 | | Journal (article/letter/editorial) | | morphology from volcanic carbonatites in Tanzania, Kenya, Greenland, and India T. DEANS 2o Grove Park Road...identifications of similar magnetites from four localities in Kenya, one in Greenland, and one in India. Despite the...also spelled Galappo) lies at the foot of the volcano Kwaraa (also Kwaraha, or Ufiome), one of several...TINOIERET 3~ o / 0~ eNakuru 3t. L.NaivashaQ Kenya "~"-..~ l_.Mag,~li~ Tanzania L.Natron /2";OLDOINYO...nephelinite/carbonatite volcanoes (underlined) in Tanzania and Kenya. The carbonatites occur at the south-eastern foot |  | | Journal (article/letter/editorial) | | volcanos are known in the East African rift system in Kenya, Uganda, and Tanzania. Although some of these were... The eroded cinder cone of the gigantic Elgon Volcano is as much as 85 km in diameter and 3.5 km in height...height. The eroded caldera of the Napak Volcano originally ex ceeded 50 km in diameter and 3.5 km in...in height [ 1 2 ] . The Kizingiri Volcano must once have had a cinder cone more than 50 km in diameter...pyroxene, magne tite, forsterite, phlogopite or biotite, apatite, accessory pyrochlore and baddeleyite |  | | Journal (article/letter/editorial) | | the c~bon~~s from ejec~menta of the Laacher See volcano analyzed by TAYLORet aE. (1967) suggests a mectn...in two belts, an eastern belt along the Uganda-Kenya border, and a western one along the Uganda-Congo...montioellite-magnetite sovite c.g. sodepyroxene-biotite sovite flow layered light and dark grey sdvite...TJXE KA~O~DO R~~wA, HOMA MOUXT~, RIFT, WESTERN KENYA: AXD THE RURI Gaoaa Six carbonatite complexes...South Ruri, Homa Hountain, Buru Hill and the Tinderet Volcano. Samples were collected from Rangwa, North |  | | Journal (article/letter/editorial) | | nonessential minerals (e.g. biotite) are present, this can be reflected in the name as ‘biotite-calcite carbonatite’...[(Na,K,Cax)2–x(CO3)], known from Ol Doinyo Lengai volcano (Tanzania). A refinement to the IUGS chemical classification...Mountain, Kenya (Clarke 4 G. J. SIMANDL AND S. PARADIS and Roberts 1986); Tinderet, Kenya (Deans and...Lengai, Tanzania, which is considered an active volcano). Frequency plots of carbonatites with well-established...documented carbonatite provinces: (a) East Africa (Kenya, Uganda, Tanzania, and one occurrence in Zambia); |  | | Journal (article/letter/editorial) | | 12 – 9 Ma) is poorly represented in the Southern Kenya Rift, though magmatic activity is recorded in the...– 4 Ma) is particularly well-represented in the Kenya Rift. Large-scale magmatic events include: commencement...Divergence (NTD) and Mt. Kenya, Rungwe Volcanic Province, and the Southern Kenya Rift. The Stratoid Phase...magmatic events at ca. 3 to 2.5 Ma within the Southern Kenya Rift and NTD. This phase manifests as basalts and...that flood the newly formed graben in the Southern Kenya Rift. This phase also correlates with the main phase |  | Mikhailova, Julia A., Kalashnikov, Andrey O., Sokharev, Victor A., Pakhomovsky, Yakov A., Konopleva, Nataly G., Yakovenchuk, Victor N., Bazai, Ayya V., Goryainov, Pavel M., Ivanyuk, Gregory Yu. (2016) 3D mineralogical mapping of the Kovdor phoscorite–carbonatite complex (Russia) Mineralium Deposita, 51 (1) 131-149 doi:10.1007/s00126-015-0594-z | Journal (article/letter/editorial) | | central-type, multiphase volcano– plutonic complex that intruded/erupted through Archean biotite (granite) gneiss...exocontact zone