| | Journal (article/letter/editorial) | due to agricultural practices at Sete Cidades volcano (Azores, Portugal) J. Virgílio Cruz a,⇑, M.O. Silva...Geosciences, University of the Azores, Apartado 1422, 9501-801 Ponta Delgada, Portugal Geology Department and...Universidade de Lisboa, Edifico C6, 1749-016 Lisboa, Portugal c Applied Geochemistry & Luminescence on Cultural...IST/ITN, Estrada Nacional 10, 2686-953 Sacavém, Portugal b a r t i c l e i n f o Article history: Received...c t Groundwater is a strategic resource of the Azores archipelago given that agriculture is a major economic | | | Report (chapter) | significance of basaltic eruptive centres: São Miguel, Azores T. FERREIRA1,2*, A. GOMES1,2, J. L. GASPAR1...CVARG, Rua da Mãe de Deus, 9500 – 321 Ponta Delgada, Açores, Portugal 2 Centro de Informação e Vigilância...CIVISA, Rua da Mãe de Deus, 9500-321 Ponta Delgada, Açores, Portugal 3 Department of Earth Sciences, University...occurs at all the active volcanic systems of São Miguel. For the last 30 ka, the eruption of basaltic magma...areas between the three polygenetic volcanoes – Sete Cidades, Fogo and Furnas – and two basaltic fields have | | Laeger, Kathrin, Petrelli, Maurizio, Morgavi, Daniele, Lustrino, Michele, Pimentel, Adriano, Paredes-Mariño, Joali, Astbury, Rebecca L., Kueppers, Ulrich, Porreca, Massimiliano, Perugini, Diego (2019) Pre-eruptive conditions and triggering mechanism of the ~ 16 ka Santa Bárbara explosive eruption of Sete Cidades Volcano (São Miguel, Azores) Contributions to Mineralogy and Petrology, 174 (2) doi:10.1007/s00410-019-1545-y | Journal (article/letter/editorial) | Bárbara explosive eruption of Sete Cidades Volcano (São Miguel, Azores) Kathrin Laeger1 · Maurizio Petrelli1...the major eruptions of the Sete Cidades Volcano (São Miguel Island, Azores), recording the last phase...41 h before the onset of the eruption. Keywords Azores · Fractional crystallization · Homogenization ·...available on the last page of the article Sete Cidades Volcano (SCV) is one of three active trachytic central...island of São Miguel (Azores), and the volcano with the highest eruptive frequency in the Azores over the | | | Report (volume) | Three Late Quaternary Stratovolcanoes on Sao Miguel, Azores U.S. GEOLOGICAL SURVEY BULLETIN 1900 Prepared...cooperation with the Regional Government of the Azores AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL...Three Late Quaternary Stratovolcanoes on Sao Miguel, Azores By RICHARD B. MOORE Prepared in cooperation...cooperation with the Regional Government of the Azores U.S. GEOLOGICAL SURVEY BULLETIN 1900 U.S. DEPARTMENT...three late Quaternary stratovolcanoes on Sao Miguel, Azores I by Richard B. Moore. p. em. (U.S. Geological | | | Report (chapter) | Eruptive history and evolution of Sete Cidades Volcano, São Miguel Island, Azores G. QUEIROZ1*, J. L. GASPAR1...CVARG, Rua da Mãe de Deus, 9500-321 Ponta Delgada, Açores, Portugal 2 Department of Earth Sciences, University...pt) Abstract: Sete Cidades is an active central volcano on the western part of São Miguel. The geological...units defined for Sete Cidades deposits reflect major events in the history of the volcano and are organized...ka ago. Analysis of the eruptive history of Sete Cidades shows that effusive or moderately explosive | | | Report (chapter) | October 8, 2015 Chapter 5 The magmatism of the Azores islands VITTORIO ZANON Centro de Vulcanologia e...CVARG, Rua da Mãe de Deus, 9500-321 Ponta Delgada, Açores, Portugal (e-mail: Vittorio.VZ.Zanon@azores...Zanon@azores.gov.pt) Abstract: Magmas in the Azores (Portugal) were erupted from both fissure zones and central volcanoes...sources with a ubiquitous and slightly depleted Azores mantle. Finally, a contribution of recycled oceanic...in Pb isotope ratios across the island of São Miguel. Primitive melts were generated by 1 –7% partial | | | Report (chapter) | zones at oceanic islands. The case of São Miguel Island (Azores archipelago) VITTORIO ZANON Vittorio Zanon...Açores. Rua Mãe de Deus, P-9501 – 801 Ponta Delgada, Portugal (e-mail: Vittorio.VZ.Zanon@azores.gov.pt)...basalts erupted from fissure zones at São Miguel Island (Azores) were investigated through microthermometry...conditions and