 | | Journal (article/letter/editorial) | | nodules associated with alkaline olivine basahs, Kenya By E. P. SAGGERSON,Durban*) With 9 figures and 8...basalts and associated eclogite nodules from southern Kenya are described and attention drawn to the chemical...nodules associated with alkaline olivine basalts, Kenya Is eo~epa~aa~e nopo~ax E)}EHOfi t{eHr~r[. ABTOp...Kapiti P h o n o l i t e s Scale 0 I. . . . . 2 Chyulu B a s a lBt Sa as na dn i t e s ~ 20 I 40MILES...Cainozoic volcanic rocks in the Simba-Kibwezi area, Kenya. 891 Aufsatze where basaltic magma was generated |  | | Journal (article/letter/editorial) | | by the conversion of nepheline and sodalite to analcime and the growth of aegirine on arfvedsonite. These...sulphides. Late-stage or secondary minerals include analcime, natrolite and Fe-hydroxides. Table 1 shows the...opposite is the case. Albite is partly altered to analcime. Nepheline phenocrysts are present in most samples...grains (Fig. 2f), which are partly altered to analcime. Sodalite forms anhedral crystals in the groundmass...with microcline, sodalite has been replaced by analcime. Olivine phenocrysts are in most cases rimmed |  | Marks, Michael, Vennemann, Torsten, Siebel, Wolfgang, Markl, Gregor (2004) Nd-, O-, and H-isotopic evidence for complex, closed-system fluid evolution of the peralkaline Ilı́maussaq intrusion, south Greenland. Geochimica et Cosmochimica Acta, 68 (16) 3379-3395 doi:10.1016/j.gca.2003.12.008 | Journal (article/letter/editorial) | | ⬃12 cm in size. (k) Late-stage aegirine-albite-analcime vein intruding naujaite. Length of hammer is approximately...ntr ⫽ natrolite, ol ⫽ olivine, qtz ⫽ quartz. analcime. One fine-grained agpaitic rock type (lujavrite...Millimeter- to cm-thick veins of aegirine, albite and analcime are abundant in the whole complex. They crosscut...towards the center of the vein, where albite and analcime are the dominant minerals. Similar aegirine-rich...rift-related alkaline volcanism-the Chyulu hills volcanic province, Southern Kenya. J. Petrol 42, 765–787. Ilı́maussaq |  | | Journal (article/letter/editorial) | | are rare sulfides. Various zeolites (thomsonite, analcime, harmotome and chabazite) are late stage products...al., 1998; Späth et al., 1996). Data fields: SW Kenya: le Roex et al. (2001); Ugandan kamafugites: Rosenthal...the Brome alkaline igneous complex, Monteregian Hills, Quebec: mechanism of substitution. The Canadian...Kurszlaukis, S., Franz, L., Brey, G.P., 1999. The Blue Hills intrusive complex in Southern Namibia — relationships...2001. Lithospheric thickness beneath the southern Kenya Rift: implications from basalt geochemistry. Contributions |  | | Report (issue) | | upper-mantle low-velocity anomaly beneath Ethiopia, Kenya, and Tanzania: Constraints on the origin of the...alkaline magmatism in central Africa—The Meidob Hills (W Sudan): Chemical Geology, v. 157, p. 27–47, doi:10...Resources for Development, P.O. Box 632, 00618 Nairobi, Kenya ABSTRACT Assessments of the extension directions...upper-mantle low-velocity anomaly beneath Ethiopia, Kenya, and Tanzania: Constraints on the origin of the...to broadband seismic data recorded in Tanzania, Kenya, and Ethiopia. (1) Joint inversions of receiver |  | | 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...Trans-Pecos Texas 415 EBY, G. N. The Monteregian Hills and White Mountain alkaline igneous provinces, eastern...on the peralkaline silicic central volcanoes of Kenya and also favours an origin by crystal fractionation...penetrated than oceanic lithosphere. The Monteregian Hills and White Mountain provinces of eastern North America |  | | Journal (article/letter/editorial) | | Barber, Christopher. The geochemistry south Nyanza, Kenya 119-133 l8(2) [198S]: 81-95 Banno, Shohei. see...Cozzupoli, D., Federico, Harkerite from the Alban Hills, Italy M., Fornaseri, M., Merlino, L/I genetic...Kaersutite megacrysts volcanic field, San Bernardino County, California J. H. D. Liquid immiscibility 23(l-2)...northeastern Azerbaijan volcanics (northwestern Iran) of analcime in the 12(3) [1979]: 187-198 Comin-Chiaramonti...D. see Lu, J. Fountain, J. C., Hedge, D. S. and Hills, A. Geochemistry complex, Wyoming and petrogenesis |  | | Book | | 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...stratigraphy of the area west of Lake Baringo, Kenya 225 16. MARTIN H. L. PICKFORD. Geology, palaeoenvironments |  | | Report (issue) | | thermotectonism in the easternmost Wyoming craton (Black Hills, South Dakota): American Mineralogist, v. 90, p...some quartz and very small amounts of mica and analcime were detected as impurities in the diffractograms...counts); the x-axis is the Bragg angle (2θ). A—analcime; K— kaolinite; M—mica; P—pyrophillite; Q—quartz...rift-related alkaline volcanism—The Chyulu Hills volcanic province, southern Kenya: Journal of Petrology, v. 42...bounding faults of the basin. Stratigraphy: B—Barrens Hills; C—Cross Brook; CHF—Country Harbour fault; GH—Graham |
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