 | 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) | | for melting of carbonated peridotite on Santa Maria Island, Azores Christoph Beier • João Mata • Ferdinand...Berlin Heidelberg 2012 Abstract The islands of the Azores archipelago emerge from an oceanic plateau built...trace element and Sr–Nd–Pb isotope data from Santa Maria, the easternmost island of the archipelago, along...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 |  | | Report (chapter) | | October 8, 2015 Chapter 5 The magmatism of the Azores islands VITTORIO ZANON Centro de Vulcanologia e...Açores, Portugal (e-mail: Vittorio.VZ.Zanon@azores.gov.pt) Abstract: Magmas in the Azores (Portugal) were...sources with a ubiquitous and slightly depleted Azores mantle. Finally, a contribution of recycled oceanic...chemical heterogeneities in the mantle sources. The Azores, located in the middle of the North Atlantic Ocean...volcanological observations. Geodynamic setting The Azores archipelago consists of nine islands and several |  | Wei, Xun, Zhang, Guo-Liang, Castillo, Paterno R., Shi, Xue-Fa, Yan, Quan-Shu, Guan, Yi-Li (2020) New geochemical and Sr-Nd-Pb isotope evidence for FOZO and Azores plume components in the sources of DSDP Holes 559 and 561 MORBs. Chemical Geology, 557. 119858pp. doi:10.1016/j.chemgeo.2020.119858 | Journal (article/letter/editorial) | | geochemical and Sr-Nd-Pb isotope evidence for FOZO and Azores plume components in the sources of DSDP Holes 559...in the mantle plume sources of lavas in all the Azores islands except for the eastern part of São Miguel...plume-influenced E-MORBs near the Azores hotspot and even the Azores lavas. These suggest that Hole 561...metasomatized by deep, low-degree melts of the common Azores plume component. We propose that variable amounts...Mid-Atlantic Ridge E-MORB FOZO Radiogenic isotopes Azores plume 1. Introduction Mid-ocean ridge basalts |  | | Report (chapter) | | 11 The older volcanic complexes of São Miguel, Azores: Nordeste and Povoação A. M. DUNCAN1,2*, J. E...Açores, Rua Mãe de Deus, 9501-801, Ponta Delgada, Portugal 5 Department of Geography and Environmental Science...much older than the latter. São Miguel Island, Azores, is made up of three central volcanoes, each of...(eds) 2015. Volcanic Geology of São Miguel Island (Azores Archipelago). Geological Society, London, Memoirs...Two widespread thick flows of ankaramite and plagioclase ankaramite Unconformity Conformable sequence |  | | Journal (article/letter/editorial) | | f the A z o r e s Islands William M. White ~, Maria D.M. Tapia 2., and Jean-Guy Schilling 3 1 Departmentof...Island 02881, USA Abstract. Forty lavas from the Azores Islands have been analyzed for 8VSr/86Sr ratios...hy-normative basalts from Terceira to basanitoids from Santa Maria. Differentiated lavas include both typical trachytes...adjacent Mid-Atlantic Ridge which transects the Azores Plateau. 878r/S6Sr ratios in lavas from 6 of the...tholeiites from the Mid-Atlantic Ridge transect of the Azores Plateau. This suggests that lavas from these islands |  | | Report (chapter) | | characterization of mineral waters in São Miguel Island, Azores J. V. CRUZ*, P. FREIRE, A. COSTA, J. FONTIELA,...Geosciences, University of Azores, Apartado 1422, 9501-801 Ponta Delgada, Portugal *Corresponding author (e-mail:...al. 2011). Owing to the volcanic nature of the Azores archipelago, 101 mineral water discharges occur...Flores. The Azores are located in the North Atlantic Ocean, about 1500 km west of mainland Portugal, between...and 246 102 inhabitants. Mineral waters in the Azores present a large variability of chemical types and |  | | Journal (article/letter/editorial) | | Saturated Peralkaline Volcanics from Terceira, Azores Stephen Self* and Bernard M. Gunn Department of...volcanoes form Terceira, one of the islands of the Azores group; three contain both basaltic and peralkaline...Terceira is one of nine volcanic islands of the Azores archipelago, which trend obliquely across the Mid-Atlantic...