 | | Journal (article/letter/editorial) | | activity (Galeria da Queimada lava tube, Terceira, Azores) R . DA Z A∗ & M . A . BU S T I L L O Museo Nacional...L O Figure 1. (Colour online) (a) Location of Azores Islands in the tectonic context. (b) Location of...the Galeria da Queimada cave on Terceira Island (Azores). Modified from Nunes (2004). columns, gours and...of the Azores is located in the North Atlantic Ocean, about 1600 km west of Lisbon, Portugal. It comprises...Corvo to the west; Graciosa, Terceira, São Jorge, Pico and Faial in the centre; and São Miguel, Santa Maria |  | | Journal (article/letter/editorial) | | identical in appearance with those derived from aragonite shells and corals," and he further observes that...fourth section. Amongst the Oceanic Islands are the Azores, Bermuda, the Galapagos, St. Helena, and the Sandwich...sections must suffice. • 1. Oceanic Islands.—The Azores, which bear the same relation to Europe that the...Gulf-stream. They are 900 miles from the coast of Portugal, with a maximum depth of 2,500 fathoms intervening...unstable by reason of its composition ? It is true that Pico is 7,000 feet above the sea, though this is very |  | | Journal (issue) | | groundwater — India Groundwater salinization in Azores, Portugal Imprint Environmental Geology Environmental...about 250 km of southwestern Spain and southern Portugal (Fig. 1) with an average width of 30-40 km. The...Then Piedras estuary Guadiana Estuary PORTUGAL PORTUGAL Cases and solutions in the nineteenth ...010 0.021 0.0011 Zn 0.026 Saturation index Aragonite 17 [laboratory analyses] 0.083 7.01 Cerusite...+H{O=Ca*?+2 HCO; Cases and solutions metastable aragonite are possible carbonate phases. There are thermodynamic |  | Marques, A. F. A., Barriga, F., Chavagnac, V., Fouquet, Y. (2006) Mineralogy, geochemistry, and Nd isotope composition of the Rainbow hydrothermal field, Mid-Atlantic Ridge. Mineralium Deposita, 41 (1) 52-67 doi:10.1007/s00126-005-0040-8 | Journal (article/letter/editorial) | | Edifício C6, Piso 4, Campo Grande, Lisboa 1749-016, Portugal e-mail: afamarques@fc.ul.pt Tel.: +351-21-7500000... Graciosa Flores N Terceira Faial Pico São Jorge AZORES São Miguel Menez Gwen Formiga Lucky Strike...second-order segments at the MAR, south of the Azores Islands 54 ridge. The basalts at the ridge summit...deformation stage. euhedral, and radial prisms of aragonite occur along veins previously filled by sulfides...rodingite-like, serpentinized material in a matrix of aragonite, which appears to have extensively replaced former |  | | Journal (article/letter/editorial) | | after recrystallizing in radial aggregates of aragonite has subsequently inverted to calcite leaving "...Viana Crater, S. Vicente, but here the original aragonite is still present. There is a legend handed down...Montindor" (a term of Friedlander's which may be R. Pico of the Portuguese Survey) at 300 m. (BM 1915/130/845-6)...geologia do Arquipelago de Cabo Verde. Serv. Geol. de Portugal. (2) CROSSLAND, E., 1905. Oecology and deposits |  | | Journal (issue) | | 430-0080, who sells all three popular brands Cobra, Pico and Pionju - supplied the cu.rre.ot information...we have seen the importation of two drills. the Pico and the Pionj&r. The former is imported by the manufacturer...Pionjar - model 120, S3.690,57 pounds, Z9 inches; Pico - model 20. Sl.990. 22 pounds. 22 inches. These...handle; being smaller. with a smaller engine, the Pico is much more useful as a light duty drill. The Cobra...ST., PASADENA six inches per miaute iA granite. A Pico will drill about four inches of granite with a one |  | | Journal (article/letter/editorial) | | ROMARIZ 1181 Aufs~itze 35~ 25 ~ --40~ ; @. AZORES" -- ~. __3o~ C MADEIRA ~ , f ([" ~ SELVAGENS...