 | | Journal (article/letter/editorial) | | 48 The age of fergusonite from the Jos area, Northern Nigeria. 1 By A. G. DARNLEY, M.A., Ph.D., A.M...Summary. Two fergusonite concentrates from different localities in the Jos area of Northern Nigeria have been...having a mean age of 159=[:25m.y. N Northern Nigeria fergusonite is known to occur only in the amphibole granites...(Jacobson, Macleod, and Black, 1958). In the Jos area fergusonite derived from the intrusive porphyries occurs...two such localities about 40 miles apart: close to Kuru about 9 ~ 36' N., 9 ~ 20' E., and from the north-west |  | | Journal (article/letter/editorial) | | granodiorite, kyanite, 804 Bonsa river: gorceixite, 281 NIGERIA Danalite, genthelvite, lxxxvii Amo complex; Buff...Kaleri complex; Liruei complex; Pankshin complex; Jos-Bukur~ complex; Shere Hills (all in the Younger granites):...ferrohastingsite, 358, 377, 646 Kuru, Jos: fergusonite, 48 Tokkos, Jos: fergusonite, 48 Central Africa Katanga |  | | Journal (article/letter/editorial) | | CENTRAL NIGERIA T.A. B A D E J O K O Department of Geology, University of Ibadan, Ibadan (Nigeria) (Accepted...trace-element content of Mesozoic granites in central Nigeria. Chem. Geol., 54: 43--51. Biotite- and riebeckite-granites...associated with the Mesozoic Younger Granites of Nigeria. Enhanced values of Rb, Nb, Sn, Li and F in some...Younger Granites of Nigeria. I I 150krn 45 253 bedrock samples from six complexes (Jos--Bukuru, Ropp,...mineralization The Younger Granites of central Nigeria form a series of high-level anorogenic complexes |  | | Report (chapter) | | COMPLEXES IN THE YOUNGER GRANITE PROVINCE OF NORTHERN NIGERIA CONTENTS I. INTSODUCTmN . . . . Page 5 ....19 23 35 42 (d) Rop . . (e) Sha-Kaleri. 9 (f) Jos-Bukuru (g) Banke (h) K u d a r u (i) Ningi . . ....thesis, unpublished). During the resurvey of the Plateau tinfields between 1945 and 1948, R. A. Mackay,...into the PreCambrian Basement Complex in Northern Nigeria. They are high-level, magmatic granites with sharply...There are about forty Younger Granite complexes in Nigeria. Until a complete survey of the province has been |  | | Journal (article/letter/editorial) | | particularly rare metals. Beryl-containing, fergusonite, and euxenite granites are already widely known...columbite-bearing granites of Northern Nigeria (the Djos plateau deposit) have for many years been the...small number of specimens of rocks from Northern Nigeria, which were very kindly sent to the Institute for...Jacobson, Director of the Geological Service of Nigeria. A BRIEF GEOLOGIC AND PETROGRAPHIC CHARACTERIZATION...large disjunctive dislocations. 3 In Northern Nigeria the niobium-bearing granites form, a part of the |  | | Journal (volume) | | und Saimaa .. . . AHTI SIMONEN, Orbicular Rock in Kuru, Finland . . . . . . . . . . . . . . . . . . . ...crystals from other localities studied, including Nigeria, Mozambique, Southern Rhodesia etc. Plate Ia illustrates...(for instance the so-called »Younger granites» of Nigeria). In addition, minerals of accessory elements are...of magmatic origin, as is the case in Northern Nigeria where such granites grade over, through granite...granites elsewhere; the prospectors for tin in Nigeria know that cassiterite occurs there in the greisenized |  | | Journal (volume) | | und Saimaa .. . . AHTI SIMONEN, Orbicular Rock in Kuru, Finland . . . . . . . . . . . . . . . . . . . ...crystals from other localities studied, including Nigeria, Mozambique, Southern Rhodesia etc. Plate Ia illustrates...(for instance the so-called »Younger granites» of Nigeria). In addition, minerals of accessory elements are...of magmatic origin, as is the case in Northern Nigeria where such granites grade over, through granite...granites elsewhere; the prospectors for tin in Nigeria know that cassiterite occurs there in the greisenized |  | Graupner, T., Melcher, F., Gäbler, H.