 | | Journal (article/letter/editorial) | | phonolitic lavas with late tongues of peralkaline phonolite glass. Chemically, the lava series is always undersaturated...of the alkalic basalt . (-+ trachyphonolite -+ phonolite -+ trachybasalt -+ trachyandesite -+ trachyte...but including some of phonolite, are abundant in Anaga and Teno, and phonolite plugs intrude the lavas of...of Anaga. As no phonolite lavas have been reported from the Ancient Series it seems probable that this...this minor phase of phonolite intrusion was contemporaneous with later, salic volcanicity in the Vilaflor |  | | Journal (article/letter/editorial) | | in basalts from part of the Nigerian Cenozoic province By J. B. WRm~T Department of Geology, Ahmadu Bello...a few eroded plugs. The Nigerian rocks are regarded as a practically extinct sub-province within a larger...larger Gulf of Guinea alkaline province, dominatecl by the voluminous and still active vulcanicity of the...crystals in a basalt plug within the Nigerian sub-province have rounded edges and more caleic overgrowths...principal features of Nigeria's Cenozoic alkaline province are summarized in fig. 1. The Benue trough is |  | | Journal (article/letter/editorial) | | Geology, Universite de Montreal, Montreal 101, Province Quebec, Canada JACQUES NOUGIER Department of Geology...alkali trachyte (7), nepheline trachyte (T-O), and phonolite (4>); 4 = plutonic body; 5 = Holocene trachyte...adventive cinder cones and basanitic domes, phonolite plugs, trachyte domes, and rhyolite flows. T h e...the R o n a r c h Peninsula, and numerous phonolite plugs are found both here and on the Jeanne D'Arc...within the de C o u r b e t Shield. Phonolite Plugs Small plugs of phonolite occur on the Ronarch Peninsula |  | | Book | | Resources Division Nepheline —-Syenite and Phonolite HMSO 15s Od Digitized by the Internet Archive...MINERAL RESOURCES DIVISION NephelineSyenite and Phonolite J. B. ALLEN, = fips B.Sc., Ph.D., and CHARSLEY...Research Council Contents Nepheline-Syenite and Phonolite Introduction Chemistry, Mineralogy and Classification...of Nepheline-Syenite and Phonolite Occurrences Nepheline-Syenite and Phonolite in Commonwealth Countries... Australia New Zealand Nepheline-Syenite and Phonolite in Foreign Countries Czechoslovakia Finland France |  | | Book | | ........................................... 206 Peru...................................................numbered rectangle rather than a dot. State, province etc. These are quoted for a number of countries...helped with useful i n formation on the V la co Province ments suggested by my colleague D.R.C. Kempe,...five agglomerate vents, about 75 dykes and sm all plugs, as well as several sills, within a n a rea of 4...types are nephe linite, basani te, basalt and phonolite. Oli vine nephelin ites a re t h e most abundant |  | | Report (chapter) | | possible linkage with the Deccan Large Igneous Province JYOTI CHANDRA1, DEBAJYOTI PAUL1*, SHRINIVAS G...Abstract: The genetic connection between Large Igneous Province (LIP) and carbonatite is controversial. Here,...interrelationship with the associated Large Igneous Province (LIP) (Ernst & Bell 2010). Although carbonatites...Lanyon 1998; Bell 2001); (III) Maimecha Kotui province (250–220 Ma) with carbonatites associated with...bodies associated with the Central Iapetus Magmatic Province (615– 555 Ma) of eastern Laurentia (St-Honore: |  | Alemayehu, Tewodros, Leis, Albrecht, Eisenhauer, Anton, Dietzel, Martin (2011) Multi-proxy approach (2H/H, 18O/16O, 13C/12C and 87Sr/86Sr) for the evolution of carbonate-rich groundwater in basalt dominated aquifer of Axum area, northern Ethiopia. Geochemistry, 71 (2) 177-187 doi:10.1016/j.chemer.2011.02.007 | Journal (article/letter/editorial) | | volcanic rocks belong to the Axum–Adwa trachyte–phonolite plugs and extend to the trachyte–rhyolitic rocks...elevated topography that consists of fractured phonolite and trachyte volcanoes. Similar to the trap series...the highlands (Ayenew et al., 2008), the volcanic plugs have high transmissivity, low storativity, and localized...