 | | Report (issue) | | IRELAND ISRAEL ITALY JAMAICA JAPAN JORDAN KAZAKHSTAN KENYA KOREA, REPUBLIC OF KUWAIT KYRGYZSTAN LAO PEOPLEâS...China (2), Egypt, Ghana, Islamic Republic of Iran, Kenya, Madagascar, Mongolia, the Philippines, Ukraine...FROM SELECTED ALKALINE CARBONATITE COMPLEXES OF KENYA ..................................................characterizing and evaluating national uranium resources; Kenya focused on development of analytical techniques;...INVESTIGATORS FOR CRP IAEA Institute Member State City Kenya University of Nairobi Nairobi Title Multimodal |  | | Book (edition) | | localities as inclusions in the limestoneââ (italics mine). Actually, the first published description of...most of the field work on the Iron Hill complex of Gunnison County, Colorado, in 1912-1913. Although his...accepted the idea of an igneous origin for the Iron Hill carbonatite. In 1924 Bowen, who had visited the...carbonatite dikes cutting the kimberlite of the Premier mine (p. 542) he classed as magmatic, but 1 Bowen admitted...Cove, Arkansas (Erickson and Blade, 1963), Iron Hill, Colorado (Olson and Wallace, 1956), Mountain Pass |  | | Journal (article/letter/editorial) | | together with published analyses from fenites of Kenya, Uganda and Tanzania, include those of co-existing...formed from pyroxene-gneiss (Napak), sandstones (Mrima Hill [BAKEI~, 1953]), acid volcanics (I{oma) and even...complexes of eastern Uganda and the Nyanza area of Kenya, the author and colleagues selected specimens from...KiLorneU-es I Fig. 2. Map of eastern Uganda and western Kenya, showing main ijolite-carbonatite intrusive complexes...and soda-amphibole are more peripheral. Nyanza, Kenya Rangwa (McCALL, 1958; FINDLAY, 1967). The nephelinite |  | | Journal (article/letter/editorial) | | Bearpaw Mtns., Montana, pseudoleucite, 596. Benallt mine, Rhiw, Caernarvonshire, celsian, 508. Berek compensator... 2rid edn, Vol. 2, 554; Vol. 3, 1022. Boqueirdo mine, Parelhas, Rio Grande do Norte, Brazil, leucophosphite... 200. Brazilianite, Brazil, d.t.a., 427. Brejui mine, Currais Novos, Rio Grande do Norte, Brazil, bismuth...Mechanism of decomposition of serpentine, 189. Broken Hill, New South Wales, plagioclase, 488. Bromellite,... Capo di Bavo, Rome, leucite, 596. Cariboo gold mine, Wells, British Columbia, scheelite, 995. CARN~mO |  | | Report (issue) | | Report No. 45 COLONY AND PROTECTORATE OF KENYA MINISTRY OF COMMERCE Ă N D INDUSTRY GEOLOGICAL SURVEY...of South Nyanza, in the south-western corner of Kenya. It is a most important area as in its northern...there at an earlier date. The Macalder gold-copper mine lies in the south-west part of the area, and a brief...Rusinga Island 49 Fig. 6âGeological section of Kiahera hill, Rusinga Island 52 Fig. 7âSketch section of the...1,400 square miles of South Nyanza, in western Kenya, on the shore of Lake Victoria! The land area is |  | | Book | | MINERALS& GEMSTONES of East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published...Africa 10 East African resources 12 Burundi 13 Kenya 14 Rwanda 16 Tanzania 17 Uganda 20 Gemological properties...through Tanzania, Kenya, Ethiopia and into the Sudan - has blessed East Africa, Kenya and Tanzania, with...now mainland Tanzania) and then progressing to Kenya - I am proud to say that the coloured gemstones...fact is that both of the national gemstones of Kenya and Tanzania (tsavorite and tanzanite, respectively) |  | | Report (issue) | | ~port- - - - -- - - - - - - - - Graph showing world mine production of niobium concentrate, for selected...larger, than was established when the decision to mine was made. Experts with a sound knowledge of a deposit...1970 1975 1980 1985 1990 ⢠Year 2. World mine