of the massif comprises the sequence of biotite gneiss–fenitized microcline-richterite-bearing...relation to the Ol Doinyo Lengai, Kerimasi, and Tinderet volcanic carbonatite complexes (Hay 1983; Gittins...RL (1983) Natrocarbonatite tephra of Kerimasi volcano, Tanzania. G e o l o g y 11 : 5 9 9 – 6 0 2 . d...Wenzel T, Vennemann T, Markl G (2013) Tinderet volcano, Kenya: an altered natrocarbonatite locality? |  | | Report (issue) | | IRELAND ISRAEL ITALY JAMAICA JAPAN JORDAN KAZAKHSTAN KENYA KOREA, REPUBLIC OF KUWAIT KYRGYZSTAN LAO PEOPLE’S...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 |  | | Journal (article/letter/editorial) | | Germany ABSTRACT Halogen abundances in apatite, biotite, amphibole, titanite, and other halogen-rich minerals...Tamazeght complex (Morocco) are presented. Apatite, biotite, and amphibole show the highest F contents in the...(restricted in syenites). The Cl contents of apatite, biotite, and amphibole are highest in the intermediate...evolved rocks, although Cl contents of apatite, biotite, and amphibole are low. We suggest that the early...subsequent crystallization of Cl-poor apatite, biotite, and amphibole. Late-magmatic eudialyte in some |  | | Book (edition) | | field work on the Iron Hill complex of Gunnison County, Colorado, in 1912-1913. Although his final results...1955), L. J. Fick and C. van der Heyde (1959). Kenya: B. H. Baker (1953), G. L. Coetzee and C...by a suitable mineral prefix: such as biotite sOvite (biotite, 10 to 40 per cent), apatite sdvite (apatite...Tanganyika. b. In generally unaltered rocks: Ravalli County, Montana, and Verity, British Columbia. Similar...elements. Aegirine, Na amphibole and/or aenigmatite Biotite, diopside, augite, Main foids: Nepheline, sodalite |  | | Book | | northern portion in northern Tanzania, western Kenya, and eastern Uganda where the Nyanzian System, composed...regions; the Ebolowa-type granites have yielded biotite and zircon Pb/« ages of 2200-2500 m.y. (Lasserre...given a similar zircon Pb/a age of 2680 m.y. and a biotite age of c. 2000 m.y. (Bonhomme, 1962). Comparable...and discordant granites that have yielded Rb-Sr biotite ages in the 1950-2000 m.y. range suggesting that...and THE STRUCTURAL FRAMEWORK OF AFRICA 7 biotite ages from the granites fall in the 1450-1700 m |  | | Book | | fossil vertebrates in tuffs of the spectacular volcano that I had mapped in 19909. Thereafter, from 1959...sedimentological and palaeontological studies in the Kenya Rift Valley project. This, indeed, worked exceedingly... GREGORY RIFT VALLEY TANZANIA; OLORGESAILIE, KENYA I51 10. MARY D, LEAKEY. Olduvai Gorge 1911-1975:...SHACKLETON. Geological Map of the Olorgesailie Area, Kenya 171 12. 13. GLYNN LL. IsAAc. The Olorgesailie...Contents B. Tue Lake Barinco Basin, KENYA 14. GREGORY R. CHAPMAN Basin, Kenya & MAUREEN BROOK. Ghronostratigraphy |  | | Book (volume) | | for Prehistory and Palaeontology, Kenya National Museum, Nairobi, Kenya. E.J.Topp Department of Zoology...both from the Upper Miocene site at Fort Ternan in Kenya. These are respectively by Dr. S. Churcher and Dr...Miocene rodent fauna of East Africa, mainly from Kenya sites such as Rusinga and Songhor, but also including...Two new Upper Miocene Giraffids from Fort Ternan, Kenya, East Africa: Palaeotragus primaevus n. sp. and... NEW UPPER MIOCENE GIRAFFIDS FROM FORT TERNAN, KENYA, EAST AFRICA: Palaeotragus primaevus n. sp. and |
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