storage pressures/depths. In the Azores archipelago (central North Atlantic Ocean), at...2013; Zanon & Pimentel 2015). On the island of São Miguel, there is an alternation of central volcanoes and | | | Journal (article/letter/editorial) | 1093/petrology/egl014 Magma Evolution of the Sete Cidades Volcano, São Miguel, Azores CHRISTOPH BEIER1*, KARSTEN M....PUBLICATION MARCH 29, 2006 The Sete Cidades volcano (São Miguel, Azores) is situated at the eastern end...the ultraslow spreading Terceira rift axis. The volcano comprises several dominantly basaltic pre-caldera... continuous liquid line of descent from alkali basalt to trachyte, although slight differences in incompatible...melting processes throughout the evolution of the volcano. Slight geochemical differences between post- and | | Jeffery, A. J., Gertisser, R., O’Driscoll, B., Pacheco, J. M., Whitley, S., Pimentel, A., Self, S. (2016) Temporal evolution of a post-caldera, mildly peralkaline magmatic system: Furnas volcano, São Miguel, Azores. Contributions to Mineralogy and Petrology, 171 (5) doi:10.1007/s00410-016-1235-y | Journal (article/letter/editorial) | peralkaline magmatic system: Furnas volcano, São Miguel, Azores A. J. Jeffery1 · R. Gertisser1 · B. O’Driscoll2...of three active central volcanoes on São Miguel Island, Azores, and is considered to be one of the most...from extended fractional crystallisation of alkali basalt parental magmas, at depths between ~3 and 4 km...Geológicos, University of the Azores, 9501‑801 Ponta Delgada, Azores, Portugal 4 Centro de Informação e...Sismovulcânica dos Açores, 9501‑801 Ponta Delgada, Azores, Portugal 5 Department of Earth and Planetary | | | Report (chapter) | from degassing of crater lakes in São Miguel Island, Azores GLADYS MELIÁN1,2,3*, LUÍS SOMOZA4, ELEAZAR...Geotérmico dos Açores (OVGA), 9560-414 Lagoa, Açores, Portugal *Corresponding author (e-mail: gladys@iter.es)...lakes of São Miguel Island (Sete Cidades, Fogo and Furnas), Azores archipelago, Portugal. The results...degassing in the Fogo (1.5–2 plumes per 100 m2) and Sete Cidades crater lakes (1 –1.5 plumes per 100 m2). The...Late Quaternary stratovolcano complexes of São Miguel Island. Our results emphasize the need to perform | | | Report (chapter) | Chapter 11 The older volcanic complexes of São Miguel, Azores: Nordeste and Povoação A. M. DUNCAN1,2*,...dos Açores, Rua Mãe de Deus, 9501-801, Ponta Delgada, Portugal 5 Department of Geography and Environmental...Duncan@liverpool.ac.uk) Abstract: The oldest part of São Miguel is to the east of Furnas. Previous research argued...volcanics belong to a construct called the Nordeste Volcano, a heavily eroded shield which not only extends...coast of the island but also underlies Furnas Volcano in the west. On the basis of geomorphological mapping | | | Report (chapter) | Chapter 3 Active tectonics in the central and eastern Azores islands along the Eurasia –Nubia boundary: a review...Lisboa, Edif. C6, Campo Grande, 1749 – 016, Lisboa, Portugal 2 Centro de Vulcanologia e Avaliação de Riscos... Rua da Mãe de Deus, 9500 – 321, Ponta Delgada, Açores, Portugal 3 Centro de Informação e Vigilância...CIVISA, Rua da Mãe de Deus, 9500– 321, Ponta Delgada, Açores, Portugal *Corresponding author (e-mail: jmadeira@fc...ul.pt) Abstract: The geodynamic setting of the Azores archipelago, straddling the triple junction between | | | Journal (article/letter/editorial) | com/locate/chemgeo Helium and neon isotopes in São Miguel island basalts, Azores Archipelago: New constraints on the...Geociências U. Évora, R. Romão Ramalho, 59, 7000 Évora, Portugal Estrutura de Missão p/ Assuntos do Mar, R. Costa...Costa Pinto, 165, 2770–047 Paço de Arcos, Portugal a r t i c l e i n f o Article history: Received 24...Keywords: Azores Helium São Miguel island Isotopes Underplating a b s t r a c t Lavas from the São Miguel...Miguel Island, Azores Archipelago, have peculiar isotopic compositions, including radiogenic lead and strontium | | | Journal (article/letter/editorial) | com/locate/epsl The peculiar geochemical signatures of São Miguel (Azores) lavas: Metasomatised or recycled mantle...Editor: R.W. Carlson Abstract The island of São Miguel, Azores consists of four large volcanic systems