production of niobium concentrate, for selected...production is dominated by three producers that mine pyrochlore; the Araxa open pit in Minas Gerais,...state, also in Brazil, and the Niobec underground mine in Quebec Province, Canada. The Brazilian position |  | | Journal (volume) | | 19 Zircon 19 Petrogenesis References ii Ilomba Hill from the Songwe Plain to the north-west 3 Photomicrograph...15 5 Radiometric map of the summit area, Ilomba Hill 16 TABLES 1 2 3 4 5 6 7 Geological history of...out intermittently over the past 23 years. Ilomba Hill is noteworthy for its uranium-rich pyrochlore, and...pyrochlore deposits of south-eastern Africa. Ilomba Hill lies in the extreme north-western corner of Malawi...Deans to contain pyrochlore, near the summit of the hill and, the following year, carried out a detailed |  | Taylor, Ryan D., Shah, Anjana K., Walsh, Gregory J., Taylor, Cliff D. (2019) Geochemistry and Geophysics of Iron Oxide-Apatite Deposits and Associated Waste Piles with Implications for Potential Rare Earth Element Resources from Ore and Historical Mine Waste in the Eastern Adirondack Highlands, New York, USA. Economic Geology, 114 (8) 1569-1598 doi:10.5382/econgeo.4689 | Journal (article/letter/editorial) | | Earth Element Resources from Ore and Historical Mine Waste in the Eastern Adirondack Highlands, New York...mined in the United States since the Mountain Pass mine, California, was put on care and maintenance at...boulder-sized clasts pulled from the mine and deposited near the mine openings, and tailings piles, which...Library - Acquisitions user REE RESOURCES FROM MINE WASTE, EASTERN ADIRONDACK HIGHLANDS, USA 73°40â...Fisher Hill Cookshaft N Orchard pit Barton Hill gate 6 Barton Hill gate 7 Arch pit Welch pit County pile |  | | Journal (article/letter/editorial) | | composition of the replaced mineral. At Rubicon Mine, Karibib, a narrow marginal zone of mangantantalite... petalite, amblygonite, Li-Mn-Fe phosphates, microcline, albite (cleavelandite), muscovite, beryl and...observed in barium pyrochlore ('pandaite') from Mrima Hill, Kenya, by Harris (1966). A detailed examination...of manganotantalite and ferrotantalite, Rubicon Mine, Namibia 1 2 3 4 5 6 7 8 9 10 Ta205 Nb205...Manganotantalite (light area) see Fig. 8. Rubicon Mine, S, W. Africa. Area of intermediate composition |  | | Journal (article/letter/editorial) | | % from tin slag refining and 10 % from secondary mine concentrates. Due to rapid industrialisation and...Canada account for about 92 and 7 % of Nb world mine production, respectively. Since the bulk of the...the start-up time for new operations. The Kenticha mine (Ethiopia) is a past producer that may re-enter...studies on new developments) are required in any mine as price levels vary for each deposit and are dependent...concentrate buyers. In western countries, a typical mine may take more than 3 years to put into production |  | | Report (volume) | | Alma-ata, U.S.S.R. Kenya Geol. Survey Bull.-Geological Survey of Kenya Bulletin. Nairobi, Kenya. Khim Anal.... Oak Ridge, Tenn. Nucleonics-Nucleonics. McGraw-Hill Publishing Co. New York, N.Y. Nuevo Cimento-11 Nuevo...Monazite deposits in calcareous rocks, Northern Lehmi County, Idaho: Idaho Bur. Mines and Geology Pam ph. 99...Beryllium deposits of the Mount Antero region, Chaffee County, Colorado: U.S. Geol. Survey Bull. 982-D, p. 95-119...Rhabdophane from a rare-earth occurrence, Valley County, Idaho, in Geological Survey Research 1968: U.S |  | | Journal (issue) | | the Colonies With appende,d summary reports on: Kenya . Uganda ⢠Tanganyika . ⢠⢠⢠⢠⢠⢠Northern...Resources COLONIAL GEOLOGICAL ABSTRACTS Part I .