Relevant bibliographies by topics / São Miguel (Azores)

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'São Miguel (Azores)'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'São Miguel (Azores).'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "São Miguel (Azores)"

1

Cole, P. D., G. Queiroz, N. Wallenstein, J. L. Gaspar, A. M. Duncan, and J. E. Guest. "An historic subplinian/phreatomagmatic eruption: the 1630 AD eruption of Furnas volcano, Sa˜o Miguel, Azores." Journal of Volcanology and Geothermal Research 69, no. 1-2 (December 1995): 117–35. http://dx.doi.org/10.1016/0377-0273(95)00033-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Zandomeneghi, Daria, Javier Almendros, Jesús M. Ibáñez, and Gilberto Saccorotti. "Seismic tomography of Central São Miguel, Azores." Physics of the Earth and Planetary Interiors 167, no. 1-2 (March 2008): 8–18. http://dx.doi.org/10.1016/j.pepi.2008.02.005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Wallenstein, Nicolau, Angus Duncan, David Chester, and Rui Marques. "Fogo Volcano (São Miguel, Azores): a hazardous edifice." Géomorphologie : relief, processus, environnement 13, no. 3 (October 1, 2007): 259–70. http://dx.doi.org/10.4000/geomorphologie.2853.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Guest, J. E., J. L. Gaspar, P. D. Cole, G. Queiroz, A. M. Duncan, N. Wallenstein, T. Ferreira, and J. M. Pacheco. "Volcanic geology of Furnas Volcano, São Miguel, Azores." Journal of Volcanology and Geothermal Research 92, no. 1-2 (September 1999): 1–29. http://dx.doi.org/10.1016/s0377-0273(99)00064-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Duncan, A. M., G. Queiroz, J. E. Guest, P. D. Cole, N. Wallenstein, and J. M. Pacheco. "The Povoação Ignimbrite, Furnas Volcano, São Miguel, Azores." Journal of Volcanology and Geothermal Research 92, no. 1-2 (September 1999): 55–65. http://dx.doi.org/10.1016/s0377-0273(99)00067-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Ponta, Delgada, and Miguel San. "OCTOBER 9–11, 2007—San Miguel Island, Azores." Endocrinology 148, no. 5 (May 1, 2007): 2334. http://dx.doi.org/10.1210/endo.148.5.9999.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Barbosa & Guimarães, Arquitectos. "Piscinas municipales de Povoaçao en Sao Miguel, Azores. Portugal." EN BLANCO. Revista de Arquitectura 4, no. 8 (November 29, 2016): 96. http://dx.doi.org/10.4995/eb.2012.6904.

Full text
Abstract:
<p>El pueblo de Povoação se sitúa en el Archipiélago de las Azores, en el extremo sur de la isla de San Miguel. Protegido del mar por la pendiente, el edifi cio va a ocupar una parcela formada por una plataforma llana y rectangular ya preparada y empleada por el Consejo Municipal para desempeñar actividades deportivas al exterior. Esta plataforma fue realizada sacrificando la pendiente, por la imposición de un corte que distorsionó su volumen natural.</p>
APA, Harvard, Vancouver, ISO, and other styles
8

Notcutt, Geoff, and Frances Davies. "Biomonitoring of volcanogenic fluoride, Furnas Caldera, São Miguel, Azores." Journal of Volcanology and Geothermal Research 92, no. 1-2 (September 1999): 209–14. http://dx.doi.org/10.1016/s0377-0273(99)00077-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Valadão, P., J. L. Gaspar, G. Queiroz, and T. Ferreira. "Landslides density map of S. Miguel Island, Azores archipelago." Natural Hazards and Earth System Sciences 2, no. 1/2 (June 30, 2002): 51–56. http://dx.doi.org/10.5194/nhess-2-51-2002.

Full text
Abstract:
Abstract. The Azores archipelago is located in the Atlantic Ocean and is composed of nine volcanic islands. S. Miguel, the largest one, is formed by three active, E-W trending, trachytic central volcanoes with caldera (Sete Cidades, Fogo and Furnas). Chains of basaltic cinder cones link those major volcanic structures. An inactive trachytic central volcano (Povoação) and an old basaltic volcanic complex (Nordeste) comprise the easternmost part of the island. Since the settlement of the island early in the 15th century, several destructive landslides triggered by catastrophic rainfall episodes, earthquakes and volcanic eruptions occurred in different areas of S. Miguel. One unique event killed thousands of people in 1522. Houses and bridges were destroyed, roads were cut, communications, water and energy supply systems became frequently disrupted and areas of fertile land were often buried by mud. Based on (1) historical documents, (2) aerial photographs and (3) field observations, landslide sites were plotted on a topographic map, in order to establish a landslide density map for the island. Data obtained showed that landslide hazard is higher on (1) the main central volcanoes where the thickness of unconsolidated pyroclastic deposits is considerable high and (2) the old basaltic volcanic complex, marked by deep gullies developed on thick sequences of lava flows. In these areas, caldera walls, fault scarps, steep valley margins and sea cliffs are potentially hazardous.
APA, Harvard, Vancouver, ISO, and other styles
10

