Abstract
Sciara del Fuoco is the subaerial part of a partially filled sector-collapse scar that extends to 700 m below sea level on Stromboli volcano. The collapse occurred <5000 years ago, involved ≤1.81 km3 of rock and is the latest of a series of major collapses on the north-west flank of Stromboli. A north-east trending arc-axial fault system channels magmas into the volcano and has caused tilting and/or downthrow to the north-west. The slope of the partial cone constructed between the lateral walls of the collapse scar acts as a channelway to the sea for most eruptive products. From 700 m below sea level and extending to >2200 m and >10 km from the shore to the NNW, a fan-shaped mounded feature comprises debris avalanche deposits (>4 km3) from two or more sector collapses. Volcaniclastic density currents originating from Sciara del Fuoco follow the topographic margin of the debris avalanche deposits, although overbank currents and other unconfined currents widely cover the mounded feature with turbidites. Historical (recorded) eruptive activity in Sciara del Fuoco is considerably less than that which occurred earlier, and much of the partial fill may have formed from eruptions soon after the sector collapse. It is possible that a mass of eruptive products similar to that in the collapse scar is dispersed as volcanogenic sediment in deep water of the Tyrhennian basin. Evidence that the early post-collapse eruptive discharge was greater than the apparent recent flux (≈2kg/s) counters suggestions that a substantial part of Stromboli's growth has been endogenous. The partial fill of Sciaria del Fuoco is dominated by lava and spatter layers, rather than by the scoria and ash layers classically regarded as main constituents of Strombolian (‘cinder’) cones. Much of the volcanic slope beneath the vents is steeper than the angle of repose of loose tephra, which is therefore rapidly transported to the sea. Delicate pyroclasts that record the magmatic explosivity are selectively destroyed and diluted during sedimentary transport, mainly in avalanches and by shoreline wave reworking, and thus the submarine deposits do not record well the extent and diversity of explosive activity and associated clast-forming processes. Considerable amounts of dense (non-vesicular) fine sand and silt grains are produced by breakage and rounding of fragments of lava and agglutinate. The submarine extension of the collapse scar, and the continuing topographic depression to >2200 m below sea level, are zones of considerable by-passing of fine sand and silt, which are transported in turbidity currents. Evidently, volcanogenic sediments dispersed around island volcanoes by density currents are unlikely to record well the true spectrum and relative importance of clast-forming processes that occurred during an eruption. Marine sedimentary evidence of magmatic explosivity is particularly susceptible to partial or complete obliteration, unless there is a high rate of discharge of pyroclastic material into the sea.
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References
Abbruzzese D, Cavallaro C (1956) L'eruzione sottomarina di Stromboli del 28 Febbraio 1955. Stromboli 4:25–29
Allard P, Carbonelle J, Métrich N, Loyer H, Zettwoog P (1994) Sulphur output and magma degassing budget of Stromboli volcano. Nature 368:326–330
Anderson H, Jackson J (1987) The deep seismicity of the Tyrrhenian Sea. Geophys J R Astron Soc 91:613–637