(Fig. 1 inset). Within this group the islands Santa Maria, Pico and Sgo Jorge are predominantly built of...of Terceira showing fissure zone (stippled). A Santa Barbara Volcano; B Pico Alto Volcano; C and D old |  | | Journal (article/letter/editorial) | | K-Ar ages from the eastern Azores group (Santa Mafia, Miguel and the Formigas Islands)* A. A. ABDEL-MONEM... G. M. 1975: K-Ar ages from the eastern Azores group (Santa Mafia, S~o Mignel and the Formigas Islands)...of the age of volcanic activity in the eastern Azores group are based on shelly fauna in a coquina zone...zone separating the two basaltic sequences on Santa Maria. A Vindobonian (Middle Miocene) age has been...basaltic series exposed below the coq~aina zone on Santa Maria is 6-8 m.y. old and probably much older. The |  | | Journal (article/letter/editorial) | | Pyroclastics from Agua de Pau Volcano, Sao Miguel, Azores: Evolution of a Magma Body over 4,000 Years Michael...stratigraphy of Sao Miguel, the largest of the nine Azores volcanic islands, records large numbers of trachytic...sections exposed at the composite volcanoes of Santa Maria in Guatemala and Boqueron in E1 Salvador has...Setting The Azores islands are situated in the Atlantic approximately 1,400 km west of Portugal (Fig. 1a)...Mid-Atlantic Ridge on a topographic high known as the Azores Platform, those islands to the east of the ridge |  | | Journal (article/letter/editorial) | | 165-78 Phenocrystie olivines from the eastern Azores G A R Y M. B O O N E AND L O U I S A. F E R N A...nodule sample, all from volcanics in the eastern Azores, range in composition from Fo87 to Fo69. Most are...co-precipitation and fractionation of calcic plagioclase. MINOR-ELEMENT contents in olivines have received...Hawaiia n phenocrysts would apply to those in the Azores rocks we have studied. The unexpected abnormal...however, show that this is not followed by the Azores olivines. We therefore discuss preliminary olivine-whole-rock |  | | Journal (article/letter/editorial) | | agricultural practices at Sete Cidades volcano (Azores, Portugal) J. Virgílio Cruz a,⇑, M.O. Silva b, M. Isabel...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 |  | | Journal (article/letter/editorial) | | - Geochemistry of Paleoproterozoic Depleted Santa Maria Chico Granulites Leo Afraneo Hartmann Instituto...processes of Brazil are investigated in the Santa Maria Chico Granulitic Complex of Rio Grande do Sul...registered in regional terrains correspond to the Santa Maria Chico Granulitic Complex from southernmost Brazil... Tocantins,Minas Gerais, Slo Paulo, Parand and Santa Catarina States (Almeida and Hasui, 1984). The nearest...exposed granulites to the studied complex occur in Santa Catarina (500 km to the north) as noted by Hartmann |  | | Journal (article/letter/editorial) | | bolivarite, 418 Azores Formigas Shoals, olivine, I65 Praia, Santa Maria 1., olivine, 165 Santa Maria, olivine...syenite (pulaskite), Ca-rich nepheline, 67o plagioclase, Zambia Central Province, talc-kyanite-quartz...Labrador, anorthosite, plagioclase, dense massive and pseudomorphous plagioclase glass, 51 I Penticton |  | | Journal (article/letter/editorial) | | com/locate/lithos Recent plate re-organization at the Azores Triple Junction: Evidence from combined geochemical... R. Costa Pinto, 165, 2770-047, Paço D'Arcos, Portugal e Centro de Geofísica de Évora and Dep. de Geociências...Ramalho, 59, 7000-671 Évora, Portugal f Universidade de Lisboa, Lisboa, Portugal b a r t i c l e i n f o...September 2014 Available online xxxx Keywords: Azores Triple Junction Geochemistry K/Ar dating Melt production...evidence contrasted modes of melt generation near the Azores Triple Junction during the last 1.3 Myr. The oldest |  | Beier, Christoph, Bach, Wolfgang, Busch, Alexander V., Genske, Felix S., Hübscher, Christian, Krumm, Stefan H. (2019) Extreme intensity of fluid-rock interaction during extensive intraplate volcanism. Geochimica et Cosmochimica Acta, 257. 