that...trace element variability. The westernmost Sete Cidades volcano has moderately enriched Sr–Nd–Pb–Hf isotope...contrast, lavas from the easternmost Nordeste volcano have unusually high Sr and Pb and low Nd and Hf...parent–daughter element evolution of both the Sete Cidades and Nordeste source matches the incompatibility | | | Report (chapter) | Chapter 8 Eruptive history of Fogo Volcano, São Miguel, Azores N. WALLENSTEIN1*, A. DUNCAN2,3, J. E...CVARG, Rua da Mãe de Deus, 9500-321 Ponta Delgada, Açores, Portugal 2 Institute of Biological, Environmental...largest of the three active central volcanoes on São Miguel and dominates the centre of the island. It is located...tectonic control. The products of Fogo range from basalt to trachyte and belong to a potassic alkaline suite...ka was established on the southern flank of the volcano. During this period there were large trachytic | | | Journal (article/letter/editorial) | Sub-volcanic crystallization at Sete Cidades volcano, Miguel, Azores, inferred from mafic and ultramafic...separate marie post-caldera parasitic vents, on Sete Cidades volcano, are described. These involve dunites, wehrlites...post-caldera marie lavas erupted on the flanks of Sete Cidades. The dunites, wehrlites, pyroxenites and olivine...postcaldera trachytic pumices erupted on Sere Cidades. Although the two suites of plutonic clasts can...Sub-vulkanische Kristallisation am Sere Cidades Vulkan, Sdo Miguel, Azoren: Die Bedeutung mafischer und | | Prytulak, Julie, Avanzinelli, Riccardo, Koetsier, Govert, Kreissig, Katharina, Beier, Christoph, Elliott, Tim (2014) Melting versus contamination effects on 238U–230Th–226Ra and 235U–231Pa disequilibria in lavas from São Miguel, Azores. Chemical Geology, 381. 94-109 doi:10.1016/j.chemgeo.2014.04.030 | Journal (article/letter/editorial) | and 235 U–231Pa disequilibria in lavas from São Miguel, Azores Julie Prytulak a,b,⁎, Riccardo Avanzinelli...online 21 May 2014 Editor: L. Reisberg Keywords: São Miguel U-series Contamination Pyroxenite/eclogite Dynamic...Dynamic melting a b s t r a c t The island of São Miguel, Azores piques geochemical interest due to a strikingly...(b50 wt.% SiO2) that encompass the full range of São Miguel's long-lived radiogenic isotope variability...alkali feldspar xenocrysts have been identified in São Miguel basalts. We argue that secondary contamination | | Beier, Christoph, Mata, João, Stöckhert, Ferdinand, Mattielli, Nadine, Brandl, Philipp A., Madureira, Pedro, Genske, Felix S., Martins, Sofia, Madeira, José, Haase, Karsten M. (2013) Geochemical evidence for melting of carbonated peridotite on Santa Maria Island, Azores. Contributions to Mineralogy and Petrology, 165 (5) 823-841 doi:10.1007/s00410-012-0837-2 | Journal (article/letter/editorial) | of carbonated peridotite on Santa Maria Island, Azores Christoph Beier • João Mata • Ferdinand Stöckhert...Berlin Heidelberg 2012 Abstract The islands of the Azores archipelago emerge from an oceanic plateau built...archipelago, along with published data from the other Azores islands situated Communicated by J. Hoefs. Electronic...Lisboa, FCUL, Campo Grande C6, 1749-016 Lisbon, Portugal N. Mattielli Laboratoire G-Time CP160/02, Université...R. Costa Pinto, 165, 2770-047 Paço de Arcos, Portugal P. Madureira Centro de Geofı́sica de Évora, Dep | | | Report (chapter) | Tectonic and volcanic deformation at São Miguel Island, Azores, observed by continuous GPS analysis 2008–...Geological Risk Assessment, University of Azores, Ponta Delgada, Portugal 2 Nordic Volcanological Center, Institute...Department of Geosciences, University of Azores, Ponta Delgada, Portugal *Corresponding author (e-mail: jun...(GPS) to unravel the complex geodynamics of the Azores Triple Junction where tectonic and volcanic activities...densely distributed continuous GPS data on São Miguel for the period 2008– 13 provides an improved understanding | | Nazzareni, Sabrina, Nestola, Fabrizio, Zanon, Vittorio, Bindi, Luca, Scricciolo, Enrico, Petrelli, Maurizio, Zanatta, Marco, Mariotto, Gino, Giuli, Gabriele (2019) Discovery of moissanite in a peralkaline syenite from the Azores Islands. Lithos, 324. 