 | Donoghue, E., Troll, V. R., Harris, C. (2010) Fluid-Rock Interaction in the Miocene, Post-Caldera, Tejeda Intrusive Complex, Gran Canaria (Canary Islands): Insights from Mineralogy, and O- and H-Isotope Geochemistry. Journal of Petrology, 51 (10) 2149-2176 doi:10.1093/petrology/egq052 | Journal (article/letter/editorial) | | Miocene, Post-Caldera, Tejeda Intrusive Complex, Gran Canaria (Canary Islands): Insights from Mineralogy...volcaniclastic deposits of the Miocene Tejeda caldera on Gran Canaria host an 12 km diameter intrusive complex...cone sheets; Gran Canaria; hydrothermal alteration; intrusive complexes; stable isotopes;Tejeda caldera ...OCTOBER 2010 about by fluid^rock interaction in the Tejeda Intrusive Complex, (2) the main fluid source(s)...hydrothermal systems within the Tejeda caldera. GEOLOGIC A L S ET T I NG The Canary Archipelago is a NE^SW-trending |  | | Journal (article/letter/editorial) | | (Helvetia) Frodatera, Lukmanier, hornblende, 389 Spain (Espafia) Pontevedra, bolivarite, 418 Azores Formigas...nepheline, 67o plagioclase, Zambia Central Province, talc-kyanite-quartz schist, Mg-chlorite-kyanitc-quartz...Bushveld Complex, ceylonite, ilmenite, titanomagnetite, 863 Molteno, Cape Province, meteorite, 89 Waterfall...Yellowstone clinopyroxene, 936 Roque Nublo Volcanics, Gran Canaria, augite, 251 AMERICA Greenland ...Edvard Holm, Kangerdlugssuaq Fjord, augite, 49; ilmenite, titanomagnetite, 946 Puklen, Nunarssuit, potash |  | | Journal (article/letter/editorial) | | Xenoliths from the Alkalic Rocks of Teneriffe, Canary Islands G. D. Bo~L~.Y, P. SUDD~Y, a n d P. SCOTT Geology...Pedro Gil region; nepheline-syenite xenoliths in the Las Canadas and Vilaflor regions where intermediate and...exposed plutonic basement rocks from other Canary Islands, which are believed to have similar sub-crustal...h o s e of alkalic t y p e , of t h e oceanic islands; W h i t e (1966) a n d K u n o (1969) on mafic...n o l i t h s f r o m t h e S. A t l a n t i c islands of Gough a n d T r i s t a n d a C u n h a ; Bennell |  | | Journal (article/letter/editorial) | | the Mogan and lower Fataga Formations, Gran Canada, Canary Islands: temporal changes in mantle source composition...Hogarzales, Mogan, and Fataga Formations, Gran Canaria, Canary Islands. The aims are to constrain petrogenetic...nearly constant at 0.512913 ± 15. The source of Gran Canaria magmas is heterogeneous on small scales of both...geochemically distinct "Fataga" magma into the Tejeda magma chamber, which mixed with a n d / o r finally...late-stage shield magmas on Gran Canaria. 1. Introduction Oceanic islands offer the potential to reveal |  | | Journal (article/letter/editorial) | | of the swarm. Within the lower Tertiary igneous province of East Greenland (Brooks, 1973a and b), kaersutite-bearing...described from Tristan da Cunha (LeMaitre, 1969), Gran Canaria (Frisch and Schmincke, 1969; Mufioz, I973),...Tenerife (Borley, Suddaby, and Scott, I97I), and Spain (Sagredo, I973). All these occurrences are remarkably...plagioclase, clinopyroxene, and ore (titanomagnetite and ilmenite). Small amounts of brown amphibole and patches...with the exsolution of lamellae of ilmenite. Likewise, the ilmenite shows varying degrees of alteration |  | | Journal (article/letter/editorial) | | Mogan and Fataga formations, Tejeda Volcano, Gran Canaria, Canary Islands: mineral chemistry, intensive...and Fataga formations on the island of Gran Canaria, Canary Islands, represent a sequence of approximately...Fataga) rocks is anorthoclase + edenitic amphibole + ilmenite + magnetite +_augite_+ hypersthene + apatite +...610 bars, which indicates that magma within the Tejeda reservoir was H20undersaturated throughout the...ferromagnesian phase composition indicate that the Tejeda magmatic system was open and kept at nearly the |  | | Journal (article/letter/editorial) | | amounts are biotite, magnetite,and ilmenite. Augite, magnetite, and ilmenite are cumulus phasesat higher levels...to 65 SiO2, percent percent Nublo basalts, Canary Islands (Frisch the Roque mole Fs but of 8 mole tion...the vol- superstructureof the volcano. In the Roque Nublo canic augites,conspicuousas a result of the relatively...similar xenolithsfrom Tenerife,Canary Decreasein Fe/Mg Ratio in Augite Islands, there is reverse zoning in...ole inclusions from the Roque Nublo volcanics, Gran Canaria, Canary Islands. BuIl. Volcanol. 