-Kenya . ⢠⢠⢠⢠â˘â˘ Vll â˘â˘â˘ Vlll CONTENTS PAGE...selection of these abstracts deals exclusively with Kenya. Papers published since 1950 have been abstracted...Depths of the Earth.'' 598 pp. (New York~ McGraw-Hill Book Company.) 1944. '' Volcanism and petrogenesis...northern Kavirondo." Rep.. No. 9, Min. geol. Dep. Kenya. 54 pp. THE PETROLOGY OF MAURITIUS 33 M. A |  | | Report (issue) | | able.pdf. Cover. The Mountain Pass Mine, San Bernardino County, California, was the only active producer...............................................O21 Mine Waste Characteristics.........................................................................O22 Mine Closure...........................................Figures O1. O2. O3. O4. O5. Graph showing world mine production of rare-earth oxides, by country and...O6 Photograph of the Mountain Pass Mine in San Bernardino County, California, which was the only active |  | | Journal (article/letter/editorial) | | texture. Small amounts of feldspar (possibly microcline). (B. R. Young, Institute of Geological Sciences...lamellae. Dominant X-ray reflections of orthoclase/microcline although not recognizable in thin sections. Quartz...Goyazite, Wigu Hill, Tanzania (McKIE, 1962). 4 Strontian florencite, Kangankunde Hill, Malawi (McKIE...to those of normal sediments. When orthoclase/microcline is present, however, the rubidium levels are...flint-clays, however, for example the Pennsylvanian Olive Hill clay in Kentucky, are different. This clay is an |  | | Report (issue) | | More. Also, 877 ft of strata were examined in a mine drift. Inquiries : The number of inquiries has now...of Hydro logical Research Committee on climatic (hill) peat. Dr. W. Bullerwell served on the R.S. Jolin...maintained with Cumberland, Westmorland and West Riding County Councils on the M6 (where the I 11stitt1te carried...M l and Trans-Pennine motorways. Worcestershire County Cou11cil and the Droitwich Developrnent Authority...Reservoir, and the highway engineers of Glamorgan County Council were assisted in their i11vestigations |  | | Journal (issue) | | Structures on a Kenya Trachyte. By B. N. Temperley, B.Sc., Ph.D., Mines and GeologicalDepartment, Kenya . . . The...425 429 438 REPORTS FROM THE GEOLOGICAL SURVEYS Kenya ⢠⢠⢠Uganda ⢠⢠⢠Tanganyika ⢠Northern Rhodesia... 412 413 412 Gigantic PressureStructures on a Kenya Trachyte Text-fig. 1 ⢠Text-fig. 2 Text-fig. 3...Granites . . . . . . Manner of Occurrence of Microcline in Sierra L,eone Granites . . . . . page...dominated in the north by the flat-topped hill of Nsamuzi. Between this hill and the smaller hills of Buzindere |  | | Report (volume) | | yielded 16,230.7 tons during 1953-56 (Pike, 1958). The mine closed in March 1959 but reportedly was reopened...granodiorite (New Hampshire Plutonic Series). Microcline granite (Syut- Tuva, U.S.S.R. ______ _ khol Complex)...Shield, Canada. Granophyre_______________ Fairfax County, Va â˘.. Granite (Boundary Peak California ____________...________________ _ Nepheline syenite_________ Augusta County, Vaâ˘â˘ Phonolite and tephrite. ___ Kaiserstuhl,... U.S.S.R. Teschenite __ -------------- Augusta County, Va __ 13 8 8 (1962). ----------------------2 |  | | Journal (issue) | | 416 428 REPORTS FROM THE GEOLOGICAL SURVEYS Kenya ⢠⢠⢠⢠⢠⢠⢠⢠⢠⢠438 ⢠⢠⢠⢠...elevation being 700 to goo ft. The highest point, Zagaya Hill ( I ,226 ft.), forms the northern bastion of a prominent...forms conspicuous morphological features. Zagaya Hill, the prominent feature south-west of Sans Souci...Grande Riviere, and form the high ground of Manantial Hill (903 ft.), consist of a series of consolidated volcanic...forming the elongated strike-ridge of Manantial Hill, which rises sharply from the almost inaccessible |  | | Report (issue) | | INSTRUCTIONAL COURSES AND SPECIALIST Ass!STANCE KENYA UGANDA TANGANYIKA 44 NORTHERN RHODESIA. 