Steady-state operation of Stromboli volcano, Italy: constraints on the feeding system

Giberti, G.; Jaupart, Claude; Sartoris, G.

doi:10.1007/bf00569938

Cited by 77 publications

(52 citation statements)

References 19 publications

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“…In the case study of Stromboli volcano, there are indirect estimates of a continuous input flux of fresh magma into the system based upon SO 2 [7] and heat [6,9] fluxes. There are also direct records of a continuous exogenous flux of magma [11], coupled with time integrated volumetric calculations [8] of the material partially filling the Sciara del Fuoco scar.…”

Section: Discussionmentioning

confidence: 99%

“…There are also direct records of a continuous exogenous flux of magma [11], coupled with time integrated volumetric calculations [8] of the material partially filling the Sciara del Fuoco scar. The open conduit system provides evidence for steady state conditions in the magmatic reservoir underneath the volcano (e.g., [6,7,19]). There is no information, however, on critical parameters, such as the size of the reservoir and the average time magma spends in the chamber (residence time, − ).…”

Section: Discussionmentioning

confidence: 99%

“…The estimated − , along with the available data on magma fluxes at Stromboli, permits an insight into the dynamics of the magmatic reservoir. Estimates of magma input flux at Stromboli vary from 0.01-0.02 km 3 yr 1 (SO 2 flux [7]) to 0.004-0.016 km 3 yr 1 (heat flux [9]) and ¾ 2 ð 10 3 km 3 yr 1 (heat flux [6]). These values cover an order of magnitude but are currently the best available estimates.…”

Section: Discussionmentioning

confidence: 99%

“…The volcano has been in steady-state for the last 2000 years, with activity related to an open conduit system (e.g., [6,7,19]), and the magma commonly visible inside the vents. The present day activity is moderately explosive and persistently erupts bombs, black scoriae, lapilli and ash (ca.…”

Section: Volcanological Backgroundmentioning

confidence: 99%

“…Here we present an Sr isotope survey of scoriae and lavas erupted from the Stromboli volcano during this century. The time series analysis applied to conservative geochemical tracers, such as Sr isotopes, potentially allows assessment of magma residence time and, in combination with output and input magma fluxes (e.g., [6][7][8][9]), determi-0012-821X/99/$ -see front matter © 1999 Elsevier Science B.V. All rights reserved. PII: S 0 0 1 2 -8 2 1 X ( 9 9 ) 0 0 0 1 3 -8 nation of the dynamics of the entire volcanic system at Stromboli.…”

Section: Introductionmentioning

confidence: 99%

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Sr isotope evidence for short magma residence time for the 20th century activity at Stromboli volcano, Italy

Francalanci

Tommasini

Conticelli

et al. 1999

Earth and Planetary Science Letters

107

109

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Stromboli is the type locality of continuous and moderately explosive volcanic activity. Monitoring temporal variations in the composition of the material erupted allows constraints to be made on the magma chamber dynamics and volcanic hazard. Here we present an Sr isotope survey of scoriae and lavas erupted from Stromboli volcano during this century. The material erupted is transitional between shoshonite and High-K basalt, with relatively constant major and trace element composition. This implies no substantial physical separation of minerals during crystallization (ca. 50 vol% minerals in both lavas and scoriae) and hence a relatively homogeneous reservoir. 87 Sr= 86 Sr values are constant from 1900 to ca. 1980, then, beginning prior to the major lava flow eruption of December 1985, there is a smooth decrease. The Sr isotope decrease records the arrival of a new feeding magma, and allows estimation of the magma residence time and the volume of the reservoir beneath Stromboli volcano. Our results, along with a critical assessment of magma flux estimates, are best reconciled with steady state conditions, and establish the existence of a relatively small, ¾0.3 to 0.04 km 3 , reservoir with a magma residence time .− / of ca. 19 years. Monitoring the temporal variation of isotopic ratios in active volcanoes appears a successful tool in forecasting some major volcanic eruptions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Volcanological Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Sr isotope evidence for short magma residence time for the 20th century activity at Stromboli volcano, Italy

Francalanci

Tommasini

Conticelli

et al. 1999

Earth and Planetary Science Letters

107

109

View full text Add to dashboard Cite

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Thermal insights into the dynamics of Nyiragongo lava lake from ground and satellite measurements

et al. 2013

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[1] We present new insights into the short-and long-term thermal activity of the Nyiragongo lava lake by ground-based and satellite infrared thermal imagery recorded in the first half of 2012. This is the very first time in which FLIR camera and SEVIRI data have been compared at this volcano. Maximum temperatures recorded at the molten lava were of 1180 K, whereas the lake skin remained always below~734 K in areas far from the upwelling zone and below~843 K in those proximal to the source region. Ground-based imagery yielded mean radiative power values between~0.80 and 1.10 GW. Consistently, satellite observations showed similar mean values of 1.10 GW. Overall the thermal activity of the lava lake was quite variable along the three days of field measurements at both daily and intradaily scale. SEVIRI radiative power values retrieved for the January-June 2012 period revealed fluctuations within the same variability range suggesting that no significant changes of the lava lake area had occurred over the six months. Comparison with previous radiative power estimates showed that our data well agree with the general increasing trend recorded since the reappearance of the lava lake after the last flank eruption in 2002.

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The shallow magma chamber of Stromboli Volcano (Italy)

Patané

Barberi

Gori

et al. 2017

Geophysical Research Letters

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In this work, we integrate artificial and natural seismic sources data to obtain high‐resolution images of the shallow inner structure of Stromboli Volcano. Overall, we used a total of 21,953 P readings from an active seismic experiment and an additional 2731 P and 992 S readings deriving from 269 local events. The well‐defined Vp, Vs, and Vp/Vs tomograms have highlighted the following: (i) the region where magma cumulates at shallow depths (2–4 km below sea level (bsl)), forming an elongated NE‐SW high‐velocity body (Vp ≥ 6.0 km/s and Vs ≥ 3.5 km/s), with a very fast velocity core (6.5 ≤ Vp < 7.0 km/s) of ~2 km3; (ii) the presence of some near‐vertical pipe‐like structures, characterized by relatively high P velocities values, mainly linked to past activity (e.g., Strombolicchio); and (iii) a near‐vertical pipe‐like volume with high Vp/Vs (1.78 ÷ 1.85), located beneath to the craters (down to ~1.0 km bsl), overlying a deeper region (1.0 to 3.0 km bsl) with low Vp/Vs (1.64 ÷ 1.69), interpreted as the actual and preferential pathway of magma toward the surface. Our results demonstrate the importance of combining passive and active seismic data to improve, in a tomographic inversion, the resolution of the volcanic structures and to discover where magma may be stored.

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Steady-state operation of Stromboli volcano, Italy: constraints on the feeding system

Cited by 77 publications

References 19 publications

Sr isotope evidence for short magma residence time for the 20th century activity at Stromboli volcano, Italy

Sr isotope evidence for short magma residence time for the 20th century activity at Stromboli volcano, Italy

Thermal insights into the dynamics of Nyiragongo lava lake from ground and satellite measurements

The shallow magma chamber of Stromboli Volcano (Italy)

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