(PCO2 ). mostly in veins in the basaltic units. Phonolite rocks contain abundant nepheline and Na-rich feldspar... the chemical composition of typical basalt, phonolite, and trachyte samples of the study area are given |  | | Report (volume) | | the Malani Igneous Suite and Tertiary Alkaline Province of western Rajasthan Dr. S.K. Shushan • Dr...granites occurring as plutons, ring dykes, bosses and plugs form the second phase. The third phase is intrusive...and textures. The younger magmatic event of the province in Rajasthan is represented by hyperalkaline (Tertiary)................................ GEOLOGY OF THE PROVINCE Granites . . . ....... ...................... .................... Alkaline rocks of the province Carbonatites ......................... . . |  | | Journal (article/letter/editorial) | | in Miocene times with intrusion of trachyte-phonolite plugs which have been dated by Grant et al. (1972)...between 22–11 Ma and continued with the magmatic province of the Biu Plateau. According to Turner (1978)...Recent volcanics also include one occurrence of phonolite, which contains inclusions of spinelperidotite...xenoliths (1 cm) Koroko 1050’22 N 1156’70 E Phonolite, small xenoliths Krater SW Pelamabelu Hill (Pela...might shed some light on the genesis of ilmenite, albite-rich plagioclase, zircon and corundum megacrysts |  | | Book | | specimenis 5.5 cm high. Henkel collection. 44 Albite Analcime Ankerite Apatite Augite(titanian) Biotite...Alamosite Gerdtremmelite* Luzonite Chrysocolla Albite Macphersonite Germanite* Chudobaite* Almandite...where it was MineralsKombat Actinolite Aegirine Albite Alleghanyite Anglesite Anhydrite Aragonite Arsenopyrite...localdifferencesin mineralisation, MineralsCopperValley Ajoite Albite Aragonite Azurite Beyerite Bismite Bismuth Bismutite...Omaruru Area, Northern Central Zone of the Damara Province. - Unpubl. rep., Geol. Surv. Namibia, 48pp. in |  | | Report (volume) | | 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...crystallization history of the Velasco alkaline province, eastern Bolivia 403 BARKER, D. S. Tertiary...alkaline magmatism in southern Greenland: the Gardar province 449 LARSEN, L. M. & SORENSEN, H. The Ilimaussaq...alkaline province in Malawi, at the southern end of the rift, is an essentially intrusive province in which |  | | Report (issue) | | Erdosh, George, 1979, The Ontario carbonatite province and its phosphate potential: Economic Geology...from the Peru margin during ODP Leg 112, in Proceedings of the Ocean Drilling Program, Peru continental...of the Drilling Vessel JOIDES Resolution, Callao, Peru to Valparaiso, Chile, sites 679-688, 20 October...Phosphorites in the Mantaro Phosphate Field, central Andes, Peru, in Notholt, A.J.G., Sheldon, R.P., and Davidson...deposis of the Hazara Division, North West Frontier Province, Pakistan, in Notholt, A.J.G., Sheldon, R.P., |  | | Book | | substantial felsic volcanoes erupting trachyte and phonolite magmas. Asa result, large-scale explosive eruptions...involved the emplacement and near collapse of a phonolite cryptodome. Eruption on the flank of the prehistoric...La Graciosa island in the background from the Portillo de Guinate. The lava flows in the foreground are...and thinning southeast is cut by a prominent phonolite plug, Risco Blanco (“white crag”; note confirmation...site) is formed by a thick sheet intrusion of phonolite, emplaced right at the end of the Miocene (shield-stage) |  | | Book | | RELATIONSHIP OF THE MALAWI CARBONATITEALKALINE PROVINCE AND THE LUPATA-LEBOMBO VOLCANICS 237 A, R. Woolley...Gass 14 THE EVOLUTION OF THE TIBESTI VOLCANIC PROVINCE, EASTERN SAHARA P. M., Vincent : 15 THE STRUCTURAL...concentrations. Such was the study of the Nuanetsi Igneous Province in Rhodesia. The ring complexes there appeared...200. The parent magma of the British Tertiary Province. Summ. Progr. geol. Surv. G.B., Pt. 2 (for 1930)...data is given by Cahen (Chapter 6). In