(SAcco) dont le test se montre m6tamorphis~e en aragonite, rficolt6s ~t Ponta do E s e o r r e g a d e i...carbonatites were later discovered in the Ribeira de Pico (AssuN~AO, MACHADO & GOMES, 1965). These species...On the basis of age analogies determined for the Azores, Madeira and Porto Santo by MAYER-EYMAR(in HARTUNC...Santo, limestones occur as high as 340--850 m on Pico Juliana, in the NE, at elevations of 50--100 m in |  | | Journal (article/letter/editorial) | | Edifı́cio C6 – Piso 4, Campo Grande, 1749-016 Lisboa, Portugal FREDERICK JOSEPH WICKS Department of Natural...Edifı́cio C6 – Piso 4, Campo Grande, 1749-016 Lisboa, Portugal Instituto Dom Luiz (IDL) – Faculdade de Ciências...Edifı́cio C1 – Piso 0, Campo Grande, 1749-016 Lisboa, Portugal ABSTRACT The Rainbow hydrothermal field (36814...user 2 THE CANADIAN MINERALOGIST FIG. 1. The Azores sector of the Mid-Atlantic Ridge: location of the...Rainbow and Saldanha hydrothermal sites, between the Pico and Oceanographer Fracture Zones (inset). Map adapted |  | González-Alfaro, José, Vargas, Gabriel, Ortlieb, Luc, González, Gabriel, Ruiz, Sergio, Báez, Juan C., Mandeng-Yogo, Magloire, Caquineau, Sandrine, Álvarez, Gabriel, del Campo, Francisco, del Río, Ian (2018) Abrupt increase in the coastal uplift and earthquake rate since ∼40 ka at the northern Chile seismic gap in the Central Andes. Earth and Planetary Science Letters, 502. 32-45 doi:10.1016/j.epsl.2018.08.043 | Journal (article/letter/editorial) | | mineralogical analyses. Semi-quantitative estimations of aragonite and calcite mass percentages were performed using...whereas the inner layer (Fig. 3h) consists of 100% aragonite, except for MG9927-c observations in which traces...by consistent results obtained separately from aragonite and calcite mineralogical phases in addition to...from the PDF database for calcite (red bars) and aragonite (blue bars). The asterisk (*) indicates the diffraction...(Fig. 8c; Arz et al., 2007; Siddal et al., 2008; Pico et al., 2016). Because of this wide range, we compare |  | | Journal (article/letter/editorial) | | M.L. Lopez, S. Garcfa-Martin, A. Jerez, and C. Pico Departemento de Quimica Inorgdnica I, Facultad Ciencias...LaBO3> PrBO3 and NdBO3 are isostructural with aragonite (Bohlhoff et al, 1971). Finally, additional examples..., & Pico, C. (1988). Synth. Reac. Met. Org. Chem. 18(2), 119. Laureiro, Y., Veiga, M.L., & Pico, C. (1989)...L., Fernandez, F., Saez-Puche, R., Jerez, A., & Pico, C. (1990)./. I^ess Common Met. 157, 335. Pardo |  | Rodríguez-Berriguete, A., Alonso-Zarza, A.M., Cabrera, M.C., Rodriguez-Gonzalez, A. (2012) The Azuaje travertine: an example of aragonite deposition in a recent volcanic setting, N Gran Canaria Island, Spain. Sedimentary Geology, 277. 61-71 doi:10.1016/j.sedgeo.2012.07.010 | Journal (article/letter/editorial) | | com/locate/sedgeo The Azuaje travertine: an example of aragonite deposition in a recent volcanic setting, N Gran...August 2012 Editor: B. Jones Keywords: Travertine Aragonite Volcanic settings CO2 degassing Canary Islands...years BP. The travertine is composed mainly of aragonite in both perched systems on the gorge walls and...laminated facies are composed mostly of large fibrous aragonite crystals, while there are also common micritic...to be due to disequilibrium conditions during aragonite precipitation. Disequilibrium was likely caused |  | | Journal (article/letter/editorial) | | aenigmatite, ferropargasite, kaersutite, apatite, aragonite, calcite, leucite, fluorite and biotite in the...magmas by fractional crystallization (e.g. Teide-Pico, Tenerife (Ablay et al., 1998), Mount Erebus, Antarctica...fractionation together with some mixing and assimilation (Pico Teide series — Tenerife), AFC followed by fractional... 1998. Basanite–phonolite lineages of the Teide-Pico Viejo volcanic complex, Tenerife, Canary Islands...differentiation of peralkaline rhyolite, Terceira, Azores: a modern analogue of Strange Lake, Labrador. Canadian |  | | Journal (article/letter/editorial) | | the sample stage holder. oscilloscope (ADC-42, Pico Technology Ltd.) w hich connects the output of the...Intensity variation of the 112 reflection of aragonite (37.44° 2θ) in a φ -scan of Anadonta cygnea shell...responds to the reflection of {112} f aces of aragonite crystals (4-fold symmetry) that came into Bragg...Rail), 2) calcite from a tuf a deposit, and 3) aragonite from the shell of the bi valve Anadonta cygnea...for calcite and the 002 and 112 reflections for aragonite were recorded over almost a full hemisphere from |  | | Journal (article/letter/editorial) | | heterogeneous on all scales. 