Intra-Grain Sr Isotope Evidence for Crystal Recycling and Multiple Magma Reservoirs in the Recent Activity of Stromboli Volcano, Southern Italy

Francalanci, L.; Davies, Gareth R.; Lustenhouwer, W. J.; Tommasini, Simone; Mason, Paul R.D.; Conticelli, Sandro

doi:10.1093/petrology/egi045

Cited by 86 publications

(68 citation statements)

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“…11 and the sketch of this crystal in Fig.12). Furthermore, the same situation also occurred in the 1985 lava sample of Francalanci et al (2005) Figs. 5-7), also includes low Sr-isotope crystal zones, crystallised by LP-magmas throughout the entire history of the mineral.…”

Section: Significance Of the Low Sr-isotope Crystal Zonessupporting

confidence: 62%

“…Several recent papers have allowed improving the knowledge of the behaviour of the present-day magmatic system of Stromboli (e.g., Allard et al, 1994Allard et al, , 2010Francalanci et al, 1999Francalanci et al, , 2004Francalanci et al, , 2005Métrich et al, 2001Métrich et al, , 2005Métrich et al, , 2010Landi et al, 2004;Bertagnini et al, 1999Bertagnini et al, , 2008 and reference therein), but little is still known on the detailed processes controlling the change from the typical mild explosive activity to the more vigorous paroxysms and lava flow eruptions. In particular, previous works focussed on Sr isotope ratios and on micro-Sr isotope analyses have pointed out the importance of these data in understanding the dynamics of the present-day volcanic system of Stromboli, and the presence of complex mineral/liquid Sr-isotope disequilibria in products erupted between 1984 and 1996 AD (Francalanci et al, 1999.…”

Section: This Paper Reports the Results Of In-situmentioning

confidence: 99%

“…LP-magmas are slightly less evolved than the HP-magmas, with lower silica and K 2 O contents (about 1 wt% and 0.5 wt% of difference, respectively). HP-magmas have slightly higher incompatible trace element contents, except for Sr, and slightly lower MgO, Co, Ni, V, and Sc abundances than LP-magmas (Rosi et al, 2000;Francalanci et al, 2004Francalanci et al, , 2005Bertagnini et al, 2008).…”

Section: Petrochemical Backgroundmentioning

confidence: 88%

“…Further crystallisation driven by degassing, indeed, is considered to occur in the conduit during the ascent of magma to the surface. The gas/volatiles-rich LP-magmas firstly promote resorption of the transported antecrysts and then, following degassing at lower pressure and before mixing with HP-magmas, a crystal zones in equilibrium with LP-magma (low Sr-isotope crystal zone) can grow around the resorbed antecrysts (see also Francalanci et al, 2005). Even the antecrysts re-cycled from the top and descending from the degassed conduit can suffer resorption at different extent depending on the conditions of the melt in the HP-magma reservoir (Fig.…”

Section: -2003 Eruptive Crisismentioning

confidence: 99%

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Crystal recycling in the steady-state system of the active Stromboli volcano: a 2.5-ka story inferred from in situ Sr-isotope and trace element data

Francalanci

Avanzinelli

Nardini

et al. 2011

Contrib Mineral Petrol

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The nal publication is available at Springer via http://dx.doi.org/10.1007/s00410-011-0661-0Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. 3 Abstract In-situ

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Section: Significance Of the Low Sr-isotope Crystal Zonessupporting

confidence: 62%

Section: This Paper Reports the Results Of In-situmentioning

confidence: 99%

Section: Petrochemical Backgroundmentioning

confidence: 88%

Section: -2003 Eruptive Crisismentioning

confidence: 99%

See 2 more Smart Citations

Crystal recycling in the steady-state system of the active Stromboli volcano: a 2.5-ka story inferred from in situ Sr-isotope and trace element data

Francalanci

Avanzinelli

Nardini

et al. 2011

Contrib Mineral Petrol

Self Cite

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“…This shallow plumbing system behaves as an elongated degassing cell (with size ~12±3 Mm 3 ; Allard et al, 2008). From this level, a convective regime allows degassing and crystallisation processes with the production of high porphyritic magma which promotes typical Strombolian activity (e.g., Francalanci et al, 2005;Aiuppa et al, 2010;Metrich et al, 2010).…”

Section: Causes Of Strombolian Activitymentioning

confidence: 99%

Stromboli – the best place to actively learn and understand the behavior of an active volcano and its processes