-E., Sitnikova, M., Brätz, H., Bahr, A. (2010) Rare earth element geochemistry of columbite-group minerals: LA-ICP-MS data. Mineralogical Magazine, 74 (4) 691-713 doi:10.1180/minmag.2010.074.4.691 | Journal (article/letter/editorial) | | Bauchi Province, Nigeria Jantar tin mines, Kuru Camp, near Bukuru, Bauchi Province, Nigeria Lema, Kwara state...state, Nigeria Ulug-Tanzek alkali granite, northern Sangilen Ridge, West Siberia, Russia Orlovka Li-F-rich...greenstone belt, Manitoba, Canada Maru belt, NW Nigeria Kokobin, Anamase, Oda, Ghana Kenticha pegmatite...COLUMBITE melt are garnet, xenotime, zircon, fergusonite and euxenite-group minerals. In both the Homestead...and Kiessling, 1990; some locations in Nigeria). Fergusonite occurs in variable quantities in metasomatites |  | | Book | | Karelia Karelia, NE Russia Karelia, NE Russia Keivy plateau,Kola Peninsula Keivy, Kola Peninsula Khibiny, Kola...Pamir, Tadzhikistan East Pamir, Tadzhikistan Keivy plateau,Kola Peninsula Keivy, Kola Peninsula Kirgizia Kola...Artsvanik Turinskie mines Berkara deposit Putorana plateau Voznesenskii mine Nikitovka Tajmet deposit Taymetskoye...depoosit Lachin-Khana depoosit Konder Konder massif Kuru-Tegerek deposit Konder Konder massif Kara - Kamys...Ferberite Ferberite Ferganite Fergusonite Fergusonite Fergusonite Fergusonite (Ce) Feroxyhyte Feroxyhyte |  | | Book | | Y)NbO4 (tetragonal) ·on-metamict tetragonal fergusonite-(Ce) was first described in 1976 om the carbonatites... crystals to x 0.1 mm. The REE-spectrum for fergusonite-(Ce) was determined as · \·ta Ce Pr Nd Sm 4Eu...indicates that the •Symmetry is monoclinic. Fergusonite-beta-(Ce) from Ilmeny Mts. is a etamict mineral...an X -ray pattern 0rresponding to monoclinic fergusonite-beta [405]. ame: Ce-dominant analogue offergusonite-beta-(Y)... YNbO4 (monoclinic) Non-metamict monoclinic fergusonite-beta-(Y ) was found as an accessory mineral in |  | | Book (edition) | | resinous.streak white. H = 5. D = 3.73. Np,m,g = Plateau, Zomba ...Gwinear.bothCornwall.EngJand,at Lavrion.Greece. Plateau,Sakha, Siberia, Russia, and in the Dara-i-Pioz...on Grossgreiner and Schwarzenstein Mt., the Jos Plateau.!\igeria. both overlookingZillertal Valley, Tirol...anatase occurs in the Druzhnoye deposit. Aidan Plateau. Sakha. Siberia. Russia. The most important anatase...Namibia, and in the Murrael-Elevyn Cave, Nullabar Plateau, Western Australia. AC, B 28, 2845-2852, 1972. |  | | Report (issue) | | Microprobe analyses (4) from Burra ring dike, Nigeria. AENIGMATITE. Jones, Mineral. Mag. 48, 1-12 (1984)...Microprobe analyses (7) from volcanic rocks, Campbell Plateau AMPHIBOLE. Gamble, Contrib. Mineral. Petrol. 88...Microprobe analysis (1) from Burra ring dike, Nigeria. (Arfvedsonite). AMPHIBOLE. Imeokparia (Lithos...Microprobe analyses (5) from granite, northern Nigeria. AMPHIBOLE. lonov et al. (Dokl. Akad. Nauk SSSR...(Russian) 431 M565 Microprobe analyses (6) from Kuru- Tegeraba deposit. ARSENOPYRITE. Pouclet et al. |  | | Report (issue) | | Sahatany Valley pegmatite district in Madagascar; Nigeria; Namibia; Nuristan Valley, Afghanistan and the...Czech Republic; Sanga Sanga, Tanzania and Abuja, Nigeria. Color: colorless, pink, green and brown, polychrome...heat-treated. Similar stones have recently been found in Nigeria (Zang et al. 2001). Causes of Color in Tourmaline...liddicoatite, but now there are examples from Nigeria, Russia, Brazil, Mozambique, Tanzania, Czech Republic... ilmenite, apatite, tourmaline and gold! Nigeria Nigeria has been a tin producer since 1 900. The deposits |  | | Journal (volume) | | Comm. geol. Finlande N:o 97, p. 68-77. Kevojoen kuru, Suomen »Suuri Kanjoni». Summary: The gorge of Kevojoki...accumulations in front of the escarpment of the basalt plateau. Because of the topography and shortness of time...formation as seen in Fig. 3 is primarily part of a plateau escarpment that slid down to its present position...This phenomenon is a typical feature along the plateau escarpment elsewhere in Disko and, in the light...and Frondei regard adelpholite as an altered fergusonite, on page 778 they, however, state that the mineral |  | | Journal (volume) | | Comm. geol. Finlande N:o 97, p. 68-77. Kevojoen kuru, Suomen »Suuri Kanjoni». Summary: The gorge of Kevojoki...accumulations in front of the escarpment of the basalt plateau. Because of the topography and shortness of time...formation as seen in Fig. 3 is primarily part of a plateau escarpment that slid down to its present position...This phenomenon is a typical feature along the plateau escarpment elsewhere in Disko and, in the light...and Frondei regard adelpholite as an altered fergusonite, on page 778 they, however, state that the mineral |  | | Book | | carbonate rocks. Igneous activity in the form of plateau lavas is possible. In compiling this monograph...of Keivy, north of Lake Semuzhye, on an upland plateau. It belongs to part of the southern limb of the...belt are Hetolambi and Pirtima in North Karelia and Kuru-Vaara and Otradnoye in the southern Kola Peninsula...extraction for a long period in the future. The Kuru-Vaara deposit is chosen as a case-study. It is located...Otradnoye (Fig. 42), Otradnoye being the largest. The Kuru-Vaara deposit contains over 200 pegmatite veins |  | | Book (edition) | | Ca2Mg(COJ)1Bz(OH)8 ·4H 10, mon., Qinghai-Xizaig Plateau, People's blic ofChina. 