Moore, Richard B. "Volcanic geology and eruption frequency, S�o Miguel, Azores." Bulletin of Volcanology 52, no. 8 (November 1990): 602–14. http://dx.doi.org/10.1007/bf00301211.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "São Miguel (Azores)"

1

Storey, Michael. "Petrology of volcanic rocks from Sao Miguel and Faial, Azores Islands." Thesis, Royal Holloway, University of London, 1985. http://repository.royalholloway.ac.uk/items/ac799f4c-b4d1-45c1-bf74-c9c54fa5822d/1/.

Full text
Abstract:
Volcanic rocks from Sao Miguel form two distinct alkaline (potassic) magma series. Recent eruptives comprise Ne-normative basalts and derivatives (Main Series). Older basalts associated with the extinct stratovolcano Povoacao are either Ne or Hy-normative (Povoacao Series ) and have lower P/Zr, Ba/Zr and Sr/Zr ratios. Faial volcanic rocks form a single series, basaltic compositions being Ne-normative. Differentiates on both islands range through intermediate compositions to metaluminous and peralkaline trachytes. The latter are strongly enriched in the incompatible elements (eg Th, Rb, Ta, Nb, Zr and the rare-earths) and are depleted in Mg, Ni, Cr, V, Ti, P, Sr, Eu and Ba. Fractional crystallization of the observed phenocryst assemblages can account for most chemical variations, incompatible element abundances indicating that the trachytes result from some 60--85% solidification of a parental basalt. Mixed-magma lavas occur on both Faial and Sao Miguel. They form two distinct groups. (1) M-type lavas. These have high Ni, Cr and MgO and low CaO, Sr, P2 O5, TiO2 and V. Modelling suggests they are a mix of trachyte (70%) and MgO-rich basalt (30%). (2). AM-type lavas. They show similar geochemical features but also have high Ba and Eu and large K/Rb ratios. They are best modelled by mixing hawaiite, trachyte and alkali feldspar. AM-type lavas and geochemically heterogeneous pumice deposits suggest compositionally zoned (basalt-intermediate-trachyte) magma chambers beneath both islands. Compositional variations in recent pumice deposits from Agua de Pau volcano show temporal control. Trends up the succession include the depletion of Sr, Ba and Eu coupled with stepwise enrichment in the incompatible elements. These suggest the deposits represent successive samples of an evolving body of trachytic magma. The lack of similar variations in the Furnas pumice succession is attributed to a high magma viscosity, inhibiting crystal/liquid fractionation. Pre-eruptive temperatures for trachytic pumice deposits, from coexisting magnetite and ilmenite, ranged between 960°C--880°C. fO 2 varied between 10-10.9--10-13.4. Thermodynamic-based estimates of magnetic water contents were between 6.5--7.2 wt.%. These values are compatible with field data. Estimates of S2, H2S, SO2, SO3, H2, CO2, HCl and HF suggest they are several orders of magnitude less abundant than H2O. Lastly, Azores basalts exhibit inter and intra-island compositional heterogeneity. Relative to N type m.o.r.b., they are characterized by high La/Yb, Ba/La, 87Sr/86Sr ratios and low 143Nd/ 144Nd, Zr/Nb, Zr/Ta and K/Rb ratios. Sao Miguel shows a systematic increase in 87Sr/86Sr ratios from west to east (up to 0.70522). Most of these features represent source characteristics and suggest a complexly heterogeneous mantle.
APA, Harvard, Vancouver, ISO, and other styles
2

Andersson, Thommy. "Geology of Lagoa das Furnas, a crater lake on São Miguel, Azores archipelago." Licentiate thesis, Stockholms universitet, Institutionen för geologiska vetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-126430.