Bąk¹,

Bąk²,

Szubert³

2016

geotour

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Basaltic volcanism, a dominant mode of volcanic activity on Earth, occurs as explosive eruptions, resulting from the exsolution of magmatic gases and is exhibited by IntroductionActive volcanoes can become major tourist destinations visited by people for a variety of reasons. Some people would like to experience scenic beauty close to nature, while others have the ambition to climb a volcano, take photos, or learn about the surrounding geodiversity. Most of the tourists would like to explore various volcanic features such as eruptions, lava flows, fumaroles, geysers, boiling mud, and hot springs.A large impact on volcanic tourism is related to volcanic eruptions. An example is the eruption of Eyjafjallajökull (2010) in Iceland, when during a one month period, tourists watched both the fiery fissures and vast ash clouds from a close proximity. From the tourist's point of view, the best forms of volcanic activity are long-lived eruptions, when people can observe the activity from immediate vicinity and in relative safety. Such examples are displayed in the Hawaiian and Strombolian eruptions.In this paper, we present one of the most popular active volcanos in the world, the Stromboli Volcano (Fig. 1), that has been almost continuously active for 1300 yrs (Rosi et al., 2000). Anyone who sailed to Stromboli would be able to see the explosions at any time, because the ejection of bombs, black scoria, lapilli and ash occur every 10-20 min, accompanied by continuous degassing (Barberi et al., 1993). Location and accessStromboli is the northernmost island of the Aeolian Arc, located in the Southern Tyrrhenian Sea in the central Mediterranean. The distance to the mainland is 54 km, while it is 240 km to Naples (Napoli) and 55 km to Sicily. The nearest of the other Aeolian Islands is Panarea Island (Fig. 2), 18 km to the Southwest. Stromboli -the best place to actively learn and understand the behavior of an active volcano and its processesStromboli -najlepsze miejsce do poznania aktywnego wulkanu i zrozumienia procesów wulkanicznych

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Dynamics of Strombolian explosions: Inferences from field and laboratory studies of erupted bombs from Stromboli volcano

et al. 2014

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Strombolian activity is characterized by repeated, low energy, explosions and is named after the volcano where such activity has persisted for around 2000 years, i.e., Stromboli (Aeolian Islands, Italy). Stromboli represents an excellent laboratory where measurements of such explosions can be made from safe, but close, distances. During a field campaign in 2008, two 15 cm diameter bombs were quenched and collected shortly after a normal explosion. The bombs were characterized in terms of their textural, chemical, rheological, and geophysical signatures. The vesicle and crystal size distribution of the samples, coupled with the glass chemistry, enabled us to quantify variations in the degassing history and rheology of the magma resident in the shallow (i.e., in last 250 m of conduit length). The different textural facies observed in these bombs showed that fresh magma was mingled with batches of partially to completely degassed, oxidized, high-crystallinity, high-viscosity, evolved magma. This magma sat at the top of the conduit and played only a passive role in the explosive process. The fresh, microlite-poor, vesiculated batch, however, experienced a response to the explosive event, by undergoing rapid decompression. Integration of geophysical measurements with sample analyses indicates that popular bubble-bursting models may not fit this case. We suggest that the degassed, magma forms a plug, or rheological layer, at the top of the conduit, through which the fresh magma bursts. In this model we need to consider the paradox of a slug ascending too fast through a magma of varying viscosity and yield strength.

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Intra-Grain Sr Isotope Evidence for Crystal Recycling and Multiple Magma Reservoirs in the Recent Activity of Stromboli Volcano, Southern Italy

Abstract: La pubblicazione è resa disponibile sotto le norme e i termini della licenza di deposito, secondo quanto stabilito dalla Policy per l'accesso aperto dell'Università degli Studi di Firenze (https://www.sba.unifi.it/upload/policy-oa-2016-1.pdf)

Cited by 86 publications

References 38 publications

Crystal recycling in the steady-state system of the active Stromboli volcano: a 2.5-ka story inferred from in situ Sr-isotope and trace element data

Crystal recycling in the steady-state system of the active Stromboli volcano: a 2.5-ka story inferred from in situ Sr-isotope and trace element data

Stromboli – the best place to actively learn and understand the behavior of an active volcano and its processes

Dynamics of Strombolian explosions: Inferences from field and laboratory studies of erupted bombs from Stromboli volcano

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