 | | Journal (article/letter/editorial) | | whole rock isochrons for the Monchique and Mt. Kenya complexes, together with a series of 87Sr/86Sr ratios...lineage is represented in the present study by Mts. Kenya and Kilimanjaro, the "carbonatitic" lineage by Mt...the dissected complexes of Kisingiri (Rangwa), Jombo Hill, Ruri and Homa Mtn. Mt. Meru, like Moroto in...Samples The samples from Monchique, Mt. Kenya and Jombo Hill include examples of all major rock-types...Baker (1967) for Mt. Kenya, Searle (1952) for Mt. Elgon and Baker (1953) for Jombo Hill. Few samples were |  | | Book | | in Commonwealth Countries United Kingdom Ghana Kenya Malawi Rhodesia Sierra Leone Tanzania Uganda Zambia...nepheline-bearing rocks in parts of Uganda and Kenya page 62 Figure 6 Nepheline-syenite occurrences...solution. In the case of potash feldspar, e.g. orthoclase, this reagent forms a deep yellow precipitate...high-temperature form, occurs in volcanic rocks, and orthoclase, another monoclinic variety, and microcline (triclinic)...when the albite is subordinate in amount to the orthoclase (or microcline) and antiperthite when this relationship |  | | Report (issue) | | Report No. 45 COLONY AND PROTECTORATE OF KENYA MINISTRY OF COMMERCE Ä 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...Rusinga Island 49 Fig. 6—Geological section of Kiahera hill, Rusinga Island 52 Fig. 7—Sketch section of the...1,400 square miles of South Nyanza, in western Kenya, on the shore of Lake Victoria! The land area is...part of the south-west quarter of Degree Sheet 41 (Kenya), corresponding with the Directorate of Colonial |  | | Book (edition) | | 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...Cove, Arkansas (Erickson and Blade, 1963), Iron Hill, Colorado (Olson and Wallace, 1956), Mountain Pass...1955), L. J. Fick and C. van der Heyde (1959). Kenya: B. H. Baker (1953), G. L. Coetzee and C...and the core carbonatite is eccentric, as at Iron Hill, Colorado, or Songwe, Nyasaland. It is not to be |  | | Report (chapter) | | commonly coexist with 'evolved' minerals (albite + orthoclase, quartz). Four welldefined 'branches' of the...the Arrow Peak dyke, Montana, variously called 'orthoclase-camptonite' (Rosenbusch 1897), 'minette' (Pirsson...Spain (Vitrac-Michard et al. 1977); 15 sannaite, Jombo, Kenya (Rock 1976); 16 monchiquites, Hopi, U.S.A. (Powell...(Powell et al. 1966); 18 alnoitic rock, Rangwa, Kenya (Rock 1976); 19 damtjernites, Fen, Norway (Griffin...1953. The alkaline igneous complex of Jombo Hill. Geol. Surv. Kenya Rep. 24, 32-48. BARNES, R. P., ROCK |  | | Journal (issue) | | the Colonies With appende,d summary reports on: Kenya . Uganda • Tanganyika . • • • • • • Northern...Resources COLONIAL GEOLOGICAL ABSTRACTS Part I .-Kenya . • • • • •• Vll ••• 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) | | (English). Microprobe analyses (1) from Alkalic rocks, Kenya. AENIGMATITE. Ike, (J. African Earth Sci. 3, 101-105)...Microprobe analyses (23) from Franklin and Sterling Hill, N.J. Partial solid solution with chondrodite, ALLEGHANYITE...^Mn 3.i7M8-| ,68 Zn 6 19 Fe O 02^ from Sterling Hill, N.J., monoclinic, P2 1/b, a O27, b 10.6^3, c 8...(1981)(English). Electron probe analyses (2) from peridotite, Kenya. AMPHIBOLE. Ivanitskii, et al., (Problem Kristallokhim...(1984). Microprobe analyses (7) from gneisses, Kenya. AMPHIBOLE. Miyano and Klein (Kozan Chishitsu 33 |  | | Report (volume) | | 273 BAKER, B. H. Outline of the petroIogy of the Kenya rift alkaline province 293 MACDONALD,R. Quaternary...peralkaline silicic rocks and caldera volcanoes of Kenya 313 WOOLLEY, A. R. & JONES, G. C. The petrochemistry...on the peralkaline silicic central volcanoes of Kenya and also favours an origin by crystal fractionation...pyroclastic deposits around central volcanoes in Kenya often show striking variations in the abundance...on the peralkaline silicic central volcanoes of Kenya and also favours an origin by crystal fractionation |
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