26-48 doi:10.1016/j.gca.2019.04.017 | Journal (article/letter/editorial) | | lavas during their eruptive history. The submarine Azores Plateau in the Central Northern Atlantic has generally...basalts that correspond to a melting anomaly in the Azores. Our observations indicate that the extreme levels...magmatic activity during initial formation of the Azores Plateau and the tectonic regime providing pathways...oceanic plateaus. Keywords: large igneous province; Azores Plateau; water-rock reactions; ocean-crust exchange..., 2016). A substantial volume of the submarine Azores archipelago has been emplaced during arrival of |  | | Journal (article/letter/editorial) | | especially those of clinopyroxene (cpx) and plagioclase fractionation on the primary OIB chemistry, generally...g., Azores: Flores and Pico; Easter; Tristan da Cunha: Inaccessible; Galapagos: Genovesa and Santa Fe;...ocean islands. Island groups Atlantic Ocean basin Azores Balleny Cameroon Canary islands Cape Verde ...Reference Flores Faial Pico Terceira Sao Miguel Santa Maria Sabrina Sturge Principe São Tome Bioko/ Fernando...Rarotonga Easter Genovesa Roca Redonda Santa Fe San Cristobal Isabela Santa Cruz Santiago Espanola Floreana |  | | Journal (article/letter/editorial) | | Scotland, anaL, 819 Algarvia, SSo Miguel Island, Azores, olivine, I65 Alkalis, fractionation during spherulitic...Iceland, anal., 5o3 Anorthosite, Labrador, dense plagioclase glass in, Bertaghboy Bay, Canover, Connemara...FERNANDEZ(L. A.), Phenocrystic olivines from the eastern Azores, 165 Boulangerite, Cornwall, 767 BOUVIER(J. L.)...granite, 847 CURRIE(K. L.), Anomalous plagioclase glass and plagioclase from Mistastin Lake, Labrador, 511...anorthoclase, cleavelandite, microcline, orthoclase, plagioclase, potash feldspar Fenite, Scotland, anal., mode |  | de Lima, Evandro Fernandes, Machado, Adriane, Nardi, Lauro Valentim Stoll, Saldanha, Dejanira Luderitz, Azevedo, José Manuel Martins, Sommer, Carlos Augusto, Waichel, Breno Leitão, Chemale, Farid, de Almeida, Delia del Pilar Montecinos (2011) Geochemical evidence concerning sources and petrologic evolution of Faial Island, Central Azores. International Geology Review, 53 (14) 1684-1708 doi:10.1080/00206814.2010.496248 | Journal (article/letter/editorial) | | and petrologic evolution of Faial Island, Central Azores 1938-2839 Geology Review, 0020-6814 TIGR International...Geofísica da Universidade de Coimbra-CGUC, Coimbra, Portugal; cUniversidade Estadual do Oeste do Paraná (UNIOESTE)...Volcanic rocks that make up Faial Island, Central Azores, consist of four volcanostratigraphic units, with...were dominated by fractional crystallization of plagioclase ± clinopyroxene ± olivine ± titanomagnetite....sources very close to EMII-type OIB. Keywords: Azores archipelago; oceanic island volcanism; mantle sources; |  | Hildenbrand, Anthony, Madureira, Pedro, Marques, Fernando Ornelas, Cruz, Inês, Henry, Bernard, Silva, Pedro (2008) Multi-stage evolution of a sub-aerial volcanic ridge over the last 1.3 Myr: S. Jorge Island, Azores Triple Junction. Earth and Planetary Science Letters, 273 (3) 289-298 doi:10.1016/j.epsl.2008.06.041 | Journal (article/letter/editorial) | | volcanic ridge over the last 1.3 Myr: S. Jorge Island, Azores Triple Junction Anthony Hildenbrand a,⁎, Pedro...7000-671 Évora, Portugal Univ. Lisboa, Fac. Ciências, Dep. Geologia and CGUL/IDL, Lisboa, Portugal d Paleomagnetism...cedex, France e ISEL/DEC and IDL/CGUL, Lisboa, Portugal b c A R T I C L E I N F O