50,262, BM 104, 578-581... Gamet Ridge, Navajo volcanic ficld. Colorado Plateau, Arizona, USA, 85, 792-800 (incl. str.) D Carminite...VtO, •. mon .. near the Dolores River. Colorado Plateau, Colorado. USA. 42. 587-593. 45, 1144-1166 (sir...Fergusonlte-beta-(Ce), (Ce,La,Nd)Nb04• mon., dimorph.with Fergusonite-(Ce), Bayan-Obo complex,north of Baotau, lnner...1i022(OH)2• trig., Egbe district,KabbaProvince,Nigeria,EJM 14, 389-395 Nigerite group D Ferronlgerlte-6N6S |  | | Book | | Distribution of granitic rocks in the Kitakami plateau. 219 29 Geologic map of the Taro mining district...now known. The Favosites-limestont in the Hida plateau of West Japan, which had been considered correlative...and Devonian Systems in Japan. Japan, the Hida plateau of West Japan, and the Kuma-Kii region of Southwest...faunas are well preserved in limestones in the Hida plateau, where, however, no Silurian fossils, such as halysitids...1941, 42). The Takaharagawa series in the Hida plateau is dated as Coblenzian-Eifelian by Cheirurus (Crotalocephalus) |  | | Book (edition) | | Physlogruphieullv. the Peninsula is an ancient plateau exposed for long ugis to denudation and approaching...thr hills present along these coasts. The Deccan plateau falls in thr ram-shadow of thr Western Ghats and...SatjHira*. the Aravallis and those forming the Assam plateau. The Western Ghats : Huso form a well-marked feature...Anatmudi. Die top of these hills t« an undulating plateau which is well-forested. They support very good...slop's are gentle and often grade into the Mysore plateau and the plains of the interior districts of Madras |  | | Book (edition) | | Rhenosterhoek in the east. An extensive geochemical plateau was found on portions of the farms Strydfontein...water Stage of the Waterberg System. On the Palala Plateau on Baviaansdraai 587 LR (B 13), about 100 km west...observed in quartz lenses below the Neint Nababeep plateau in the valley of the Kowiep River (G 2). In 1973...zircon and fergusonite. About 7 tons of gadolinite and a considerable quantity of fergusonite were produced... where it disappears under the Neint Nababeep Plateau. Most of the deposits of economic importance are |  | | Conference Proceedings (Volume) | | each heating. The biotite from sample BH-1 has a plateau age of 302.99±1.58Ma, calculated from steps 3-15...4, initial Ar/ Ar =305) is concordant with the plateau age (Fig. 3b). 4 The age of Be-U Mineralization...uplifting in southeastern part of the Tibetan plateau - evidence from Ar-Ar thermochronology. Acta Petrologica...Geology, 61(11):319-324 39 Figure 3. (a) Ar/ Ar plateau age and (b) isochron age of muscovite from sample...Uranium-bearing sandstone deposits of the Colorado plateau. Economic geology, V45:1-11. Goldhaber MB, Reynolds |  | | Book (volume) | | Council of. Government Anthropologist to Southern Nigeria. Corresponding Member of the Societe d’Anthropologie...execu¬ tion he sought a secluded retreat on the Plateau de Satory at Versailles and took exercise after...fact that Cherrapunji stands on the edge of the plateau overlooking the plains of Bengal, where it catches...on the Pacific. The mountain region includes a plateau of great fertility and temperate climate, which...Tuxtla Gutierrez (pop. 9395 in 1900), is on the plateau, 3% m. from the Rio Sabinas, and 138 m. N.E. of |  | | Book (volume) | | Hit AND MOUNTAIN TERRAIN; MOUNTAIN; PLAINS; PLATEAU; TERRAIN AREAS. Hammond, Prof. P. Head, Department...Professor of Zoology, University College, Ibadan, Nigeria. CepHALOCHORDATA. Webb, Dr. Richard A. /8M Research...islands Permafrost Physical geography Plains Plateau River South America South Pole 182 Topical...10 9 159 13-14* 107-108 529. Appalachian Plateau 12 108 Apparent 526 Apple maggot 5 349 Apple...202-203 Automatic autoimmunity 2 337-339° Western Plateau 2 329 2 319 Autoantibody 9 466 2 2 344-345 |
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