33, 1073-1088 |  | Gurenko, A.A., Hoernle, K.A., Hauff, F., Schmincke, H.-U., Han, D., Miura, Y.N., Kaneoka, I. (2006) Major, trace element and Nd–Sr–Pb–O–He–Ar isotope signatures of shield stage lavas from the central and western Canary Islands: Insights into mantle and crustal processes. Chemical Geology, 233 (1) 75-112 doi:10.1016/j.chemgeo.2006.02.016 | Journal (article/letter/editorial) | | shield stage lavas from the central and western Canary Islands: Insights into mantle and crustal processes...January 2006; accepted 14 February 2006 Abstract The Canary plume is one of the few plumes that can be traced...the subaerial shield stage lavas erupted on Gran Canaria, Tenerife, La Gomera and La Palma because these...higher (up to 11.8) Zr/Y ratios in the lavas from Gran Canaria. This observation, as well as systematically...given MgO in the Gran Canaria lavas, as compared with those from other Canary Islands, imply melting of |  | | Journal (article/letter/editorial) | | -oversaturated alkaline series. The Cantal alkaline province displays a large spectrum of basaltic and intermediate...of a metasomatized mantle directly below this province. The Cantal massif The Cantal massif is located...stratovolcano of the TertiaryQuaternary volcanic province of western and central Europe. The main phase...the oversaturated series of the Cantal basaltic province. Classi®cation and nomenclature from Le Maitre...and phonolites). Fe±Ti oxides (magnetite and=or ilmenite) are observed as microphenocrysts and microcrysts |  | | Journal (article/letter/editorial) | | Ultramafic and mafic xenoliths from Hierro, Canary Islands: evidence for melt infiltration in the upper...from alkali basalt in the island of Hierro, Canary Islands: (1) Cr-diopside series (spinel harzbugite...crust associated with the formation of oceanic islands. The present paper reports on a series of ultramafic...from Hierro, one of the westermost Canary Islands. The Canary Islands are situated in the magnetic quiet...(Fig. 1). The sea-floor N and S of the western Canary Islands, including Hierro, reaches depths between 3500 |  | | Journal (article/letter/editorial) | | clinopyroxerie, plagioclase, olivine, titanomagnetite, ilmenite, apatite, rare glass and nepheline (expecially...inclusions from the Roque Nublo Volcanics, Gran Canaria, Canary Islands (Petrology of Roque Nublo Volcanics I)...from the alkaline volcanic rocks of Tenerife, Canary Islands. Mineral Mag 40:805 816 Stegena L (1964) The |  | | Journal (article/letter/editorial) | | (1970) The Petrology of the Las Canadas Volcanoes, Tenerife, Canary Islands WILLIA1V[IA~ffI~IDLEY Department...seven Tertiary to Recent volcanic islands that make up the Canary Archipelago. The island is composed...e assemblage that eharacterises many Atlantic islands. The most voluminous development of intermediate...volcanics has been in the centre of the island where the Las Canadas volcanoes arose upon a basement shield composed...Complex exposed in Las Canadas, together with the Viejo and Teide volcanoes, comprise the Las Canadas volcanoes |  | | Journal (article/letter/editorial) | | 693 AUCOTT(J. W.), see ENGIN (T.), 76 Augite, Canary Isles, hour-glass structure in, interpretation...Bolivarite, Congo (Kinshasa), anal., opt., d.t.a., 4:8; Spain, trace elements, 418 Bolsena, Italy, latite, clinopyroxene...78I BushveM Complex, South Africa, ceylonite, ilmenite, titanomagnetite, 863 Bushveld-type orthopyroxene...Kilbirnie, Ayrshire, tobermorite, 253 Central province, Zambia, Mg-chlorite-kyanitequartz schist, talc-kyanite-quartz...opt., ceilsize, 894 llfeld, Harz, manganite, 245 Ilmenite, South Africa, anal., cell-size, 863; Greenland |  | | Journal (article/letter/editorial) | | explosive eruptions from the Las Cañadas edifice, Tenerife (Canary Islands) S. E. BRYAN*†, J. MART͇ &...CSIC, Lluis Sole Sabaris s/n, 08028 Barcelona, Spain (Received 12 August 1997; accepted 27 April 1998)...large phonolitic shield volcano of Tenerife, the Las Cañadas edifice, for the last 1.5 m.y. Pyroclastic...been important in the volcanic evolution of the Las Cañadas edifice. 