| | Journal (article/letter/editorial) | in a Nepheline-Syenite Inclusion From Tenerife, Canary Islands A.K. F e r g u s o n Department of Geology...inclusion found in an ignimbritic sequence f r o m Tenerife has revealed a variety of minerals which indicate...lavas. Introduction Syenitic inclusions f r o m Tenerife have been observed by m a n y workers (Jbr~mine...volcanology, geology and petrology of lavas on Tenerife has been published by Ffister etal. (1968). The...the lavas f r o m the Las C a n a d a s volcano (Tenerife) in greater detail and dem o n s t r a t e d that | | | Journal (article/letter/editorial) | (and phonolites) containing minerals such as eudialyte and rinkite, that is complex silicates of Zr,...alkali feldspars, arfvedsonite, aegirine and eudialyte, but the most highly developed, hyperagpaitic...alkali feldspars, and steenstrupine instead of eudialyte. During the late stages of crystallization, sodium-rich...agpaitic rocks, nepheline syenite, phonolite, eudialyte, rinkite, Ilfmaussaq complex. Introduction SOME...agpaitic rocks, such as sodalite, arfvedsonite and eudialyte, have been known for almost 200 years. They were | | | Journal (article/letter/editorial) | analysed undersaturated volcanic rocks from Tenerife, Canary Islands; fou~" of which are peralkaline. The objectives...Nepheline Aegirine-augite Aegirine Arfvedsonite Eudialyte Sphene Apatite Other 24.9 (Ne~sK%sQz,) ljolite...ljolite KUU 1 34.9 (Or, o) (Or6,) Orthoclase Eudialyte nepheline syenite Kola 3 35.4 (Orlo) 10.6 41.4...are eudialyte nepheline syenite (khibinites) and the third a nepheline syenite without eudialyte. Possibly...compositions are included in Table 1. In the two eudialyte-beafing samples, the feldspar occurs as microperthitic | | | Journal (article/letter/editorial) | the plinian deposits of Agua de Pau volcano (Sao Miguel, Azores Islands) F. RIDOLFI1, A. RENZULLI1,*...plinian fall deposits of Agua de Pau volcano (SaÌo Miguel, Azores Islands) are divisible into (1) silica-undersaturated...they have compositions reflecting those of the Agua de Pau trachyte magmas. The syenites are inferred to...syenites, the complex Zr-Ti silicate minerals, eudialyte and a laĂ venite-like mineral, crystallized interstitially...magma chamber, petrology, eudialyte, laĂ venite, REE-rich minerals, Agua de Pau, SaÌo Miguel, Azores | | | Journal (article/letter/editorial) | syenite in a subvolcanic magma system: Tenerife, Canary Islands JOHN A. WOLFF Department qlGeology, University...syenite in a subvolcanic magma system: Tenerife, Canary Islands. Lithos, 20: 207-223. ~ The late Quaternary...Quaternary phonolitic pumice deposits of Tenerife, Canary Islands, are the product of a periodically-tapped...late Quaternary phonolitic pyroclastic series o f Tenerife provides an unusual o p p o r t u n i t y to c... The petrography of the silica-undersaturated Tenerife volcanic rocks is summarised in Table Geologic | | | Report (issue) | Narss^arssuk, Greenland; traces of V, Sc, Mn. (2) Tenerife, Canary Islands; by electron microprobe. (3) Na 2 Ti 2...microcline, arfvedsonite, elpidite, loparite, eudialyte, astrophyllite, mangan-neptunite, lÂș avenite,...Cove, Hot Spring Co., Arkansas, USA. On Tenerife, Canary Islands. Name: After Johannes Theodor Lorenzen...°uorine-rich eucolite [eudialyte] in a nepheline-syenite inclusion from Tenerife, Canary Islands. Contr. Mineral | | Eby, G. N., Woolley, A. R., Din, V., Platt, G. (1998) Geochemistry and Petrogenesis of Nepheline Syenites: Kasungu-Chipala, Ilomba, and Ulindi Nepheline Syenite Intrusions, North Nyasa Alkaline Province, Malawi. Journal of Petrology, 39 (8) 1405-1424 doi:10.1093/petroj/39.8.1405 | Journal (article/letter/editorial) | Nepheline Syenite Intrusions, North Nyasa Alkaline Province, Malawi G. NELSON EBY1â, ALAN R. WOOLLEY2, VIC...ACCEPTED FEBRUARY 12, 1998 The North Nyasa Alkaline Province of Malawi consists of seven Late Precambrian intrusions...INTRODUCTION OIB-like source The North Nyasa Alkaline Province (NNAP, Bloomfield, 1970) of central and northern...Malawi, plus possible additional members of the province in southern Malawi (Tambani), Mozambique, Tanzania... 