 | | Report (volume) | | parental or derivative ? 85 DAWSON, J. B. The kimberlite clan: relationship with olivine and leucite lamproites...TARNEY, J. & JORON, J. L. Geochemistry of ocean island basalts from the South Atlantic: Ascension, Bouvet...lavas and associated granite xenoliths of Ascension Island 269 FITTON, J. G. The Cameroon line, West Africa:...Outline of the petroIogy of the Kenya rift alkaline province 293 MACDONALD,R. Quaternary peralkaline silicic...petrochemistry of the northern part of the Chilwa alkaline province, Malawi 335 BOWDEN, P., BLACK, R., MARTIN, R |  | | Report (issue) | | these related projects: Chidliak View project Kimberlite Volcanology View project All content following...requested enhancement of the downloaded file. ft* Province of British Columbia Ministry of Energy, Mines...1987-17 EMPR c.3 OPEN FILE 1987-17 0005076453 Province of British Columbia Ministry of Energy, Mines...previously poorly documented alkaline igneous province is present in the eastern Canadian Cordillera-...syenites, some ijolite series rocks (?), one kimberlite locality and numerous ultramafic and lamprophyric |  | | Book | | Introduction COMPLEXES By P. J. WyLuir The Duke Island ultramafic complex, southeastern Alaska By T. N... By P. J. WYLLIE A review of the geology of kimberlite By J. B. DAwson Introduction Definition Field...kimberlites Emplacement of kimberlite World distribution of kimberlites Age of kimberlite Tectonic environment...251 251 253 258 259 261 Contents IV. V. Kimberlite pipes of northeastern Arizona A. Introduction...emplacement Bit Age Geochemistry and origin of kimberlite A. B. C. D. 9. II. E. Comparison with other |  | | Report (chapter) | | cinder cones, dykes, sills and diatremes. Whereas kimberlite diatremes tend to be carrot shaped, the shape...to melting. In contrast with alkali basalt and kimberlite melts which are apparently produced from the...Prairie Creek, Murfreesboro, Arkansas, from a kimberlite (albeit anomalous) (Miser & Ross 1923; Bolivar...far discovered, dwarfing many of the S African kimberlite pipes (typically 20-80 ct per 100 tons in grade.../ NHB(DII 9 9 MUR FOR ]W 9 HM 9 CARBONATITES KIMBERLITE A 9 SANDSTONES t i l ~ N 9 NSW -- SHALES ULTRAMAFIC |  | | Book | | past tectonic environments (e.g. mid-ocean ridge, island arc) from the compositions of ancient igneous rocks;...subduction-related volcanic rocks is shown in Fig. 1.6. In many island arcs, the potassium content of volcanic rocks increases...0 tion 55 ssocia line a -alka calc Low-K (island 50 line o ass sociation arc tholeiite) as 60...(e.g. mid-ocean ridges, island arcs, back-arc basins, intraplate oceanic islands, large igneous provinces...basaltā (often abbreviated to āMORBā) and āocean-island basaltā (OIB) being obvious examples. As we shall |  | | Book | | Chapter 22. Sediment Trails in Tectonically Active Islands: Heavy Minerals in use in New Zealand . . . . ...46. Diamonds and Associated Heavy Minerals in Kimberlite: A Review of Key Concepts and Applications ....various geochemical regimes in Denmark and the island of Helgoland. These include Triassic red beds with...of particles from the Roman-Campanian Volcanic Province may also have contributed. Durn et al. conclude...analysed prehistoric ceramics from a series of islands in Paciļ¬c Oceania and discovered a diverse array |
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