 | Garrison, Jennifer M., Sims, Kenneth W. W., Yogodzinski, Gene M., Escobar, Ricardo D., Scott, Sean, Mothes, Patricia, Hall, Minard L., Ramon, Patricio (2018) Shallow-level differentiation of phonolitic lavas from Sumaco Volcano, Ecuador. Contributions to Mineralogy and Petrology, 173 (1) doi:10.1007/s00410-017-1431-4 | Journal (article/letter/editorial) | | differentiation of phonolitic lavas from Sumaco Volcano, Ecuador Jennifer M. Garrison1 · Kenneth W. W. Sims2...Springer Nature 2018 Abstract Sumaco Volcano is located in the rear-arc of Ecuador and produces phonolitic...shallow depths in highly oxidizing conditions. The Sumaco mineral assemblages and geochemistry indicate that...that its unique magma source is confined to this volcano. The high temperature and sulfate-saturated conditions...An important conclusion of this research is that Sumaco does not represent typical rear-arc subduction |  | Barragan, Roberto, Geist, Dennis, Hall, Minard, Larson, Peter, Mark Kurz, (1998) Subduction controls on the compositions of lavas from the Ecuadorian Andes. Earth and Planetary Science Letters, 154 (1) 153-166 doi:10.1016/s0012-821x(97)00141-6 | Journal (article/letter/editorial) | | Geofisico, Escuela Politecnica Nacional, Quito, Ecuador c Geology Department, Washington State UniÕersity...of the Ecuadorian Andes, Atacazo, Antisana, and Sumaco, lie in a transect perpendicular to the trench...input. q 1998 Elsevier Science B.V. Keywords: Ecuador; Andes; subduction; andesites; assimilation 1...Present address: Oryx Ecuador Energy Company, P.O. Box 17-11-6545, Quito, Ecuador. 1 of magmas at an active...(1998) 153–166 Fig. 1. Terrane map of northern Ecuador Žadapted from w6,8x.. Closed triangles are volcanoes |  | | Book | | content of the mineral nepheline. In moderately subsilicic phonolites nepheline generally contains an...no silica excess VI Preface occurs in the nepheline of strongly subsilicic nephelinites and melilite...account this variation in the silica content of nepheline. The empirical approach is further illustrated...illustrated by the method of calculating normative nepheline and leucite. The valuation of a number of feldspathoidal...Simple Minerals and Accessories 3. Feldspars 4. Nepheline and Kalsilite 5. Leucite 6. Sodalite Group 7. |  | | Book | | the petrography of the interesting and unique nepheline syenite massif of Ditro in Transylvania, on which...names for the various “foid” root names, e.g. nepheline syenite; and 34 are rock terms. The Bibliography...scapolite F = feldspathoids or foids including nepheline, leucite, kalsilite, analcime, sodalite, nosean...names have been given, e.g. limburgite = hyalo-nepheline basanite (6) the prefix micro- should be used...unusual rock type is found only at Oldoinyo Lengai volcano in Tanzania. CaO calciocarbonatite 20 20 magnesiocarbonatite |  | | Book | | + Russ, kremei, silicon], apaneite [apatite + nepheline], auganite [augite + andesite], coralgal [coral...places and peoples also are represented: Brazil, Ecuador, Hawaii, Madagascar, Mexico, Peru; Armoricans,...1923) agpaite ig. pliiton. Collective name for nepheline syenites with large amounts of sodium pyroxene...more biotite and less nepheline than the original melteigite. ] Algarve province, Portugal] (Lacroix in...phenocrysts of labradorite, orthoclase, titanaugite, nepheline, magnetite, and apatite in a dense groundmass |  | | Book | | Continental Sub-Plate Chocó Arc Caribbean Large Igneous Province Central Tectonic Realm circa, approximately centimeter...under the Putumayo basin. In Ecuador, the GSR underlies the Putumayo-Napo basin, the 1 Phanerozoic...eastwards into the Amazon basin of both Colombia and Ecuador. The Guiana Shield formed the backstop for the...paleontological dates for this unit from both Colombia and Ecuador. Farther west, the Gorgona terrane is located on...Cretaceous Pacific Realm belong to a similar volcanic province. The Sinú terrane is located outboard of San Jacinto |
|
