306 research outputs found
Jacques de Baux, Lord of Corfu : 1381-1382
No full textThe island of Corfu, dominated from 1294 on by the Angevin princesof Tarent, passed in 1373 under the direct control of Joan I, queen of Naples.The political crisis in the kingdom of Naples (1380-1381) provided Jacquesde Baux, heir of Philip II of Tarent, with the opportunity to establish hisauthority on the principality of Tarent as well as on Corfu.On the occasion of the publication of the earliest available evidenceabout Jacques'administration in Corfu, the author deals with that prince’slordship on the island.During Jacques’ short domination on Corfu and while his attitude towardsthe new king of Naples, Charles III, was hostile, Venice showed a vividinterest in the acquisition of the island. As the local aristocracy was in badterms with Jacques’officials, a revolt broke out in Corfu (May 1382) occasioningthe abolition of his authority and the restoration of the dominion of thethrone of Naples over the island
Synsedimentary ash rains and paleoenvironmental conditions during the deposition of the Chachil Formation (Pliensbachian) at its type locality, Neuquén Basin, Argentina
No full textA detailed sedimentological analysis of the so called “Chachil Limestones” at its type locality around the Mirador del Chachil area, southwestern Neuquen province, Argentina, is presented in this paper for the first time. It is based on a macro/microfacial analysis and their environmental interpretation by means on texture, fabric, bioclasts, intrabasinal and extrabasinal grain amounts, sedimentary structures, bioturbations and hydro-dynamism. Because of the recognition of different facies associations, but no pure limestones, it is more suitable to refer these sediments as the Chachil Formation. The depositional environment of this unit is interpreted to correspond to an internal platform dominated by tides, with carbonate sedimentation disturbed by repeated explosive volcanic episodes, which reduced the sedimentation space, causing retrogradation of the sedimentary system and coastal onlap. In addition, a new recalibration of the U-Pb zircon dating used for the geochronological analysis reveals a small change with regard to previous information that has been used to recalculate the data, is presented in this paper.Fil: Armella, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; ArgentinaFil: Leanza, Hector Armando. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Corfu, Fernando. University of Oslo; Norueg
Protracted localization of metamorphism and deformation in a heterogeneous lower-crustal shear zone
No full textDeformation of the continental crust is influenced by the pre-existing structural framework, fluid availability, strain rate, and pressure-temperature conditions. We investigate the evolution of a large (hundreds-of-meters wide) heterogeneous shear zone and associated brittle and ductile deformation structures (Lofoten, Norway) using structural analysis, mineral-chemical and microstructural observations, and U-Pb dating. The shear zone developed through a sequence of metamorphic stages: (1) migmatization and granulite-facies metamorphism, (2) eclogite-facies metamorphism, and (3) amphibolite-facies metamorphism. Stage (1) was related to magmatic activity at lower-crustal conditions prior to 1.7 Ga. Stage (2) likely occurred during the early phases of the collision between Baltica and Laurentia (Caledonian collision). Stage (3) was related to shortening during the main phase of the Caledonian collision (-430-400 Ma) and was accompanied by hydration of the shear zone. We demonstrate how mechanical heterogeneities influence the deformation style from the centimeter to meter scale. Zones with a pre-existing fabric deformed by ductile shearing and folding, whereas homogeneous, dry rocks fractured. Fractures provided precursors for small-scale shear zones. These contrasting deformation styles occurred repeatedly. Consequently, pre-existing structures define the deformation style and serve as conduits for the channelization of fluids over extended periods of time
Clinopyroxene-Rutile phyllonites from the East Tenda Shear Zone (Alpine Corsica, France): pressure-temperature-time constraints to the Alpine reworking of Variscan Corsica
No full text""The East Tenda Shear Zone is the regional structure that marks the Alpine overthrusting of the Ligurian–. Piedmontese ocean onto the Variscan Corsica. We present the first report of a Na-pyroxene (acmite)–. rutile-bearing assemblage from a phyllonitic shear zone that occurs within the gneissic lithologies of the East. Tenda Shear Zone. Acmite hosts inclusions of Na-amphibole and titanite, and is rimmed by retrogressive. biotite. Forward modelling of the shear zone assemblages in the NCKFMASTho chemical system indicates. a cold burial–exhumation path (palaeogeothermal gradient <10 °C km−1) and a metamorphic climax with. minimum pressure of 1.2 GPa and temperatures of 350–400 °C. U–Pb thermal ionization mass spectrometry. analyses on synkinematic rutile yield a 3D array with an age of 48 ± 18 Ma (MSWD 7.3), whereas coexisting. acmite–phengite and coatings of oxides or sulphides provide an intercept at 54 ± 8 Ma (MSWD = 48).. The scatter of the arrays is considered to reflect secondary disturbances of the system and the age provided. by acmite–phengite and the coatings at 54 ± 8 Ma is considered the most reliable estimate for shear zone. formation. Implications of these new metamorphic and geochronological data are discussed in the regional. framework of the Alpine geology and integrated in the plate-tectonic scenario of the central Mediterranean."