48 57...Building, London Frontispiece Activities of the Kenya Geological Survey Jacingp. 30 Headquarters ofthe...Islands ,, 117 Text-fig. 1 Geological Mapping in Kenya page 30 Text-fig. 2 Establishment and Strength of...dealing with the individual countries concerned. In Kenya, for instance, 17,790 sq. miles had been geologically...Jur assic and Cretaceous sediments in north-east Kenya and ofKarroo to Recent sediments near the coast |  | | Report (issue) | | 5371-2-7 Printed in Germany Above: Schor! and microcline from Pakistan's world famous Gilgit area. The...elbaite crystals with lepidolite from the Golconda Mine in Minas Gerais, Brazil by Eberhard Equit, 1993...spelling of the old word turamalin to tourmalin. Hill coined the term tourmaline garnet in 1771 in reference...view of the old mine portal on the north side of the Himalaya Mine in San Diego County, CA. D. Sterrett...tourmaline was found in the pegmatites of San Diego County, California. The Advent of Chemical Analysis |  | Chakhmouradian, Anton R., Reguir, Ekaterina P., Kressall, Ryan D., Crozier, Jeremy, Pisiak, Laura K., Sidhu, Ravinder, Yang, Panseok (2015) Carbonatite-hosted niobium deposit at Aley, northern British Columbia (Canada): Mineralogy, geochemistry and petrogenesis. Ore Geology Reviews, 64. 642-666 doi:10.1016/j.oregeorev.2014.04.020 | Journal (article/letter/editorial) | | Minière de l'OgoouĂŠ (COMILOG)/ ERAMET Cortec Mining Kenya Ltd./ PaciďŹc Wildcat Resources Corp. ? 660 Ma...20% Nb2O5 cutoff Mrima Hill, JomboMrima alkaline complex, Kwale Dist., southern Kenya Disputed between...Niocan Inc.; mined in 1961â 1976 by St. Lawrence mine, Oka complex, Deux-Montagnes, QuĂŠ- Columbium and...ijolites, nepheline syenites, syenites, apatiteâmicroclineâbiotite rocks) Lower Triassic Lateritic proďŹle...have been reported from carbonatites in Ravalli County, Montana (Hess and Trumpour, 1959), at Mbeya in |  | | Book | | sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...known (e.g. the Montana Tunnels deposit, Obelisk Mine). The former locality contains disseminated pyrite...km from Balkhash (city). It cropped-out in a low hill of heavily silicified rocks surrounded by Cainozoic...joints ~~jr-*~z?Z. Joint pattern ÎŻ Quarts veins ft Mine; fr-iron, Cwcefiper, m U.S. Homestead mmmww** Vehicle...accumulated in endocontact stockworks. The small Jessie mine in the Breckenridge field (about 2 t Au; Lovering |  | | Book | | carbonatitic-alkaline province outcropping on the Kenya-Uganda border which have recently received significant...domain characterized East Africa from Madagascar and Kenya-Ethiopia to northeastern Sudan. It represents the...Popoff 1988a). Like the Atlantic Benue trough, the Kenya-Sudan Mesozoic trends could correspond to a failed...Segoufin and Patriat 1981; Mougenot et al. 1986). The Kenya-Sudan Mesozoic troughs hypothetized above could...East-African rift. This suggests that the Mesozoic NW-SE "Kenya-Sudan" rift-system has been reactivated, similarly |  | | Journal (article/letter/editorial) | | production came entirely from the Mountain Pass mine (California), which provided ~4% of the worldâs...in Brazil [17,18]; Tomtor in Russia [19]; Mrima Hill in Kenya [20]; Mabouni in Gabon; and several other...is 18 km southeast of Zaozhuang City in Weishan County, Shandong Province, within the Luxi tectonic block...Granite, basalt, rhyolite, syenite, carbonatite Microcline, quartz, biotite, aegirine, aegirineâaugite,...fault Quartz diorite, syenite, carbonatite Microcline, quartz, biotite, aegirine, aegirineâaugite, |
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