Full text
Abstract:
In this thesis, the results from a geophysical mapping and coring campaign of Lagoa das Furnas are presented. Specific focus is placed on the origin of a subaqueous volcanic cone mapped in the southern part of the lake. Lagoa das Furnas is a crater lake within the Furnas volcanic centre which is located on the island of São Miguel in the Azores archipelago. The Furnas volcanic centre has a long history of earthquakes and volcanic activity. The area is relatively well-studied, except for the lake floor. Therefore, a high resolution geophysical and geological mapping survey was conducted at Lagoa das Furnas. Sidescan sonar was used to map the surface of the lake floor and single beam sonar was used to acquire sub-bottom profiles. In addition to the geophysical mapping, sediment surface sampling and core drilling were carried out followed by geochemical analyses of the retrieved material. The mapped data permitted a characterisation of the floor of Lagoa das Furnas and revealed several volcanic features including fumarole activity and a volcanic cone in the southern part of the lake. In order to unravel the origin of this cone several methods were applied, including analyses of tephra and minerals collected from the cone itself and from nearby deposits of two known eruptions Furnas I and Furnas 1630. Sedimentological, petrological, geochemical and geochronological studies of pyroclastic deposits from the cone suggest a subaqueous eruption linked to the Furnas 1630 eruption. The chemistry of glass and crystal fragments sampled from the cone suggests that it is composed of more evolved magma than that of the main Furnas 1630 implying that the lake cone is likely a product of the last eruptional phase. Historical documents reveal three lakes in Furnas valley before the 1630 eruption. Two of these lakes were lost due the eruption and the remaining lake is most likely Lagoa das Furnas and consequently did exist before the 1630 eruption.
APA, Harvard, Vancouver, ISO, and other styles
3

Jeffery, Adam John. "Petrogenesis and contrasting eruption styles of peralkaline silicic magmas from Terceira and São Miguel, Azores." Thesis, Keele University, 2016. http://eprints.keele.ac.uk/2477/.

Full text
Abstract:
The petrogenetic processes through which peralkaline silicic magmas are generated in oceanic island environments, as well as the controls on their eruptive behaviour, are not well understood. This study utilises two such systems, Pico Alto and Furnas, Azores, to elucidate the petrogenesis, storage conditions, and eruption of peralkaline silicic magmas, and employs a variety of complementary approaches, including petrographic analysis, whole rock and mineral chemistry, thermobarometry, and petrogenetic modelling. For both of the investigated systems, shallow-crustal, volatile-undersaturated fractional crystallisation of mantle-derived parental melts is the dominant mechanism of magmatic differentiation. Magma mixing and mingling processes are also shown to play a key role, with abundant evidence for mixing of trachytic magmas with either trachytic or mafic magmas. Furthermore, mingling between trachytic magmas and syenitic crystal mushes is recorded as enclaves in syenitic ejecta which represent the near-complete, in-situ crystallisation of trachytic magmas in a thermal boundary layer at the margins of a magma reservoir. Phase assemblages of the syenitic ejecta range from miaskitic to agpaitic, and include rare zirconosilicates such as eudialyite and dalyite. The observed compositional variability of dalyite is demonstrably linked to the compositional evolution of residual melt, coupled with a nucleation delay introduced by variable pore sizes. At both volcanic centres, peralkaline silicic magmas accumulate in shallow crustal reservoirs and develop vertical compositional zonation. These reservoirs inhibit the ascent and eruption of less evolved compositions, and generate a compositional Daly gap. Contrasting eruptive behaviour observed both within and between the volcanic centres of this study is shown to be linked primarily to the degree of pre-eruptive magma volatile undersaturation and, at Furnas, interaction with external water. The presented models provide new insights into peralkaline magmatic systems, and may be applicable to similar peralkaline silicic systems, both within the Azores archipelago, and at similar oceanic island settings worldwide.
APA, Harvard, Vancouver, ISO, and other styles
4

Rowland-Smith, Andrea. "The 1630 AD eruption of Furnas Volcano, São Miguel, Azores (Portugal): chemical variations and magmatic processes." Miami University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=miami1186143145.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Dias, Clara Sofia Madruga. "Contribuição para o estudo das micotoxicoses dos bovinos nas ilhas de São Miguel e Terceira." Master's thesis, Universidade de Évora, 2015. http://hdl.handle.net/10174/17636.