the Kasai Province (Figs. 1 and 2) a number of crystalline rock units |  | | Book | | this to the volcanoes of the Madeira volcanic province and explain, in some detail, the origin of many...develop later, a vast tholeiitic flood basalt province became active, extending over more than 10 million...This large igneous province (LIP), known as the Central Atlantic Magmatic Province (CAMP), evolved into...volcanism formed a large igneous province, the Central Atlantic Magmatic Province (CAMP). This volcanic region...especially the eastern ones. THE CANARY VOLCANIC PROVINCE 7 35°N CRETACEOUS MAGNETIC QUIET ZONE M0 MADEIRA |  | | Report (issue) | | including, perhaps, places in the Basin and Range province of the United States. Eight minerals or mineral...differentiated granite in northwestern Zhejiang Province, China, near some of that Province’s large, s...Tanzania) 18 Basalt 130 Andesite 77 Andesite 85 Phonolite 14 Phonolite (Eastern Rift, Kenya and Tanzania) 2 Trachyandesite...at about 140 °C, Berbes subdistrict, Asturias Province, Spain. equiv. wt. % NaCl: 83; cations: 34 1...at the Xianghuapu Mine in Linwu County, Hunan Province, China (Yuzhou, 1990); and at the Yaroslavskoye |  | | Book | | across and, along its southem margin. satellite plugs of pyroxenite, dunite, syenite and nepheline syenite...marble are present (Blaine, 1977). Plutons and plugs of pink to white strongly gneissic granodiorite...adjoin•?g ~ne1ss 111 the east (Menge, 1986). A few plugs of t1tamferous magnetite occur in the complex and...are a characteristicassociation. Small irregular plugs and dyke-like bodies of reddish fineto medium-grained...amphibolite. The layered rocks are intruded by dykes. plugs and sills of pegmatoid amphibolite, coarse-grained |  | | Book | | along the rift but at a distance from it. The phonolite plugs and other intrusive forms along the East African...they are rift related. Phonolite is a name used for igneous rocks of the phonolite-nepheline syenite group...smaller forms of igneous intrusives such as stocks, plugs, sills, dikes, laccoliths, pipes, chimneys, and... THE Older batholiths: Stocks: Pipes: Chimneys: Plugs or stubs: Dikes: Sills: Laccoliths: Lopoliths...carbonatite. THE GREAT AMERICAN RIFT 7 Phonolite, nepheline syenites, and alkalic rocks, such as |  | | Report (issue) | | m thick covered the Southern Rocky Mountain province, and the last of a series of Cretaceous seas was...basins. Orogeny began in the southwest part of the province before marine deposition ended in the northeast...last major Laramide uplift unit to appear in the province, began to rise in early Eocene time, but it did...diagonally across major tectonic units of the province. The Colorado mineral belt constitutes an inner...Tertiary time. As will be shown, the mountain province was at or very near sea level at the beginning |  | | Report (issue) | | Siberian flood basalt province in Russia, which is the largest flood basalt province in the world.........complexes that are part of the Nikolai large igneous province.................................................lithium-cesium-tantalum light-emitting diode large igneous province lowest observable effect limit log of oxygen fugacity...Antimony ore and concentrate Other 6% Other 11% Peru 3% China 23% Mexico 12% Italy 45% China 74%...States— Antimony The Xikuangshan deposit in Hunan Province, China, is China’s leading source of antimony |  | | Book | | gabbros 5.1.10 Younger granites 5.1.11 Trachyte plugs (post-Hammamat felsites) 5.1.12 Swarm dikes 5.1...Formation sands established a new hydrocarbon province in Egypt. Subsequent discoveries led to the delineation...Lower Miocene reservoirs. Yet a new hydrocarbon province was proven in Egypt in 1997 when Apache (50% with...potential of the Sirte Basin as a hydrocarbon province (today the Sirte Basin is known to contain about... It represents the second largest hydrocarbon province in Egypt. Active exploration since the late 1960s |
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