Ayres LD (1982) Pyroclastic rocks in the geologic record. Geol Assoc Can Short Course Notes 2:1–17
Barberi F, Gasparini P, Innocenti F, Villari L (1973) Volcanism of the southern Tyrrhenian Sea and its geodynamic implications. J Geophys Res 78:5221–5232
Barberi F, Innocenti F, Ferrara G, Keller J, Villari L (1974) Evolution of Aeolian arc volcanism (Southern Tyrrhenian Sea). Earth Planet Sci Lett 21:269–276
Barberi F, Rosi M, Sodi A (1993) Volcanic hazard assessment at Stromboli based on review of historical data. Acta Vulcanol 3:173–187
Beccaluva L, Gabbianelli G, Lucchini F, Rossi PL, Savelli C (1985) Petrology and K/Ar ages of volcanics dredged from the Aeolian seamounts: implications for geodynamic evolution of the southern Tyrrhenian basin. Earth Planet Sci Lett 74:187–208
Blackburn EA, Wilson L, Sparks RSJ (1976) Mechanisms and dynamics of strombolian activity. J Geol Soc London 132:429–440
Bonasia V, Yokoyama I (1972) Rilevamento gravimetrico di Stromboli (Isole Eolie). Riv Ital Geofis 21:109–113
Capaldi G, Guerra I, Lo Bascio A, Luongo G, Pece R, Rapolla A, Scarpa R, Del Pezzo E, Martini M, Ghiara MR, Lirer L, Munno R, La Volpe L (1978) Stromboli and its 1975 eruption. Bull Volcanol 41:259–285
Caputo M, Panza GF, Postpischl D (1972) New evidences about deep structure of the Lipari arc. Tectonophysics 15:219–231
Carracedo JC (1994) The Canary Islands: an example of structural control on the growth of large oceanic-island volcanoes. J Volcanol Geotherm Res 60:225–241
De Fino M, La Volpe L, Falsaperla S, Frazzetta G, Neri G, Francalanci L, Rosi M, Sbrana A (1988) The Stromboli eruption of December 6th, 1985-April 25th, 1986: volcanological, petrological and seismological data. Rend Soc Ital Mineral Petrol 43:1021–1038
Duffield WA, Stieltjes L, Varet J (1982) Huge landslide blocks in the growth of Piton de la Fournaise, La Réunion, and Kilauea volcano, Hawaii. J Volcanol Geotherm Res 12:147–160
Dupuy C, Dostal J, Girod M, Liotard M (1981) Origin of volcanic rocks from Stromboli (Italy). J Volcanol Geotherm Res 10:49–65
Ellam RM, Menzies MA, Hawkesworth CJ, Leeman WP, Rosi M, Serri G (1988) The transition from cale-alkaline to potassic orogenic magmatism in the Aeolian Islands, Southern Italy. Bull Volcanol 50:386–398
Fabbri A, Ghisetti F, Vezzani L (1980) The Peloritani-Calabria Range and the Gioia Basin in the Calabrian Arc (Southern Italy): relationships between land and marine data. Geol Rom 19:131–150
Fabbri A, Rossi S, Sartori R, Barone A (1982) Evoluzione neogenica del margini marini dell'arco Calabro-Peloritano: implicazioni geodinamiche. Mem Soc Geol Ital 24:357–366
Falsaperla S (1991) Stromboli. Acta Vulcanol 1:272–274
Falsaperla S, Schick R (1993) Geophysical studies on Stromboli volcano— a review. Acta Vulcanol 3:153–162
Ferrari L, Manetti P (1993) Geodynamic framework of the Tyrrhenian volcanism: a review. Acta Vulcanol 3:1–9
Fiske RS, Jackson ED (1972) Orientation and growth of Hawaiian volcanic rifts: the effect of regional structure and gravitational stresses. Proc R Soc London A 329:299–326
Fornari DJ, Campbell JF (1987) Submarine topography around the Hawaiian Islands. US Geol Surv Prof Pap 1350:109–124
Francalanci L, Manetti P, Peccerillo A (1989) Volcanological and magmatological evolution of Stromboli Volcano (Aeolian Islands): the roles of fractional crystallization, magma mixing, crustal contamination and source heterogeneity. Bull Volcanol 51:355–378