Full text
Abstract:
As micotoxicoses com maior expressão no arquipélago dos Açores são: a pitomicotoxicose, a aflatoxicose e o ergotismo. A escolha do tema de estudo recaiu sobre a pitomicotoxicose pela sua importância na produção agropecuária e consequente importância económica. A pitomicotoxicose ou eczema facial, como é vulgarmente conhecida, é uma micotoxicose provocada pela esporidesmina, micotoxina produzida pelo fungo Pithomyces chartarum. A esporidesmina ao ser ingerida provoca lesões hepatobiliares, tendo os animais onde estas são mais graves maior probabilidade de desenvolver fotossensibilidade secundária. A identificação de pitomicotoxicose nos Açores remonta ao início do milénio, tendo a partir desse momento sido criadas estratégias de monitorização e prevenção do desenvolvimento da doença. Nesta investigação desenvolveram-se dois estudos, nas Ilhas de S. Miguel e Terceira, um de cariz retrospetivo, sobre os bovinos que entraram nos matadouros com lesões agudas ou crónicas de fotossensibilidade, e outro pela avaliação presencial dos fígados de fêmeas paridas abatidas durante o período de estágio, de modo a relacionar os casos de fotossensibilidade e as lesões hepáticas com a ação da esporidesmina; Abstract: Contribution to the Study of Mycotoxicosis of Cattle in São Miguel and Terceira Islands Mycotoxicosis with higher expression in Azores archipelago are: pithomycotoxicosis, aflatoxicosis and ergotism. The choice of the study theme fell on the pithomycotoxicosis because of the major rule in the agriculture and animal production and therefore economic importance. The pithomycotoxicosis, commonly known as facial eczema, is a mycotoxicosis caused by sporidesmin, a mycotoxin produced by Pithomyces chartarum. When sporidesmin is ingested causes liver and bile duct damage, and those animals with most severe lesions are more prone to develop secondary photosensitivity. The identification of pithomycotoxicosis in Azores dates back to the beginning of the millennium, and since that moment have been created monitoring and prevention efforts to control the disease. This research have developed two studies, on the Islands of São Miguel and Terceira, a retrospective nature on cattle that entered the slaughterhouse with acute or chronic photosensitivity injuries, and the other one by the evaluation of the liver of calved females slaughtered during the probationary period in order to relate the cases of photosensitivity and liver damage with the action of sporidesmin.
APA, Harvard, Vancouver, ISO, and other styles
6

Capela, Luís Rafael Guerreiro. "Caracterização da produção caprina leiteira em São Miguel, Açores." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2017. http://hdl.handle.net/10400.5/14345.

Full text
Abstract:
Dissertação de Mestrado Integrado em Medicina Veterinária
O presente trabalho teve como objetivo a caracterização da produção caprina leiteira na ilha de São Miguel, Açores. Para isso foram analisados diversos parâmetros e fatores que influenciam e definem essa produção, nomeadamente, a localização das explorações, a área, o efetivo e a sua genética, os sistemas produtivos utilizados, as instalações, a ordenha, o controlo sanitário existente nas instalações, a alimentação, diversas operações de maneio e o destino do leite produzido, foi ainda realizada uma breve análise à rentabilidade nos diferentes sistemas. Os dados foram colhidos sob a forma de um inquérito implementado em 40 explorações caprinas com mais de 10 fêmeas adultas, e que representavam à altura do estudo 80 % das explorações de São Miguel que cumprem esse requisito. Observou-se que as explorações se encontram dispersas por toda a ilha, existindo duas concentrações, respetivamente na freguesia de Água de Alto e Água de Pau, sendo a área média das explorações de 14 ha +/- 24,1 com uma mediana de apenas 1,4 ha. Apesar de maioritariamente cruzado, o efetivo apresentou forte expressão das raças Saanen e Alpina, tendo em média 46 +/- 76 animais por exploração. O maneio nutricional não contempla as fases produtivas em 85% das explorações, o maneio reprodutivo revelou-se quase inexistente e a ordenha manual ainda é uma realidade em aproximadamente 70 % das explorações. As instalações pouco evoluídas, apresentaram baixas condições sanitárias, sendo a mortalidade nos cabritos superior a 50% em 42,5 % das explorações, constituindo o maior problema atualmente. A produção média diária do efetivo é aproximadamente de 2 +/- 0,9 L e a duração da lactação de 300 dias em 38 das 40 explorações. A vida produtiva dos animais revelou-se de 6,1 lactações por animal, no entanto algumas explorações atingem as 8 lactações, um claro sinal de problemas na reposição do efetivo. O principal destino do leite é o fabrico de queijos para venda. Os resultados alcançados demostram que o setor ainda se apresenta pouco profissionalizado e com reduzido carácter empresarial, apesar de existirem nos Açores condições edafoclimaticas apropriadas para esta produção.
ABSTRACT - The aim of the present work was to characterize the dairy goat production on São Miguel Island, (SMI) Azores. For this reason, a wide number of parameters and factors that influence and define this production were analyzed, namely the location of the farms, the area, the herd and their genetics, the production systems used, the facilities, the milking, the feeding, various operations and the destination of the milk produced. A brief analysis of the different production systems profitability was also performed. Data were collected through a survey conducted on 40 goat farms with more than 10 adult females and 80% of SMI farms fulfilled this requirement. It was observed that the farms were dispersed throughout the island, concentrating mainly in two areas: the parish of Água de Alto and Água de Pau, with a mean area of 14 +/- 24.11 with a median of 1,4 ha. Although mostly crossbred, the herd presented a strong expression of the Saanen and Alpina races, with a mean of 46 +/- 76 animals in the herds. 85% of farms did not show any different nutritional management according to the different phases of production, reproductive management was almost non-existent and manual milking was still a reality in 70% of farms. The poorly developed facilities had low sanitary conditions, and the mortality in kid goats was superior to 50% in 42,5 % of the farms, being the major issue currently. The average daily production of the herd was 2 +/- 0.9 L and the lactation duration of 300 days in 38 of the 40 farms. The average of the productive life was 6,1 lactations per animal, however, some farms reach 8 lactations, a clear sign of efective replacement problems. The main destination of milk was the manufacture of cheese. The results showed that this market is still not very professionalized and it has a small entrepreneurial nature, although Azores has suitable soil and climatic conditions appropriate for this production.
N/A
APA, Harvard, Vancouver, ISO, and other styles
7