Article history:...July 2008 Editor: R.W. Carlson Keywords: São Jorge Azores triple junction MAR K/Ar geochemistry volcanic...evolution of a linear ridge developed close to the Azores triple junction. We show that S. Jorge sub-aerial |  | | Report (issue) | | S. Geological Survey Volcanic Rocks of the Santa Maria Province, California Age and Tectonic Inferences...Area, Santa Barbara County, California Bulletin 1995-R, S Geophysical section offshore Santa Maria basin...basin Geologic section onshore Santa Maria basin USGS science fora changing world AVAILABILITY OF BOOKS...Mississippi-Bldg. 3101 Volcanic Rocks of the Santa Maria Province, California By RONALD B. COLE and RICHARD...Paleocene, and Eocene Strata, Big Pine Mountain Area, Santa Barbara County, California By JOHN G. VEDDER, RICHARD |  | | Report (issue) | | Lithotectonic Elements in the Basement of the Santa Maria Basin, California U.S. GEOLOGICAL SURVEY BULLETIN...Lithotectonic Elements in the Basement of the Santa Maria Basin, California By HUGH McLEAN U.S. GEOLOGICAL...BULLETIN 1995 EVOLUTION OF SEDIMENTARY BASINS SANTA MARIA PROVINCE U.S. DEPARTMENT OF THE INTERIOR MANUEL...lithotectonic elements in the basement of the Santa Maria Basin, California / by Hugh McLean. p. cm. (Evolution...(Evolution of sedimentary basins Santa Maria Province ; ch. B) (U.S. Geological Survey bulletin ; 1995) |  | | Report (issue) | | Geophysical section offshore Santa Maria basin Geologic section onshore Santa Maria basin AVAILABILITY OF...Member of the Lospe Formation (Lower Miocene), Santa Maria Basin, California By SAMUEL Y. JOHNSON and RICHARD...BASINS/ONSHORE OIL AND GAS INVESTIGATIONSSANTA MARIA PROVINCE Edited by Margaret A. Keller U.S. DEPARTMENT...member of the Lospe Formation (Lower Miocene), Santa Maria Basin, California / by Samuel Y. Johnson and...sedimentary basins/onshore oil and gas investigations Santa Maria Province ; ch. D, E) (U.S. Geological Survey |  | Johnson, Catherine L., Wijbrans, Jan R., Constable, Catherine G., Gee, Jeff, Staudigel, Hubert, Tauxe, Lisa, Forjaz, Victor-H., Salgueiro, Mário (1998) 40Ar/39Ar ages and paleomagnetism of São Miguel lavas, Azores. Earth and Planetary Science Letters, 160 (3) 637-649 doi:10.1016/s0012-821x(98)00117-4 | Journal (article/letter/editorial) | | Ar ages and paleomagnetism of São Miguel lavas, Azores Catherine L. Johnson a,Ł , Jan R. Wijbrans b ...Geociências, Ponta Delgada, São Miguel, Azores, Portugal Received 17 October 1997; revised version...and paleomagnetic data for São Miguel island, Azores. Paleomagnetic samples were obtained for 34 flows...secular variations; Ar-40=Ar-39; absolute age; Azores 1. Introduction Over the past three decades many...dating of lava flows from São Miguel island in the Azores. The abundance of Pleistocene and Pliocene volcanism |  | | Report (issue) | | along the Santa Ynez Fault Implications for the Geologic History of the Eastern Santa Maria Basin Area...Franciscan Strata, Santa Maria Basin Province, California Geophysical section offshore Santa Maria basin Geologic...Geologic section onshore Santa Maria basin U.S. GEOLOGICAL SURVEY BULLETIN 1995-HJ AVAILABILITY OF BOOKS...along the Santa Ynez Fault Implications for the Geologic History of the Eastern Santa Maria Basin Area...Argillaceous Great Valley and Franciscan Strata, Santa Maria Basin Province, California By RICHARD M. POLLASTRO |  | | Report (volume) | | 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...Miguel, Azores By RICHARD B. MOORE Prepared in cooperation with the Regional Government of the Azores U...late Quaternary stratovolcanoes on Sao Miguel, Azores I by Richard B. Moore. p. em. (U.S. Geological...Government of the Azores." Includes bibliographical references. 1. Volcanoes-Azores-Sao Miguel Island |
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