1 UTAD, Vila Real, Portugal (fpacheco@utad.pt) Utrecht University, The Netherlands...Centre (INETI/IGM), Apt.7586, 2721-866 Alfragide, Portugal (*correspondence: teresa.pena@ineti.pt) The environmental...in the abandoned mine of S. Domingos, southern Portugal (Iberian Pyrite Belt of polymetallic sulphide...Energy for Development 2007, October 10-12, Beja/Portugal. Extended abstract, 3pp. [2] Hertweck B., Giester...carbonate lost from dissolution of ankerite and aragonite form additional calcite, clearly evident in the |  | | Journal (article/letter/editorial) | | contain lawsonite. Two Type IIA blocks also contain aragonite (+calcite) in veins. Type IIB graphite-schists...Angeles 34 Little Pico Creek 22 Vista Point 2 35 40 N MN 41 Vista Point 1 44 37 Pico Creek 38 Hearst...numbers) according to type. Cal = calcite; Arg = aragonite. Thin sections revealed nine of the 30 graphite-schist...Ap = apatite; Ab = albite; Cal/Arg = calcite/aragonite; Chl = chlorite; Cal = carbonate; Ep = epidote;...Diffractometer at The University of Texas at Austin. Aragonite was detected in some samples (Fig. 1). Carbonate-filled |  | McANULTY, W. N., SEWELL, C. R., ATKINSON, D. R., RASBERRY, J. M. (1963) Aguachile Beryllium-Bearing Fluorspar District, Coahuila, Mexico. Geological Society of America Bulletin, 74 (6) 735 doi:10.1130/0016-7606(1963)74[735:abfdcm]2.0.co;2 | Journal (article/letter/editorial) | | municipality of Acuna, Coahuila, Mexico, south of Pico Etereo and between the Sierra del Carmen on the...exploration, and development district called Del Carmen-Pico Etereo (McAnulty, 1956). Only fluorspar deposits...on the south and disrupted by intrusions of the Pico Etereo complex 4J4 miles northwest, herein called...limonite. Minerals present in minor amounts include aragonite, powellite, adularia, kaolinite, gypsum, sericite...of younger beds, Terlingua (?), are present near Pico Etereo, a few miles north of the district, and still |  | Reynaud, Stéphanie, Ferrier-Pagès, Christine, Meibom, Anders, Mostefaoui, Smail, Mortlock, Richard, Fairbanks, Richard, Allemand, Denis (2007) Light and temperature effects on Sr/Ca and Mg/Ca ratios in the scleractinian coral Acropora sp. Geochimica et Cosmochimica Acta, 71 (2) 354-362 doi:10.1016/j.gca.2006.09.009 | Journal (article/letter/editorial) | | distribution of Sr (which is in solid solution in the aragonite crystal structure (Allison et al., 2005)) to be...coral skeleton (Meibom et al., 2004). Fibrous aragonite, which constitutes the bulk of the coral skeleton...correlated with the layered organization of the fibrous aragonite skeletal component. In contrast, although the...Holland (1969) Smith et al. (1979) Inorganique aragonite Montipora verrucosa Porites sp. Pocillopora damicornis...conducted experiments with inorganic precipitation of aragonite and found a drop in the solid-liquid partition |  | Walker, R. T., Telfer, M., Kahle, R. L., Dee, M. W., Kahle, B., Schwenninger, J.-L., Sloan, R. A., Watts, A. B. (2016) Rapid mantle-driven uplift along the Angolan margin in the late Quaternary. Nature Geoscience, 9 (12) 909-914 doi:10.1038/ngeo2835 | Journal (article/letter/editorial) | | proof: While this Article was in press, a paper (Pico, T., Mitrovica, J. X., Ferrier, K. L. & Braun, J...raised beaches of coastal Estremadura, central Portugal. Quat. Sci. Rev. 28, 3428–3447 (2009). 22. Dewar...care taken to ensure analysis of only endogenous aragonite. All of the carbonate samples prepared by ORAU...remove the outer surface and expose the nacreous aragonite. The presence of calcite (which may result from...arca (OxA-26336) shells included recrystallized aragonite is considered highly unlikely. However, to be |  | | Journal (article/letter/editorial) | | thickness, with the calcite oncalcite the outer and aragonite nacrenacre on the (Figure section across the shell...thickness, with the on thepart outer part and aragonite oninside the inside (Figure 1); subsequently,...similar specimens the outer region