Abreu, Luís Bernardo Costa Gomes de Brito e. "Empreendorismo turístico insular sustentável." Master's thesis, Universidade de Lisboa. Faculdade de Arquitetura, 2016. http://hdl.handle.net/10400.5/13557.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Rubio, de Inglés María Jesús. "Late Holocene Climate Variability in the North Atlantic based on biomarker reconstruction: The lake Azul (São Miguel, Azores archipielago) case." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/402145.

Full text
Abstract:
The principal objective of this PhD thesis is to obtain a high resolution reconstruction of the climate (temperature and precipitation) in the north Atlantic for the late Holocene. This new reconstruction is from a sedimentary lacustrine record located in Azores (Lake Azul) that has been compared and discussing with principal other climate reconstructions published on the North Atlantic region. Climate in the North Atlantic is modulated by the conjunction of atmospheric patterns and ocean dynamics. The main atmospheric pattern is the North Atlantic Oscillation (NAO) but, other climatic modes such as the Eastern Atlantic (EA) and the Atlantic Meridional Oscillation (AMO) are also present. The use of biomarkers has appeared as a cutting edge technique to reconstruct climate and their validity has been proved by previous works. The Azul lacustrine sedimentary sequence occupied the last 660 years, and on it has been applied a multiproxy study including: facies analysis, X-Ray Diffraction (XRD), X-Ray Fluorescense (XRF), Total Organic Carbon (TOC), Total Nitrogen (TN), bulk isotopes of Carbon (δ13C) and Nitrogen (δ15N) and biomarkers (GDGTs and δD leaf waxes). Facies were grouped in two main facies types according to the velocity of sedimentation and the organic matter origin: (1) “Continuous facies” accumulated by a more or less continuously sedimentation processes and dominated by lake organic matter, and (2) “rapid facies” deposited from flood events and transporting mainly terrestrial organic matter. An accurate age-depth model based on 14C and 210Pb dates and XRF data was built to figure out those sudden changes (the Dynamic Age Model, DAM). The DAM calculates the age of the samples redistributing the time along the profile according to the amount of crystalline terrestrial particulated material. DAM can acquire short and long-term sedimentation rate (SR) changes and previous models only acquire long- term fluctuations. The biomarkers (GDGTs and δD leaf waxes) were extracted and studied on the continuous lacustrine facies to reconstruct temperature and precipitation. The relative percentage of GDGTs was transferred into temperature by the use of Pearson et al., (2011) calibration. The climatic factor affecting δD fractionation was assessed by the weekly collection of rain water showing a clear depletion with the amount of precipitation. Results from realized reconstruction suggested a climatic model that converge oceanic currents with the principal atmospheric patterns, defining the NAO as the main factor triggering the others. The temperature in Azores depends on the position of the Gulf Stream (GS). A positive (negative) NAO phase enhances (reduces) the Gulf Stream (GS) velocity that increases (reduce) the amount of Eddies around Bermuda driving towards north (east) the GS and heating up high (medium) latitudes. Therefore, a negative phase of NAO favors the GS heat to reach Azores. Since the temperature in Azores is modulated by the oceanic circulation, the AMO also plays an important role. The AMO is reflected in Ponta Delgada by the amplitude between maximum and minimum mean annual temperatures, which means an increase on seasonality. The AMO positive phase is reflected as an increase on temperatures in Lake Azul reconstruction. Otherwise, the AMO negative phase is masked by other climatic patterns. The precipitation in Azores is mainly triggered by the NAO phase, increasing (decreasing) precipitation during NAO negative (positive). The comparison with other reconstructions in the North Atlantic area suggested that an increase of precipitation in São Miguel produces an increase at other Azorean islands, the Iberian Peninsula and Morocco. This pattern has been observed for the last 700 years except for the period comprised between 1680 and 1920 AD where a possible southeastern shift of the NAO south dipole seemed to be produced. We suggest that this movement is produced by the occurrence, simultaneously, of an in phase and positive NAO and EA conjunction.
APA, Harvard, Vancouver, ISO, and other styles
9

Le, Vaillant Maureen. "Understanding ecological tourism by different local business stakeholders: a case study of Sao Miguel." Thesis, Uppsala universitet, Industriell teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-416110.