1. Location map for the North Nyasa Alkaline Province (NNAP) plutons and geological map of the Ilomba | | | Journal (article/letter/editorial) | interstitial glass in a xenolith from Tenerife, Canary Islands J.A. Wolff and J.B. T o n e y Department...interstitial glass in a xenolith from Tenerife, Canary Islands. Lithos, 29: 285-293. Interstitial glass...Quaternary phonolitic pyroclastic deposits of Tenerife, one of which contains 3.8% of compositionally...a typical glass-bearing interstitial patch in Tenerife nepheline syenite sample SX3. Mn-ilmenite, white;...to Wolff (1987) for a full description of six Tenerife nepheline-syenites, including the sample discussed | | Perchiazzi, N., McDonald, A. M., Gault, R. A., Johnsen, O., Merlino, S. (2000) THE CRYSTAL STRUCTURE OF NORMANDITE AND ITS CRYSTAL-CHEMICAL RELATIONSHIPS WITH LAVENITE. The Canadian Mineralogist, 38 (3) 641-648 doi:10.2113/gscanmin.38.3.641 | Journal (article/letter/editorial) | Nous avons rĂ©solu et affinĂ© la structure cristalline de la normandite provenant du fiord Amdrup, au Gro”nland...un rĂ©sidu R1 de 0.033 et 0.047, respectivement. La normandite fait partie du groupe de la cuspidine;...prĂ©cisĂ©ment, il sâagit de lâanalogue de la lĂ„venite avec dominance de Ca et de Ti. Par consĂ©quent, on...en termes de parois dâoctaĂšdres, liĂ©s entre eux par partage de coins et par lâintermĂ©diaire de groupes...niocalite. LâĂ©chantillon du fiord Amdrup fait preuve de zonation impliquant une variation importante des | | | | AND D. DEMAIFFE2 1 Section de GeÌologie Isotopique, MuseÌe Royal de lâAfrique Centrale, 3080 Tervuren...Laboratoire de GeÌochimie Isotopique et GeÌodynamique Chimique, CP160/02, UniversiteÌ Libre de Bruxelles...UniversiteÌ de La Rochelle, ILE, 2 rue Olympe de Gouges 17042 La Rochelle Cedex1, France 4 Laboratoire de GeÌodynamique...GeÌodynamique (LPGN)ââ, UniversiteÌ de Nantes, BP 92205, 2 rue de la HoussinieÌre, 44322 Nantes, France...for the crystallization of lorenzenite and a eudialyte-group mineral as replacement products of titanite | | | Journal (article/letter/editorial) | Montboissier, Puy-de-Dome, basalt, ultrabasic xenoliths, r53 Mont Dore, Puy-de-Dome, zircon, 79o Plan de la Tour...Tour, Maures, Var, zircon, 79o Puy Beaunit, Puy-de-Dome, basalt, ultrabasic xenoliths-, 153 A berdeenshire...clinopyroxene, titanomagnetite, leucite, rh6nite, 817 Volcan de Zaniere, Haute Loire, basalt, ultrabasic xenoliths...argentian mercurian tetrahedrite, 233 Spain (Espafia) Tenerife, Canary Islands, sahlite, aegirine, 8o5 Genthelvite...QUEENSLAND Mt. Goonneringerringgi, phonolite, eudialyte, pectolite, serandite, 853 New Zealand Aorangi | | | Report (issue) | (Ca; Ce)2 (Fe2+ ; Mn2+ )ZrSi8 O22 (OH; Cl)2 (?) Eudialyte c 2001 ° Mineral Data Publishing, version 1...Saint-Hilaire and near Saint-Amable, Quebec. From Tenerife, Canary Islands. Name: From the Greek for easily and... Borutzky (1988) Crystallochemical traits of eudialyte in the light of new structural data. Mineral....Optical and MĂossbauer study of minerals of the eudialyte group. Phys. Chem. Minerals, 18, 117{125. All | | | Report (issue) | ilmenite, apatite, zircon, amphibole, biotite, eudialyte, catapleiite, astrophyllite, rinkite, lorenzenite...Distribution: In Norway, on LÂș aven and the ArÂż Islands, in the Langesundsfjord. In Italy, from the Isle...Isle, Los Islands, Guinea. On Boa Vista Island, Cape Verde Islands. From Tenerife, Canary Islands. At Mont | | | Journal (article/letter/editorial) | Sinai, anal., 13 Aegirine, Nigeria, anal., 595; Tenerife, anal., opt., 805; Greenland, anal., 737 Aenigmatite... R.), and WILLIAMS (P. R.), An occurrence of eudialyte and manganoan