68-73 doi:10.1016/j.lithos.2018.10.036 | Journal (article/letter/editorial) | of moissanite in a peralkaline syenite from the Azores Islands Sabrina Nazzareni, Fabrizio Nestola, Vittorio...of moissanite in a peralkaline syenite from the Azores Islands. Lithos (2018), https://doi.org/10.1016/j...of moissanite in a peralkaline syenite from the Azores Islands PT SABRINA NAZZARENIA,*, FABRIZIO NESTOLAB...Avaliação de Riscos / Universidade dos Açores, Ponta Dipartimento di Scienze della Terra, Università...Studi di Firenze, Firenze, Italy PT E d D Delgada, Portugal e f INFN, Perugia, Italy g CE Dipartimento | | Genske, Felix S., Beier, Christoph, Stracke, Andreas, Turner, Simon P., Pearson, Norman J., Hauff, Folkmar, Schaefer, Bruce F., Haase, Karsten M. (2016) Comparing the nature of the western and eastern Azores mantle. Geochimica et Cosmochimica Acta, 172. 76-92 doi:10.1016/j.gca.2015.08.019 | Journal (article/letter/editorial) | Comparing the nature of the western and eastern Azores mantle Felix S. Genske, Christoph Beier, Andreas...Comparing the nature of the western and eastern Azores mantle, Geochimica et Cosmochimica Acta (2015)... Comparing the nature of the western and eastern Azores mantle Felix S. Genskea,b,c,e*, Christoph Beiera...author: felix.genske@uni-muenster.de Abstract The Azores islands in the central North-Atlantic originate...part of the Azores platform and beyond. These are compared to existing data from the Azores islands east | | | Journal (article/letter/editorial) | com/locate/lithos Conditions of melting beneath the Azores Christoph Beier a, b,⁎, Karsten M. Haase a, Simon...online 7 March 2012 Keywords: Ocean Island Basalts Azores P–T estimates Major elements Geodynamics a b s...melting dynamics. The central Azores islands of Faial, Pico, Graciosa and São Jorge are ideally suited for...pattern of potential temperature anomalies in the Azores mantle plume. Trace elements indicate comparable...source composition. Melting temperatures in the Azores are lower and melting starts deeper than at other | | Jean-Baptiste, P., Allard, P., Coutinho, R., Ferreira, T., Fourré, E., Queiroz, G., Gaspar, J.L. (2009) Helium isotopes in hydrothermal volcanic fluids of the Azores archipelago. Earth and Planetary Science Letters, 281 (1) 70-80 doi:10.1016/j.epsl.2009.02.009 | Journal (article/letter/editorial) | isotopes in hydrothermal volcanic fluids of the Azores archipelago P. Jean-Baptiste a,⁎, P. Allard b,...Riscos Geologicos, Universidade dos Açores, Ponta Delgada, Portugal a r t i c l e i n f o Article history:...online 12 March 2009 Keywords: helium isotopes Azores hydrothermal fluids a b s t r a c t We present...for Sao Miguel. The results allow us to track current mantle degassing associated with the Azores hot spot...lower-than-MORB values (5.23–6.07 Ra) on central Sao Miguel, to MORB values on Faial (8.53 Ra) and Flores (8 | | Larrea, Patricia, Galé, Carlos, Ubide, Teresa, Widom, Elisabeth, Lago, Marceliano, França, Zilda (2014) Magmatic Evolution of Graciosa (Azores, Portugal) Journal of Petrology, 55 (11) 2125-2154 doi:10.1093/petrology/egu052 | Journal (article/letter/editorial) | 1093/petrology/egu052 Magmatic Evolution of Graciosa (Azores, Portugal) PATRICIA LARREA1,2*, CARLOS GALE¤1, TERESA... GEOSCIENCES DEPARTMENT, AZORES UNIVERSITY, SA‹O MIGUEL, 9501-801, PORTUGAL OBSERVATO¤RIO VULCANOLO¤GICO...GEOTE¤RMICO DOS ACORES, 9560 ATALHADA, SA‹O MIGUEL, PORTUGAL 5 RECEIVED JULY 9, 2013; ACCEPTED SEPTEMBER...located to the east of the Mid-Atlantic Ridge, in the Azores archipelago.The three volcanic complexes recognized...subalkaline gabbros, found for the first time in the Azores, appears to be related to fractionation of highly | | | Report (issue) | SURVEY Seismic Study of the Agua de Pau Volcano, Sao Miguel, Apores by P .B. Dawson1 , A. M. R. da Silva2...Institute Nacional de Meterologia and Geofisica, Portugal This report is preliminary and has not been reviewed...the U.S. Government. Park, California 2Ponta Delgada, Apores 1989 Table of Contents Introduction............................ Previous Work on Sao Miguel .............................................................................................. Volcano Hazards Evaluation and Monitoring ............ |
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