Francalanci L, Manetti P, Peccerillo A, Keller, J, (1993) Magmatological evolution of the Stromboli volcano (Aeolian Arc, Italy): inferences from major and trace element and Sr isotopic composition of lavas and pyroclastic rocks. Acta Vulcanol 3:127–151
Francis P, Oppenheimer C, Stevenson D (1993) Endogenous growth of persistently active volcanoes. Nature 366:554–557
Francis PW, Wells GL (1988) Landsat Thematic Mapper observations of debris avalanche deposits in the Central Andes. Bull Volcanol 50:258–278
Gabbianelli G, Gillot PY, Lanzafame G, Romagnoli C, Rossi PL (1990) Tectonic and volcanic evolution of Panarea (Aeolian Islands, Italy). Mar Geol 92:313–326
Gabbianelli G, Romagnoli C, Rossi PL, Calanchi N (1993) Marine geology of the Panarea-Stromboli area (Aeolian Archipelago, Southeastern Tyrrhenian sea). Acta Vulcanol 3:11–20
Gasparini C, Iannaccone G, Scandone P, Scarpa R (1982) Seismotectomics of the Calabrian Arc. Tectonophysics 84:267–286
Giberti G, Jaupart C, Sartoris G (1992) Steady-state operation of Stromboli volcano, Italy: constraints on the feeding system. Bull Volcanol 54:535–541
Gillot PY (1987) Histoire volcanique des Iles Éoliennes: arc insulaire on complexe orogénique anulaire? Doc Trav IGAL 11:35–42
Gillot PY, Cornette Y (1986) The Cassignol technique for potassium-argon dating, precision and accuracy: examples from the Late Pleistocene to Recent volcanics from Southern Italy. Chem Geol 59:205–222
Gillot PY, Keller J (1993) Radiochronological dating of Stromboli. Acta Vulcanol 3:69–77
Heiken G, Wohletz K (1985) Volcanic Ash. University of California Press, 246pp
Hornig-Kjarsgaard I, Keller J, Koberski U, Stadbauer E, Francalanci L, Lenhart R (1993) Geology, stratigraphy and volcanological evolution of the island of Stromboli, Aeolian arc, Italy. Acta Vulcanol 3:21–68
Houghton BF, Wilson CJN (1989) A vesicularity index for pyroclastic deposits. Bull Volcanol 51:451–462
Istituto Geografico Militare (1958) Isola di Stromboli (Scala 1:25000)
Istituto Idrografico della Marina (1971) Isola di Stromboli (Scala 1:100 000). Carta 1601, Genova
Johnson RW (1987) Large-scale volcanic cone collapse: the 1988 slope failure of Ritter volcano, and other examples from Papua New Guinea. Bull Volcanol 49:669–679
Keller J (1982) Mediterranean island arcs. In: Thorpe RS (ed) Andesites. Wiley, Chichester, pp 307–325
Kieffer G, Pomel RS (1982) Morphologie et volcanologie de Stromboli (Iles Eoliennes). Bull Assoc Géogr Fr Paris 488:211–226
Kienle J, Kowalik Z, Murty TS (1987) Tsunamis generated by eruptions from Mount St Augustine volcano, Alaska. Science 236:1442–1447
Kokelaar P (1986) Magma-water interactions in subaqueous and emergent basaltic volcanism. Bull Volcanol 48:275–291
Kokelaar P (1992) Ordovician marine volcanic and sedimentary record of rifting and volcanotectonism: Snowdon, Wales, United Kingdom. Geo Soc Am Bull 104:1433–1455
Labazuy P (1991) Instabilités au cours de l'évolution d'un édifice volcanique, en domaine intraplaque océanique: Le Piton de la Fournaise (Ile de La Réunion). Thèse d'Univ Blaise Pascal, Clermont Ferrand, 26Opp
Lanzafame G, Rossi PL (1984) Evidenze di attività tettonica recente a Panarea (Eolie): implicazione vulcanologische. Geol Rom 23:131–139
Lénat JF, Vincent P, Bachèlery P (1989) The off-shore continuation of an active basaltic volcano: Piton de la Fournaise (Réunion Island, Indian Ocean); structural and geomorphological interpretation from sea beam mapping. J Volcanol Geotherm Res 36:11–36
