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Book Chapter

Eruptive, volcano-tectonic and magmatic history of the Stromboli volcano (north-eastern Aeolian archipelago)

By
L. Francalanci
L. Francalanci
Dipartimento di Scienze della Terra, Università degli Studi di Firenze, Via La Pira 4, 50121 Firenze, Italy
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F. Lucchi
F. Lucchi
Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Alma Mater Studiorum, Università di Bologna, Piazza di Porta S.Donato 1, 40126 Bologna, Italy
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J. Keller
J. Keller
Institut für Geowissenschaften – Mineralogie-Geochemie, Universität Freiburg, Albertstrasse 23b, 79104 Freiburg, Germany
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G. De Astis
G. De Astis
Istituto Nazionale di Geofisica e Vulcanologia – Sezione di Sismologia e Tettonofisica, Via di Vigna Murata 605, 00143 Roma, Italy
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C. A. Tranne
C. A. Tranne
Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Alma Mater Studiorum, Università di Bologna, Piazza di Porta S.Donato 1, 40126 Bologna, Italy
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Published:
January 01, 2013

Abstract

Stromboli is famous for its persistent volcanic activity consisting of periodic discrete explosions alternating with lava effusion and more violent explosions. This paper presents a detailed reconstruction of the geological history of Stromboli and description of the characteristics and distribution of the volcanic units and structural features. Six main growth stages (Eruptive Epochs 1–6), in addition to the c. 200 ka activity of Strombolicchio, are recognized between c. 85 ka and the present day, displaying a magma composition ranging from calc-alkaline to potassic series which usually varies with changing Eruptive Epochs. The Epochs are subdivided into sequences of eruptions and characterized by dominant central-vent summit activity with episodic phases of flank activity along fissures and eccentric vents. The activity was repeatedly interrupted by erosional and destructive phases driven by recurrent vertical caldera-type (cc1–5) and sector (and flank) collapses (sc1–7) and generally associated with significant quiescences. The different serial character of the Stromboli rocks is associated with largely variable trace element contents and isotope ratios. These petrochemical characteristics together with our new stratigraphy indicate that magmas, generated in a heterogeneous mantle wedge, underwent complex differentiation processes during their ascent. Magmas are characterized by polybaric evolution residing in small magma reservoirs that are alternatively tapped by the different collapses.

DVD:

The 10 000 scale geological map of Stromboli is included on the DVD in the printed book and can also be accessed online at http://www.geolsoc.org.uk/Memoir37-electronic. Also included is a full geochemical dataset for Stromboli.

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Contents

Geological Society, London, Memoirs

The Aeolian Islands Volcanoes

F. Lucchi
F. Lucchi
University of Bologna, Italy
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A. Peccerillo
A. Peccerillo
University of Perugia, Italy
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J. Keller
J. Keller
University Freiburg, Germany
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C. A. Tranne
C. A. Tranne
University of Bologna, Italy
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P. L. Rossi
P. L. Rossi
University of Bologna, Italy
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Geological Society of London
Volume
37
ISBN electronic:
9781862396371
Publication date:
January 01, 2013

GeoRef

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