pectolite in a phonolitic dyke from...Queenslaaad, 853 CARSWELL (D. A.), see JAVAWARDENA(D. E. de S.), 54I Cassagna mine, Liguria, Italy, volborthite...heulandite, 5oi DAVIS (G. R.), see ANGUS(J. G.), 481 DE SOUZA(J. V.), see BRINDLEY(G. W.), I41 Diaspore,...hydroxyapatite, crandallite, montgomeryite, 253 Eudialyte, Queensland, anal., X-ray, 853 EWlNG (R. C.), | | | Journal (article/letter/editorial) | found for the first time at Kilombe together with eudialyte, nacareniobsiteâ(Ce) and thorite. These latter...loss of Na from the less stable minerals such as eudialyte and nacareniobsiteâ(Ce). Analytical errors depend...Fayalite †1.0 Aenigmatite 0.5â3.0 Zircon <0.5 Eudialyte â Nacareniobsiteâ(Ce) â Chevkiniteâ(Ce) <0.5 Pyrochlore...(Amp) (sample K24); (e) interstitial crystal of eudialyte (Edl) (sample K16); (f) nacareniobsiteâ(Ce) (Ncr)...(Fig. 2d). In the sodalite-bearing syenites, eudialyte and nacareniobsiteâ(Ce) crystallized in cavities | | | Journal (article/letter/editorial) | of Copenhagen, Denmark Geochemistry of Some Eudialyte-Eucolite Specimens and a Co-Existing Catapleiite...diffraction, spectrographic and chemical methods of the eudialyte-eucolite group minerals from the nepheline syenite...Nephelinsyenit-Pegmatiten in Einklang. Introduction The eudialyte-eucolite group o f zirconium silicate minerals...compositional variation within the Norwegian eudialyte-eucolite group minerals. Optical studies were...material analysed, since eudialyte-eucolite group minerals are sometimes Some Eudialyte-Eucolite Specimens | | Sigmarsson, Olgeir, Laporte, Didier, Carpentier, Marion, Devouard, Bertrand, Devidal, Jean-Luc, Marti, Joan (2013) Formation of U-depleted rhyolite from a basanite at El Hierro, Canary Islands. Contributions to Mineralogy and Petrology, 165 (3) 601-622 doi:10.1007/s00410-012-0826-5 | Journal (article/letter/editorial) | U-depleted rhyolite from a basanite at El Hierro, Canary Islands Olgeir Sigmarsson âą Didier Laporte âą Marion...alkaline magma suites, which characterize the Canary Islands. The October 2011 submarine eruption off El...element concentrations are typical of the western Canary Island basanites. In contrast, the trace element...CSIC, LLuis Sole Sabaris s/n, 08028 Barcelona, Spain Magma suites, or series of rock compositions from...1998; Hirschmann et al. 2003). At many oceanic islands, such as the Canaries, volcanism produces one or | | | Journal (article/letter/editorial) | SUBSOLIDUS PROCESSES IN AN AGPAITIC SYSTEM USING EUDIALYTE TEXTURES AND COMPOSITION: A CASE STUDY FROM TAMAZEGHT...silicate unit of the complex (malignites) contains eudialyte-group minerals (EGM) as index phases for agpaitic...with the surrounding country-rocks. Keywords: eudialyte-group minerals, agpaitic rocks, mineral compositions...recoupĂ© par des diatrĂšmes et des filons de carbonatite et des filons de roches alcalines. Dans des endroits...composĂ©e de malignites, contient des minĂ©raux du groupe de lâeudialyte (MGE), indicateurs de systĂšmes | | | Catalog/List | matrix (Le Pelley's shaft, Little Sark Channel Islands) A Silver Mine. 34 x J4 ÂŁ1.20 200 JORDANITE Pb/14...Matrix. (Vispi Quarry, near San Venanzo Terni Province, Umbria, Italy) 1/2 x l/2ins ÂŁ5 5 056 CHABAZITE...minor white coating on the faces. (Capo de Gata, Almeria, Spain) ÂŁ1.50 510 ORTHOCLASE 1cm pinkish double...Silicate rich blue masses in matrix (Estopinan, Huesca Spain) 2cm piece ÂŁ3.50 007 ALBITE . Feldspar Group, grey...Mercury Sulphide rich red masses in matrix. (Almaden Spain) TOXIC 1x1 90p 1x2 ÂŁ1.60 2x2 ÂŁ3.30 1 x 'h tl.te | | | Journal (article/letter/editorial) | chemistry of igneous rocks o f the Ltideritz Alkaline Province, South West Africa (J.S. Marsh, in preparation)...different types of fractionation. In the Liideritz province, the rocks listed in Table 1 are demonstrably...