J3|
|The Physical Object|
|Number of Pages||61|
|LC Control Number||gs 48000169|
he Sn-(Nb, Ta) mineralization of the Wamba field (central Nigeria) occurs in muscovite-quartz-microcline pegmatites, which are related to the late-orogenic Pan-African (f Ma) "Older Granites". The emplacement of granites and pegmatites was controlled by Cited by: of Nigeria, and (b) The tin fields linked to the pegmatites of Central Nigeria (Raeburn, ). The bulk of the tin from Nigeria comes from the Younger Granites; however a substantial amount of tin is also produced from the pegmatites of Central Nigeria. The Keffi area which lies inCited by: 2. Kuster, D. (). Rare-Metal Pegmatite of Wamba, Central Nigeria – Their Formation in Relation to Late Pan-African Granites. Mineral Depos Pp Pan-African pegmatites in Nigeria • Barren pegmatites are small and occur in and around early granodioritic Kibaran pegmatites in central Africa • Namaqualand pegmatites are essentially the same age as pegmatites in Uganda, Mica books developed in the wall zone at Blesberg south of Vioolsdrif • Hugo ().
Title: Field features and mode of emplacement of pegmatites of keffi area north central nigeria, Author: IJSTR Research Publications, Name: Field features and mode of emplacement of pegmatites . This research work gives geological and geochemical data from the Gwon-Gwon pegmatite field of Wamba, central Nigeria and will also provide information on economic potential of the pegmatite, the petrography and petrology of the pegmatite and geochemistry of the pegmatite of the study area. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. of pegmatites of keffi area north central nigeria, Author: IJSTR. Nigeria’s population is projected to grow from more than million people in to million in , becoming the world’s fourth most populous country. Nigeria’s sustained high population growth rate will continue for the foreseeable future because of population momentum and its high birth g: pegmatites.
Late Pan African ages ( Ma) have been recorded for the rare metal pegmatites of central and southwestern Nigeria suggesting emplacement during the end of Pan African Magmatic activity. The mineralised pegmatites have generally been regarded as late stage residual fluids of the common Older Granites in the basement Size: KB. The pegmatitesof Nasarawa area occur in the central part of Nigeria. They are mainlyhosted by phyllonites in a NNE-SSW trending shear zone lying east of somefoliated Pan-African and West of Jurassic Afu ComplexYoun-. The Precambrian Basement Complex of Nigeria consists of migmatite, gneiss, metasediments and metavolcanics that have been intruded by Pan-African Granitoids which consist of granites, gabbros, charnokites, diorites, syenites, dolerites and pegmatites (Wright, , McCurry, , Kinnaird, , Dada et al., ) while the north central area of the crystalline basement of Nigeria has witnessed Cited by: 1. eral oliversity of gemstone raremetal pegmatites besides colorful tour-maline. The Lipovskoye pegmatite field, usually called “Lipovka” for short, is located in Rezh district of Sverdlovsk Oblast in Central Urals. It is 70 km to northnortheast from Ekaterinburg city and in 20 km to northwest from town of Rezh.