U–Pb zircon geochronology of the Ligurian ophiolites (Northern Apennine, Italy) : implications for continental breakup to slow seafloor spreading
No full textFragments of Jurassic oceanic crust exposed in the Northern Apennine (Italy) are either associated with continen- tal lithosphere material (External Ligurian ophiolites), or bear structural and compositional resemblances to slow spreading ridge crust (Internal Ligurian ophiolites). To acquire new information about the transition from conti- nental breakup to slow seafloor spreading, we carried out a U–Pb geochronological study of zircons from gabbro bodies of both External and Internal Ligurian ophiolites. Zircons were separated from seven samples and ana- lyzed for U–Pb isotopes by laser ablation ICPMS and isotope dilution TIMS. The zircons were also investigated for morphology, internal structures, inclusions and chemistry. These characteristics reveal remarkable similari- ties to zircons collected from modern oceanic crust. Taken as a whole, the new U–Pb zircon dates obtained for the Ligurian ophiolites range from ~165 to ~161 Ma, thereby arguing against previous geochronological investi- gations suggesting a period of ~26 Ma for the formation of the Ligurian gabbroic crust. The time interval inter- vened from onset of gabbroic crust formation to configuration of a “slow spreading ridge type” crust was most likely ≤ 5 Ma. New insights into the opening mechanisms of the fossil, slow seafloor spreading basin are provided
Structure and evolution of volcanic plumbing systems in fold-and-thrust belts: A case study of the Cerro Negro de Tricao Malal, Neuquén Province, Argentina
No full textMagma ascent and emplacement in compressional tectonic settings remain poorly understood. Geophysical studies show that volcanic plumbing systems in compressional environments are vertically partitioned into a deep level subject to regional compression and a shallow level subject to local extension. Such vertical partitioning has also been documented for the plumbing systems of mud volcanoes, implying common, yet unresolved, underlying processes. In order to better constrain the mechanisms governing this depth partitioning of emplacement mechanisms, we studied the structure and evolution of the Cerro Negro intrusive complex emplaced in the Chos Malal fold-and-thrust belt in the foothills of the Neuquén Andes, Argentina. The Cerro Negro intrusive complex consists of sills and N-S–striking dikes that crosscut the sills. The most prominent structures in the study area are N-S–trending folds, and both E- and W-vergent thrusts. We provide new U-Pb ages of 11.63 ± 0.20 Ma and 11.58 ± 0.18 Ma for sills and 11.55 ± 0.06 Ma for a dike, which show that the Cerro Negro intrusive complex was emplaced in a short period of time. Our ages and field observations demonstrate that the emplacement of the Cerro Negro intrusive complex was coeval with the tectonic development of the Chos Malal fold-and-thrust belt. This implies that the dikes were emplaced perpendicular to the main shortening direction. The systematic locations of the dikes at the anticlinal hinges suggest that their emplacement was controlled by local, shallow stresses related to outer-arc stretching at the anticlinal hinge. We conclude that folding-related outer-arc stretching is one mechanism responsible for the vertical partitioning of igneous plumbing systems in compressional tectonic settings.Fil: Gürer, Derya. University of Oslo; NoruegaFil: Galland, Olivier. University of Oslo; NoruegaFil: Fernando Corfu. University of Oslo; NoruegaFil: Leanza, Hector Armando. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales ; ArgentinaFil: Sassier, Caroline. University of Oslo; Norueg
Mentalities and behaviours of the feudal class of Corfu during the late middle ages
No full textSince the Greek island of Corfu passed under the rule of western powersin 1258, social phenomena analogous to the ones met with in contemporaryItaly were developped in the local society.In this paper the author traces the origins of the formation of the rulingclass of Corfu in the late middle ages. The ephemeral political activities of thelocal aristocracy is considered as a result of its insecurities about its future,while special reference is made to the initial unfitness of its members to adjusttheir feudal mentalities and behaviours with the new, professedly democratic,rule of Venise. As with the boost of trade in Corfu the emerging bourgeoisclass claims a more prominent role in the local society, new insecurities seemto imperil the social prevalence of the aristocracy. Consequently its members try to keep the organised Communitas Corphiensis under their control, withthe purpose to safeguard their privileged status in the local society