Full text
Abstract:
Tourism represents 10.3% of the global GDP. Moving abroad for holidays has never been simpler and cheaper. Destinations answer tourist's demands, they build more hotel complex, create new fun activities, provide more resources. This way of life seems paradisiac for visitors; however it does not look that good for local communities. Often left aside by capitalist corporations, their resources and environment are depleting, crowds of visitors invade their space and unsustainability is deeply rooted. The result is the installation of more inequalities and gap between social classes. An alternative to this Pandora's box was created about 50 years ago, although it only started to develop recently, claiming it is the solution to most of our environmental tourism issues: ecotourism. If you look for this type of holidays, you will find the Azores. Eight award winner as a green destination. It was decided this research would focus on its biggest island: Sao Miguel. One will investigate what is the reality behind the green curtain. To do so, the learning of local stakeholders towards ecotourism and how it affects their current actions and their sight for the future of the island's tourism will be explored.
APA, Harvard, Vancouver, ISO, and other styles
10

Sibrant, Aurore. "Evolution of the Graciosa, S. Miguel and Santa Maria volcanic islands : implications for the Nubia-Eurasia plate boundary in the Azores." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112303/document.

Full text
Abstract:
L’archipel des Açores dans l’océan Atlantique est édifiées sur un épais plateau océanique, à proximité de la jonction triple entre les plaques Nord-américaine (Na), Nubienne (Nu) et Eurasienne (Eu). La formation du plateau et l’origine du volcanisme ont été le plus souvent attribués à la présence d’une instabilité mantellique. Cependant, la répartition et la morphologie des édifices volcaniques semblent avoir été grandement influencés par la déformation régionale liée à la migration de la frontière de plaque (Eu/Nu). En effet, la frontière serait passée d’une faille transformante aujourd’hui inactive, la zone de fracture est des Açores (EAFZ), à un rift ultra lent actif appelé le Rift de Terceira (TR).Lors de ce travail, nous utilisons le volcanisme comme marqueur de la déformation régionale. Nous nous intéressons particulièrement aux îles de S. Miguel et Graciosa, qui sont localisées à l’intérieur du TR, et à Santa Maria, une île volcanique éteinte qui se situe entre la EAFZ et le TR. De par leur position, ces trois îles constituent donc des cibles particulièrement appropriées afin d’étudier l’architecture et l’évolution de la frontière de plaque Eu/Nu durant les dernier Millions d’années. A partir de nouvelles données géomorphologiques, stratigraphiques, géochronologiques et tectoniques, couplées aux données bathymétriques et géophysiques disponibles, nous reconstruisons les étapes successives de construction et de démantèlement de ces îles puis discutons de leur signification géodynamique. Ces données sont ensuite complétées par des expériences de mécanique des fluides afin d’investiguer les liens possibles entre un panache mantellique, la migration de la frontière de plaque sur plusieurs échelles d’espace et de temps.Les résultats montrent que les édifices localisés dans le TR se construisent via des pulses volcaniques courts (<100 kyr) et relativement synchrones, séparés par des épisodes d’effondrements catastrophiques. Nous proposons qu’une telle évolution reflète des épisodes brefs et intenses de déformation régionale le long de la frontière de plaque active. La distribution des marqueurs tectoniques ainsi que leurs orientations N110 et N150 dans la partie Est de S. Miguel, nous conduit à proposer que l’extension oblique du TR est principalement accommodée par les failles bordières majeures du rift. Nous identifions une nouvelle tendance tectonique orientée N50° qui pourrait représenter des failles transformantes accommodant les variations d’obliquité du TR. L’activité de île de Santa Maria est ici datée entre 5.7 et 2.8 Ma. S. Maria a été façonnée par plusieurs effondrements sectoriels catastrophiques, le plus probablement déclenchés par les mouvements tectoniques régionaux. Nous identifions également une nouvelle structure de type graben reliant les îles de S. Maria et S. Jorge plus loin au NW. La forme de ce graben est semblable au TR et est située entre l’ancienne et la nouvelle frontière Eu/Nu. Nous interprétons ce graben comme un ancien rift transitionnel et donc comme une ancienne frontière de plaque Eu/Nu. A partir de nos données géochronologiques, nous proposons que la partie Est de ce rift transitionnel aurait migré vers la partie Est du TR entre 2.8 et 1.7 Ma.La migration de la frontière Eu/Nu a été interprétées par Vogt and Jung (2004) comme résultant de sauts successifs vers le NE de l’axe du Rift afin de maintenir sa position au dessus d’un point chaud fixe. Nos expériences de mécanique des fluides suggèrent que l’archipel des Açores, comme celui des Canaries, du Cap Vert, de Madère ainsi que les volcans sous marins de Great Meteor sont la signature en surface d’un groupe d’instabilités mantellique prenant naissance et remontant à partir du sommet d’un dôme thermochimique situé dans le manteau inférieur. De plus, Ces panaches secondaires pourraient être suffisamment faibles pour adapter leurs mouvements aux équilibres de forces pré-existants, notamment la structure et la morphologie de la lithosphère