-undersaturated alkaline rocks from the Ltideritz Province (major and trace elements determined by X-ray...rocks in the Mesozoic Damaraland Province [13] and Mesozoic Angola Province (the Volcanic Belt o f Angola)...lavenite, pyrochlore, apatite, arfvedsonite, eudialyte-eucolite solid solution rinkolite, mangansteenstrupihe | | | Book | Portugal Roumania Sweden U.S.S.R. Angola Burundi Canary Islands Chad Republic Democratic Republic of the Congo...Colour and Varnish Manufacturers; SociĂ©tĂ© Francaise de CĂ©ramique; United Kingdom Atomic Energy Research...Sphene(Titanite) CaTiSiO, Ilmenite FeTiO, Zircon Zr,SiO, Eudialyte (Eucolite) (Na,CaFe),Zr(OH,CI)(SiO,), Catapleiite... 27 36 â 36 146 328 â Norway .. Portugal .. Spain Sweden Switzerland South Africa 1961 â 500 2...Mount Elgon in the Karamoja district of Northern Province, have not been fully examined, but existing analyses | | Zhu, Yu-Sheng, Yang, Jin-Hui, Wang, Hao, Xu, Lei, Li, Rui, Wu, Ya-Dong (2020) Geochemical and SrâNdâHfâO isotopic constraints on the source and petrogenesis of the Xiangshuigou silicic alkaline igneous complex from the northern margin of the North China Craton. Lithos, 378. 105866pp. doi:10.1016/j.lithos.2020.105866 | Journal (article/letter/editorial) | +86-18701405902 Journal Pre-proof Abstract We present eudialyte and zircon UâPb ages, whole-rock geochemical,...associated mafic or intermediate rocks. Zircon and eudialyte UâPb dating re yielded consistent ages of 227â219...of the complex is challenging. Here we present eudialyte and zircon UâPb age data for different rock Journal...been identified in the Datong region of Shanxi Province (Niu et al., 2016a). The Xiangshuigou complex...high-field-strength element (HFSE)-bearing minerals, such as eudialyte and lorenzenite (Fig. 2dâe). ro These phases | | | Journal (article/letter/editorial) | prismatic aegirine, barytolamprophyllite, wadeite, eudialyte, loparite-(Ce) and altered rinkite (``vudyavrite'')...and zircono-silicates (barytolamprophyllite, eudialyte, wadeite, and rinkite, among others) consumed...pseudomorphs after nepheline, replacement of wadeite and eudialyte by catapleiite-group minerals, re-deposition of...benitoite, and cation leaching from rinkite, eudialyte, and loparite. The mineralogy of the pegmatites...that, in contrast to nepheline melasyenites, bona Âźde malignite lacks perthitic feldspar and is characterized | | | Journal (article/letter/editorial) | Environnement Toulouse (GET), Observatoire de Midi-PyrĂ©nĂ©es, UniversitĂ© de NU 1 RI Julien Berger1, Nasser...Edouard Belin, F-31400 Toulouse, France Laboratoire de GĂ©odynamique, UniversitĂ© ChouaĂŻb Doukkali, El Jadida...rocks from the NU Circum Mediterranean volcanic province (Lustrino and Wilson, 2007; Berger et al., 2009)...sub-atlasic belts and foreland NU basins (Frizon de Lamotte et al., 2000; Teson and Teixell, 2008). According...been related to the horizontal propagation of the Canary plume under the Atlasic corridor (Duggen et al | | Melluso, L., Tucker, R.D., Cucciniello, C., le Roex, A.P., Morra, V., Zanetti, A., Rakotoson, R.L. (2018) The magmatic evolution and genesis of the Quaternary basanite-trachyphonolite suite of Itasy (Madagascar) as inferred by geochemistry, Sr-Nd-Pb isotopes and trace element distribution in coexisting phases. Lithos, 310. 50-64 doi:10.1016/j.lithos.2018.04.003 | Journal (article/letter/editorial) | in the mantle sources throughout the Cenozoic province (cf. Melluso et al., 2016). The very marked geochemical...analogues found in other areas (e.g., the Roman Province, the western branch of the East African Rift);...Vatin-Perignon, 1968; Eifel: Wörner and Schmincke, 1984; Tenerife: Bryan, 2006; Mt. Etinde: Nkombou et al., 1995;...Alessio Langella, Sergio Bravi, Petrus Le Roux, Roberto deâ Gennaro, Vohangy Ratrimo, DieudonnĂ© Razafimahatratra...the TeideâPico Viejo volcanic complex, Tenerife, Canary Islands. Journal of Petrology 39, 905-936. Andrianaivo |
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