Corfu Crisis of 1923: Occupation of Kerkyra in Context of Italian Policy in Eastern Mediterranean
No full textThe history of the Italian occupation of the island of Kerkyra (Corfu), one of the Ionian Islands currently part of Greece, is considered. The period after 1912 when Italy, having won a military victory over the Ottoman Empire, occupied Libya and the Dodecanese Islands is characterized. It is noted that at this time another goal of Italian foreign policy in the Mediterranean was Albania, independence of which was proclaimed in 1912, and the adjacent Islands of the Ionian archipelago. The author of the article dwells on the fact that the signing of the Treaty of Lausanne of 1923, which finally secured the possession of the Dodecanese Islands for Italy, allowed Italy to intensify its policy in the Ionian sea region. The author was able to identify the main stages of the diplomatic struggle over the occupation of the island of Corfu, to show the special interest of Italy in resolving the issue of Corfu outside the structures of the new international organization - the League of Nations. It is proved that the final withdrawal of Italian troops from the occupied island was the result of negotiations between Italy, Britain and France, while the opinion of Greece was practically not taken into account. The article is based on Italian and British official publications of diplomatic documents
[l'Isola di Corfu] / [gravée par] Fernando Bertelli
No full textÉchelle(s) : [Échelle non déterminable]Appartient à l’ensemble documentaire : AnvilGrAppartient à l’ensemble documentaire : MAEDI008Appartient à l’ensemble documentaire : MAEDIGen
Memory in Narration: Corfu in the Works of Gerald Durrell
No full textThis thesis explores the way in which the British writer and zoologist Gerald Durrell constructs the Greek island Corfu, where he had spent a part of his childhood prior to the Second World War, in his autobiographical works. The analysis assumes that Corfu can be perceived as a site of memory according to Pierre Nora's definition. The aim is to determine the nature of this subjectively conceived island, based on Durrell's works. The thesis first identifies a relatively unexplored area of research on memory in literature using narratology, and then, using content thematic and narratological analysis, reveals two ways of the author's creation of his memory of Corfu. The first part identifies four global themes, that together with the lower-level themes correspond with David Seamon's triad of dimensions used to establish the relationship of a person and a place. The second part observes a loose chronology of narration, which allows the described Corfu to be defined as an idyllic chronotope (space-time). It also finds a frequent overlap of the narrative and the content version of the island. The thesis discovers a predominantly positive tone of Durrell's Corfu. The narration portrays the island as a distinctive space, impacting its inhabitants and newcomers alike, and as a home, where the author spent...Diplomová práce se zabývá způsobem, jakým britský spisovatel a zoolog Gerald Durrell ve svém autobiografickém díle konstruuje řecký ostrov Korfu, na kterém strávil část dětství před druhou světovou válkou. Analýza předpokládá, že Korfu lze nahlížet jako místo paměti podle definice Pierra Nory, přičemž cílem je určit povahu takto subjektivně pojatého ostrova na základě Durrellových knih. Práce nejprve identifikuje doposud chabě probádanou oblast výzkumu paměti v literatuře za pomoci naratologie a poté obsahovou tematickou a naratologickou analýzou odhaluje dva způsoby, jakými autor v knihách vzpomínku na Korfu utváří. První část identifikuje čtyři globální témata, která s tématy nižší úrovně analýzy odpovídají dimenzím z triády k určení vztahu člověka a místa podle Davida Seamona. Druhá část pozoruje volnou chronologii vyprávění, čímž umožňuje vymezit popisované Korfu jako idylický chronotop (časoprostor), a zároveň nachází častý překryv narativního a obsahového pojetí ostrova. Práce odhaluje převážně pozitivní ladění Durrellova Korfu. Vyprávění utváří ostrov jako osobitý prostor, který působí na své obyvatele i na nově příchozí, a jako domov, ve kterém autor trávil čas s rodinou, přáteli a zvířaty. Toto Korfu je nostalgizovaným uzavřeným místem, které Durrellovi poskytlo osvobození od jeho...Department of German and Austrian StudiesKatedra německých a rakouských studiíFaculty of Social SciencesFakulta sociálních vě
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