The Azores archipelago in the Atlantic comprises nine volcanic islands which developed on a thick oceanic plateau close to the Triple Junction between the North American (Na), the Nubian (Nu), and the Eurasian (Eu) lithospheric plates. The formation of the plateau and the origin of the volcanism remain controversial, but have been generally attributed to a plume-like mantle instability. However, the distribution of the volcanic edifices east of the Mid-Atlantic Ridge (MAR) appears greatly influenced by regional deformation associated with the northward migration of the Eu/Nu plate boundary from an extinct old transform fault, the East Azores Fracture Zone (EAFZ), up to the presently active ultra-slow Terceira Rift (TR). In this thesis, we use the volcanism as a marker for regional deformation. We especially focus on S. Miguel and Graciosa, which are located within the TR, and on S. Maria, an old volcanically extinct island located between the EAFZ and the TR. These three islands thus constitute particularly suitable targets to track the architecture and the evolution of the Eu/Nu plate boundary during the last few Myr. From new geomorphological, stratigraphic, geochronologic, structural/tectonic data, and existing bathymetric and geophysical data, we reconstruct the successive stages of growth and destruction of the islands, and discuss their geodynamic meaning. These data are then complemented by fluid dynamic modelling using laboratory experiments to examine the possible links between mantle instability, plate boundary migration and the development of the volcanism on various spatial and temporal scales.The new results on the islands show that the edifices located within the TR grew through short (<100 kyr) and partly synchronous volcanic pulses, separated by catastrophic sector collapses. We propose that such evolution reflects brief and intense episodes of regional deformation along the still active Eu/Nu plate boundary. The distribution of tectonic markers and the recognition of N110 and N150 tectonic structures in eastern S. Miguel leads us to propose that oblique extension in the TR is mainly accommodated by the master faults of the rift, and that the TR is presently not the locus of appreciable sea-floor spreading. Furthermore, we identify a new N050 trend, which may represent transform faults accommodating the variation in obliquity of the TR. The activity of S. Maria is here dated between 5.7 and 2.8 Ma. Like the recent islands, S. Maria experienced catastrophic flank collapses, most probably triggered by regional tectonics. We identify a new graben structure linking Santa Maria to the island of S. Jorge further NW. The shape of this graben is similar to the TR and it is located between the EAFZ and the current plate boundary. We interpret this graben as a former transient rift, and therefore an old Eu/Nu plate boundary. From the new data, we propose that the eastern part of the transient rift migrated to the eastern part of the TR between 2.8 Ma and 1.7 Ma.The overall migration of the Eu/Nu plate boundary to the north and the creation of the Azores plateau has been interpreted by Vogt and Jung (2004) as resulting from successive NE jumps of the rift axis to maintain its position over a fixed ‘hotspot’. Our fluid mechanics experiments suggest that the Azores, as Canary, Cape Verde, Madeira Islands and Great Meteor seamounts might be the surface signature of a cluster of mantle instabilities rising from the top of a large thermochemical dome located in the lower mantle. However, such secondary plumes present a strong time-dependence 5-40 Myr time scale. Moreover, they could be sufficiently weak to adapt their motions to the pre-existing force balances and morphology of the lithosphere. We therefore present a scenario of the Azores area evolution combining a triple junction and decompression melting buoyant material (i.e. such in volatiles and/or temperature) under a thickening lithosphere
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "São Miguel (Azores)"

1

Stieglitz, Andreas. Landscapes of the Azores (São Miguel): A countryside guide. London: Sunflower, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

B, Moore Richard. Geology of three Late Quaternary stratovolcanoes on São Miguel, Azores. [Washington, D.C.]: U.S. G.P.O., 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Miranda, Sacuntala de. O ciclo da laranja e os "gentlemen farmers" da ilha de S. Miguel, 1780-1880. Ponta Delgada: Instituto Cultural de Ponta Delgada, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Miranda, Sacuntala de. O ciclo da laranja e os "gentlemen farmers" da Ilha de S. Miguel, 1780-1880. 2nd ed. Ponta Delgada, S. Miguel, Açores: Instituto Cultural de Ponta Delgada, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Tides of migration: A study of migration decision-making and social progress in São Miguel, Azores. New York: AMS Press, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Aguiar, Maria Margarida M. The school and immigration histories of women from the island of Sao Miguel in the Azores region of Portugal and its impact on their relationship with their children's education within Toronto's elementary school system. Ottawa: National Library of Canada, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