1. Introduction For many modern...volcanic successions. The Las Cañadas caldera of Tenerife in the Canary Islands is at the summit of the |  | | Journal (article/letter/editorial) | | composition to the alkaline lavas found on oceanic islands and the calc-alkaline lavas of destructive plate...Johnson et al. (1976) for alkaline volcanics on islands off the coast of Papua (New Guinea) is illustrated...been used successfullyfor lavas on some oceanic islands (e.g., Tristan da Cunha; Baker et al. 1964). The...Some magnetites contain exsolution lamellae of ilmenite, but unfortunately the coarseness of the exsolution...ne-trachybasalts and the alkali-olivine basalts of oceanic islands. The former have higher SiO2 and lower TiO2 and |  | | Report (issue) | | reconnaissance Hydrogeologic reconnaissance of the Canary Islands, Spain, by R. J. Dingman and Jos6 Nunez______________________...GEOLOGIC SETTING The southern Piedmont geologic province has been divided into several narrow lithologic...parallel the general northeast trend of the Piedmont province (King, 1955). These belts from northwest to southeast...C. 84 Triassic rocks ATLANTIC COASTAL PLAIN PROVINCE FIGURE 1. Map showing locality of this study...Charlotte belt in this part of the Piedmont geologic province. REFERENCES Brown, W. L. 1962, Peristerite unmixing |  | | Journal (article/letter/editorial) | | titanbiotite, plagioclase, anorthoclase, titanomagnetite, ilmenite and apatite (e.g. Kuno 1969; Binns et at. 1970;...in the 15- Lithos 4/81 West Greenland Tertiary province, postdating the main tholeiitic volcanism (around...old lamprophyre and tinguaite dykes occur on the islands of Qingus~iaq and Upernivik@35 km N E of Qfirusuk...olivine phenocrysts of the picrite basalts of the province (A. K. Pedersen, pers. comm.; author, unpublished...are known from a monchiquite dyke in the Orkney Islands (Flett 1900) and the potassic volcanics of West |  | | Book | | phreatomagmatic eruptions in the Ferrar large igneous province, Antarctica. — Journal of Geology 113 (6), pp...subaerially (YANG et al. 1994). Large oceanic islands commonly became deeply dissected after the constructional...documented in many active shield volcanoes such as Gran Canaria (FUNCK and SCHMINCKE 1998; CARRACEDO 1999),...from Stromboli (Strombolian) in Aeolian (Lipari) Islands in Italy, Hawaii (Hawaiian), Vesuvius (Vesuvian)...eruption from Vulcano in the Aeolian (Lipari) Islands, Italy (Plate IV, 3). Typical Vulcanian-style eruptions |  | | Book | | threefold inversion rotational axis c. Examples: ilmenite (7 Sect. 7.3), dolomite (7 Sect. 8.3), phenakite...paramagnetic crystal structures. For instance, ilmenite Fe2+Ti4+O3 is paramagnetic at room temperature...dolomite, oxides, mainly magnetite (. Fig. 2.9), ilmenite and haematite (. Fig. 7.7), and phosphates, mainly...for many decades. The name of the Rio Tinto in Spain stems from its dark colour due to the high content...phosphor-rich oxide melts. Moreover, chromite, ilmenite, titanian magnetite or platinum-group metals precipitate |  | Shagam, R., Hargraves, R. B., Morgan, W. J., Houten, F. B. Van, Burk, C. A., Holland, H. D., Hollister, L. C. - Eds. (1972) Studies in Earth and Space Sciences. GSA Memoir 132. Geological Society of America doi:10.1130/mem132 | Report (issue) | | Orogeny in the Hanson Lake Area of the Churchill Province of the Canadian Shield.L.C. Coleman Possible Fracture...level with time, contained in the “Drowned Ancient Islands” paper. I know of no thoughtful scientist who is...torn the Pacific plate apart), and the Hawaiian Islands and Emperor Seamount Chain were formed as the Pacific...and trends from Bouvet, Reunion, and Ascension Islands. This motion did not agree well with the paleomagnetic...linear basaltic ridge on the sea floor—the Hawaiian Islands. Likewise, the excessive flow from Tristan de Cunha |  | | Journal (issue) | | R W AY, PA K I S TA N , PORTUGAL, SOUTH AFRICA, SPAIN, SWEDEN, SWITZERLAND, TURKEY. Editors J. M. HADFIELD...de Madrid, Jose Gutierrez Abascal 2, Madrid 6. Spain: DR. B. LI NDQVIST, Naturhistoriska Riksmuseet,...the Blekinge province is not a southerly continuation o f the Svccokarclian orogenic province o f central...t can be correlated with the SW Swedish gneiss province, formed 1800-1650 m.y. ago. Rb-Sr whole-rock isochron...dyke, o f the North Atlantic Tertiary igneous province, range f r o m 4 3 . 8 t o 6 2 . 6 m . y. Interpreted |
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