 | | Report (issue) | | activity and geology of the northern sector of the Kenya Rift Valley British Geological Survey Research...activity and geology of the northern sector of the Kenya Rift Valley P N Dunkley, M Smith, D J Allen and...activity and geology of the northern sector of the Kenya Rift Valley P N Dunkley, M Smith, D J Allen and...springs along its western shores. Geographic index Kenya Suf>jecr index Geothermal exploration, geology...activity and geology of the northern sector of the Kenya Rift Valley. British Geological Survey Research |  | Black, Stuart, Macdonald, Ray, Barreiro, Barbara A., Dunkley, Peter N., Smith, Martin (1998) Open system alkaline magmatism in northern Kenya: evidence from U-series disequilibria and radiogenic isotopes. Contributions to Mineralogy and Petrology, 131 (4) 364-378 doi:10.1007/s004100050398 | Journal (article/letter/editorial) | | Smith Open system alkaline magmatism in northern Kenya: evidence from U-series disequilibria and radiogenic...(<10 ka) and trachytes from the volcano Emuruangogolak in the Kenya Rift Valley. The basalts are mildly...conduits closely spaced around the summit of the volcano. Introduction The nature and eciency of dierentiation...Azores, that the time from formation of a parental alkali basalt by partial melting of mantle to generation...evolution of the basanite-phonolite Laacher See volcano in Germany. Dierentiation of parental basanite |  | | Journal (article/letter/editorial) | | SALIC ROCKS FROM THE QUATERNARY VOLCANO PAKA, GREGORY RIFT, KENYA J.S.C. SCEAL and S.D. WEAVER East...rock samples from the Quaternary alkali basalt-trachyte volcano, Paka, are presented. They show that the...Introduction Extensive parts of the Gregory Rift Valley in Kenya were characterised from the Pliocene onwards by...argument. The constitution of the Quaternary volcano Paka (0°50'N, 36 ° 10'E) typifies this relationship...undissected volcano, of about 25 per cent basalt, 5 per cent mugearite and 70 per cent trachyte. Paka has been |  | | Journal (article/letter/editorial) | | trachy~ic liquid in mngmz chambers under each volcano, is proposed for these. Separ'ation of a small...Londiani at the ju~letion of the Kenya and Kavirondo Rift Valleys., Kenya (Fig. 1)(Jones 1975). On Kilombe...boulders are found on the outer slopes of the volcano and in sediments at its foot formed by erosion...Coarse-grained syenites These have about 90% of alkali feldspar as interpenetrating carlsbad twinned stubby...the edges of the feldspars. Interstitial to the feldspar are amphibole, aegirine and a little aenigmatite |  | | Journal (article/letter/editorial) | | Fractional Crystallisation and the Petrology of Dunedin Volcano R.C. Price Department of Geology, University of...the range in rock types making up the Dunedin volcano has developed by crystal fractionation processes...variants on these series. The phonolitic rocks of the volcano are low pressure differentiates derived by fractional...fractional crystallization, involving feldspar, as end member products in all the series outlined above...above. Quartz normative trachytes of the volcano appear to be differentiates from a distinct saturated or |  | | 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 |
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