M, Duncan Angus, ed. Furnas volcano, São Miguel, Azores. Amsterdam ; New York: Elsevier, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Stieglitz, Andreas. Landscapes of the Azores (Sao Miguel) (Sunflower Countryside Guides). Hodder Headline Australia, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

1930-, Hoover Donald B., and Geological Survey (U.S.), eds. Preliminary report on electrical studies conducted during 1983 on São Miguel Island, Azores, Portugal. Denver, Colo: U.S. Dept. of the Interior, Geological Survey, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Preliminary report on electrical studies conducted during 1983 on São Miguel Island, Azores, Portugal. Denver, Colo: U.S. Dept. of the Interior, Geological Survey, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "São Miguel (Azores)"

1

Botelho, Andrea Z., and Ana C. Costa. "Shell occupancy of the intertidal hermit crab Clibanarius erythropus (Decapoda, Diogenidae) on São Miguel (Azores)." In Island, Ocean and Deep-Sea Biology, 111–17. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-017-1982-7_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Maciel Amaral, Paulo, Rui Marques, Isabel Duarte, and António Pinho. "Preliminary Analysis of Slope Instability Processes Triggered in the Guilherme Creek Watershed (Nordeste Municipality, S. Miguel Island, Azores)." In Advances in Natural Hazards and Hydrological Risks: Meeting the Challenge, 55–58. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-34397-2_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sequeira Braga, M. A., M. O. Figueiredo, M. I. Prudêncio, J. Delgado Rodrigues, C. A. S. Alves, D. Costa, T. Silva, et al. "Trachyte stones in monuments of the São Miguel and Terceira Islands, Azores (Portugal)." In Proceedings of the 9th International Congress on Deterioration and Conservation of Stone, 235–45. Elsevier, 2000. http://dx.doi.org/10.1016/b978-044450517-0/50105-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Prudêncio, M. I., M. Nasraoui, M. J. Trindade, M. A. Sequeira Braga, and M. O. Figueiredo. "Secondary phosphate phases in altered trachyte from S. Miguel Island (Azores, Portugal)—A possible contribution to the stone degradation." In Proceedings of the 9th International Congress on Deterioration and Conservation of Stone, 165–70. Elsevier, 2000. http://dx.doi.org/10.1016/b978-044450517-0/50097-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

"Participatory planning for the definition of sustainable mobility strategies in small islands: a case study in São Miguel Island (Azores, Portugal)." In Sustainable Transportation in Natural and Protected Areas, 197–208. Routledge, 2015. http://dx.doi.org/10.4324/9781315765396-23.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "São Miguel (Azores)"

1

de Tarso L Menezes, Paulo, Jandyr M. Travassos, and Fernando Monteiro Santos. "Eletromagnetic Imaging of Sete Cidades Volcano, São Miguel, Azores." In Simpósio Brasileiro de Geofísica. Sociedade Brasileira de Geofísica, 2008. http://dx.doi.org/10.22564/3simbgf2008.053.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

de Tarso L. Menezes, Paulo, Jandyr M. Travassos, Fernando Santos, and Simone Andre. "Magnetotelluric Imaging of Sete Cidades Volcano, São Miguel Island, Azores." In 8th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 2003. http://dx.doi.org/10.3997/2214-4609-pdb.168.arq_771.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ruttor, Saskia, Oliver Nebel, Helen Williams, Christoph Beier, Marianne Richter, Yona Nebel-Jacobsen, René Romer, and Simon Turner. "Stable Iron Isotopes as a Tracer for the Mantle Components ‘FOZO a and B’ at São Miguel, Azores." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.2251.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Gil, Artur, and Mohamed Abadi. "Using very high resolution satellite imagery for land cover mapping in Pico Da Vara Nature Reserve (S. Miguel Island, Archipelago of the Azores, Portugal)." In IGARSS 2015 - 2015 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2015. http://dx.doi.org/10.1109/igarss.2015.7326531.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "São Miguel (Azores)"

1

Geologic map of Sao Miguel, Azores. US Geological Survey, 1991. http://dx.doi.org/10.3133/i2007.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Geology of three late Quaternary stratovolcanoes on Sao Miguel, Azores. US Geological Survey, 1991. http://dx.doi.org/10.3133/b1900.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'São Miguel (Azores)' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography