Volcanological and petrological evolution of Vulcano island (Aeolian Arc, southern Tyrrhenian Sea)

Astis, G. De; Volpe, L. La; Peccerillo, Angelo; Civetta, L.

doi:10.1029/96jb03735

Cited by 171 publications

(225 citation statements)

References 42 publications

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“…Piano Caldera was filled up with tephritic and trachybasaltic lavas, and their pyroclastic deposits by later volcanic activity. About 24 ka ago, the Lentia volcanic complex was formed by rhyolitic lava with subordinated latic and trachytic lavas north of South Vulcano (De Astis et al, 1997). After 15 ka, the collapse of the complex occurred and Fossa Caldera was formed.…”

Section: Vulcanomentioning

confidence: 99%

High-resolution aeromagnetic anomaly map of the Vulcano-Lipari volcanic complex, Aeolian Islands, Italy

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et al. 2006

Bull. Geol. Surv. Japan

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Section: Vulcanomentioning

confidence: 99%

High-resolution aeromagnetic anomaly map of the Vulcano-Lipari volcanic complex, Aeolian Islands, Italy

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et al. 2006

Bull. Geol. Surv. Japan

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“…AFC processes in these reservoirs were the prevailing mechanism of magmatic compositional evolution, with formation of abundant acidic rocks. It is important to note that whereas Alicudi and Filicudi consist entirely of mafic and intermediate magmas with a few dacites, rhyolitic rocks occur at Salina during the late stages of activity and are abundant at Vulcano [54]. 18 O for the Filicudi clinopyroxenes (full circles) and for some Aeolian islands.…”

Section: Comparison With Nearby Aeolian Islands Of Alicudi and Salinamentioning

confidence: 99%

Oxygen Isotopic Variations in the Clinopyroxene from the Filicudi Volcanic Rocks (Aeolian Islands, Italy): Implications for Open-System Magma Evolution

Santo¹,

Peccerillo²

2008

TOMJ

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Oxygen isotope data are reported for clinopyroxene phenocrysts from volcanic rock samples from Filicudi island, Italy, with the aim of investigating mechanisms of magma evolution and mantle source characteristics in a continental arc volcano. Filicudi rocks range from calc-alkaline basalt to high-K andesite and dacite. Mafic rocks have MgO 6-7 wt%, Mg# 60, Ni < 50 ppm and Cr < 200 ppm, suggesting they represent evolved melts from more primitive mantle-derived parents. Variations of Sr-Nd isotope ratios against silica and MgO suggest magma evolution under opensystem. Oxygen isotope ratios on clinopyroxene phenocrysts from representative rocks are in the range 18 O cpx = + 5.37 to + 6.20 ‰ SMOW, corresponding to 18 O melt = + 5.6 to + 6.4 ‰ and display an overall, but poorly defined, positive correlation with 87 Sr/ 86 Sr and MgO and a rough negative correlation with SiO 2 . Basalts exhibit the highest 18 O cpx values for the volcanic series studied. Together, major, trace element and isotopic data indicate complex, multistage polybaric evolutionary processes for the Filicudi magmas. A process of fractional crystallisation, accompanied by variable degrees of crustal assimilation, best explains the isotopic and petrological data of the Filicudi volcanics. Evolution processes are inferred to have occurred in distinct magma reservoirs sited at different depths. Magma contamination affected basalts more extensively than andesitic and dacitic magmas. This was a consequence of the higher temperature and lower viscosity of mafic melts that were able to assimilate higher amounts of crustal wall rocks. Therefore, andesites and dacites preserved stable and radiogenic isotopic compositions more closely than basalts. Combined trace element and isotopic data suggest that primitive magmas at Filicudi were generated in a heterogeneous and metasomatised mantle source, which underwent contamination by slab-derived fluids. When compared with the nearby islands, isotopic variations of Filicudi rocks resemble more closely those found at Alicudi than at Salina and Vulcano. This suggests that the same kind of evolutionary processes occurred in the western island of Filicudi and Alicudi, whereas at Salina and Vulcano, in the central arc, magmas typically evolved by AFC processes, generating derivative melts that display higher Sr-O isotope compositions compared to parent basalts. These contrasting styles of magma evolution may be related to different structures of the plumbing systems of volcanic islands that were constructed in different sectors of the arc.

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“…Eruptive activity of Vulcano has been characterized by a SSE to NNW migration of the eruptive centers: the primordial Vulcano (120-100 ka), the Lentia complex (28-13 ka), La Fossa cone (6 ka to 1888-1890 A.D.) and Vulcanello (183 B.C. to 1550 A.D.) [25]. Historical eruptions on the island have taken place at Vulcanello and La Fossa cone (391 m a.s.l.…”

Section: The Case Study: Vulcano Islandmentioning

confidence: 99%

Remote Sensing and Geodetic Measurements for Volcanic Slope Monitoring: Surface Variations Measured at Northern Flank of La Fossa Cone (Vulcano Island, Italy)

et al. 2013

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Abstract:Results of recent monitoring activities on potentially unstable areas of the NW volcano flank of La Fossa cone (Vulcano Island, Italy) are shown here. They are obtained by integration of data by aerial photogrammetry, terrestrial laser scanning (TLS) and GPS taken in the 1996-2011 time span. A comparison between multi-temporal models built from remote sensing data (photogrammetry and TLS) highlights areas characterized by ~7-10 cm/y positive differences (i.e., elevation increase) in the upper crown of the slope. The GPS measurements confirm these results. Areas characterized by negative differences, related to both mass collapses or small surface lowering, also exist. The higher differences, positive and negative, are always observed in zones affected by higher fumarolic activity. In the 2010-2012 time span, ground motions in the northern part of the crater rim, immediately above the upper part of observed area, are also observed. The results show different trends for both vertical and horizontal displacements of points distributed along the rim, with a magnitude of some centimeters, thus revealing a complex kinematics. A slope stability analysis shows that the safety factors estimated from these data do not

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Volcanological and petrological evolution of Vulcano island (Aeolian Arc, southern Tyrrhenian Sea)

Cited by 171 publications

References 42 publications

High-resolution aeromagnetic anomaly map of the Vulcano-Lipari volcanic complex, Aeolian Islands, Italy

High-resolution aeromagnetic anomaly map of the Vulcano-Lipari volcanic complex, Aeolian Islands, Italy

Oxygen Isotopic Variations in the Clinopyroxene from the Filicudi Volcanic Rocks (Aeolian Islands, Italy): Implications for Open-System Magma Evolution

Remote Sensing and Geodetic Measurements for Volcanic Slope Monitoring: Surface Variations Measured at Northern Flank of La Fossa Cone (Vulcano Island, Italy)

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