andaragonite aragonite nacre nacre (white) thethe inner region; from...perpendicular to the c-axis of both calcite and aragonite; (B) SEM from a section nearly perpendicular to...to the c-axis of both calcite and aragonite; (B) SEM image of an region of the of calcite showing general |  | | Book (edition) | | ... Agate—Laredo Area ................... Agate—Pico Ranch ..................... Agate—Zapata Area ....pscudomorph after aragonite crystals; and here also you can find agate covered aragonite crystals up to...direct you to the collecting area. 72 AGATE Pico Ranch When we were in Laredo we found a Mexican...piece of green moss agate. This ranch is called the Pico Ranch. To get to the ranch follow my map on the |  | Lustrino, Michele, Prelević, Dejan, Agostini, Samuele, Gaeta, Mario, Di Rocco, Tommaso, Stagno, Vincenzo, Capizzi, Luca Samuele (2016) Ca-rich carbonates associated with ultrabasic-ultramafic melts: Carbonatite or limestone xenoliths? A case study from the late Miocene Morron de Villamayor volcano (Calatrava Volcanic Field, central Spain) Geochimica et Cosmochimica Acta, 185. 477-497 doi:10.1016/j.gca.2016.02.026 | Journal (article/letter/editorial) | | circum-Mediterranean area. These rocks are important because aragonite of mantle origin has been reported as inclusion...tuffsite from Calatrava Volcanic Field (CVF), NE of Pico de la Zarza, is considered the smoking gun for the...presence of Ca-carbonate (calcite and more rarely aragonite) included in olivine macrocrysts in lava flows...high-pressure origin of the olivine containing calcite-aragonite inclusion Calatrava magmas evolved from high MgO...fresh glass in pyroclastic deposits from CVF (NE of Pico de la Zarza) as the proof of primary origin. Also |  | | Book | | ecoregion of Macaronesia, which also includes the Azores, Madeira, Cape Verde, and the Selvagem islands...Euler pole 20˚W 15˚W 10˚W 40˚N 40˚N Iberia Azores-Gib ralt ar Fa ult Ormonde (65-67 Ma) Ampère &...1.13). The three Macaronesian plumes (Canaries, Azores, and Cape Verde) are robust deep mantle features...the melting anomalies (plumes) beneath the AZ (Azores), CN (Canary), and CV (Cape Verde) archipelagos...stratocone Medieval (Teide) summit cone Flank stratocone (Pico Viejo) Pumice bed (Teide) Crater Explosion breccia |  | | Journal (article/letter/editorial) | | Re-evaluating boron speciation in biogenic calcite and aragonite using 11B MAS NMR . . . . . . . . . . . . . ....and U– Pa disequilibria; an example from Pico Island, Azores . . . . . . . . . . . . . . . . . . . . ...HUTTER: Compositional and morphological features of aragonite precipitated experimentally from seawater and...HITCHCOCK: Precipitation of amorphous CaCO3 (aragonite-like) by cyanobacteria: A STXM study of the influence...ventilation changes in the Indian Ocean as reflected by aragonite preservation and geochemical variations in Arabian |  | | Journal (article/letter/editorial) | | dolomitic limestone, cavities and geodes: acanthite, aragonite, calcite (fine scalenohedra at Stony Island and...elsewhere, geodes in the Warsaw Formation: ankerite, aragonite, barite (blue tabular, rosettes, Crystal Glen...anglesite (from surface exposure, Patrick Lead mine), aragonite (coatings on rhombohedral calcite, Deardorff mine)...quarry prior to 1981, 1 mi. W of Biggsville: aragonite (rare), calcite (several habits, many with inclusions)...white crystals from Bautsch orebody), ankerite, aragonite, aurichalcite, azurite, barite (white platy masses) |  | | Report (volume) | | 69 Fernando group ____:_____________________ 69 Pico formation (lower Pliocene) _____________ 70 Name...anticline____________________ 141 Pico anticline_____________ _______________ 144 Pico Canyon field_______________________...anticline_______________ 178 XVII. A, Axis of Pico anticline in Pico Canyon, Los Angeles County; B, Peg model...United States Geological Survey______ , 2. Map of Pico Canyon oil field, Los Angeles County, showing location...location of wells in relation to axis of Pico anticline_ 3. Map of Wiley Canyon oil field, Los Angeles |
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