Lonsdale P (1989) A geomorphological reconnaissance of the submarine part of the East Rift zone of Kilauea Volcano, Hawaii. Bull Volcanol 51:123–144
Moore JG, Clague DA, Holcomb RT, Lipman PW, Normark WR, Torresan ME (1989) Prodigious submarine landslides on the Hawaiian Ridge. J Geophys Res 94:17465–17484
Morelli C (1970) Physiography, gravity and magnetism of the Tyrrhenian Sea. Boll Geofis Teor Appl 12:275–305
Morelli C, Giese P, Cassinis R, Colombi B, Guerra I, Luongo G, Scarascia S, Schulte KG (1975) Crustal structure of Southern Italy. A seismic reflection profile between Puglia, Calabria and Sicily. Boll Geofis Teor Appl 17:183–210
Nappi G (1977) itL'eruzione dello Stromboli del Novembre 1975. Boll Soc Geol Ital 95:991–1008
Naranjo JA, Francis P (1987) High velocity debris avalanche at Lastarria volcano in the north Chilean Andes. Bull Volcanol 49:509–514
Nemec W (1990) Aspects of sediment movement on steep delta slopes. In: Colella A, Prior DB (eds) Coarse grained deltas. Spec Publ Int Assoc Sedimentol 10:29–73
Ntepe N, Dorel J (1990) Observations of seismic volcanic signals at Stromboli volcano (Italy). J Volcanol Geotherm Res 43:235–251
Pasquarè G, Francalanci L, Garduno VH, Tibaldi A (1993) Structure and geologic evolution of the Stromboli volcano, Aeolian Islands, Italy. Acta Vulcanol 3:79–89
Ripepe M, Rosi M, Saccorotti G, Napoleone G (1990) Dynamics of the explosive activity at Stromboli. Proc Int Volcanol Congress (IAVCEI), Mainz, FRG
Rittman A (1967) I Vulcani e la Loro Attività. Cappelli Ed., Bologna, 359pp
Romagnoli C (1990) Caratterizzazione morfostrutturale e vulcanologica sottomarina delle Isole Eolie (Tirreno meridionale): ipotesi di stadi evolutivi dei complessi. Tesi Dottorato in Scienze della Terra, Univ Bologna, 141pp
Romagnoli C, Kokelaar P, Rossi PL, Sodi A (1993) The submarine extension of Sciara del Fuoco feature (Stromboli Isl.): morphologic characterization. Acta Vulcanol 3:91–98
Rosi M (1980) The island of Stromboli. Rend Soc Ital Mineral Petrol 36:345–368
Rosi M. Quantitative reconstruction of recent volcanic activity: a contribution to future eruptions forecasing. In: Scarpa R, Tilling RI (eds) Manual of Volcano Monitoring. Unesco-IAVCEI, in press
Segre AG (1968) Notizie sulla morfologia submarina di Stromboli. Riv Stromboli 11:3–8
Siebert L (1984) Large volcanic debris avalanches: characteristics of source areas deposits and associated eruptions. J Volcanol Geotherm Res 22:163–197
Siebert L, Glicken H, Ui T (1987) Volcanic hazards from Bezymianny-and Bandai-type eruptions. Bull Volcanol 49:435–459
Swanson DA, Duffield WA, Fiske RS (1976) Displacement of the south flank of Kilauea Volcano: the result of forceful intrusion of magma into rift zones. US Geol Surv Prof Pap 963:1–39
Ui T (1983) Volcanic dry avalanche deposits —identification and comparison with non-volcanic debris stream deposits. J Volcanol Geotherm Res 18:135–150
Ventura G (1994) Tectonics, structural evolution and caldera formation on Vulcano Island (Aeolian Archipelago, southern Tyrrhenian Sea). J Volcanol Geotherm Res 60:207–224
Wadge G (1982) Steady state volcanoes. J Geophys Res 87:4035–4049
Wohletz K (1983) Mechanisms of hydrovolcanic pyroclast formation: grain-size, scanning electron microscopy, and field studies. J Volcanol Geotherm Res 17:31–63
Zanchi A, Francalanci L (1989) Analisis geologico strutturale dell'isola di Stromboli: alcune considerazioni preliminari. Boll GNV 5:1027–1044
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Kokelaar, P., Romagnoli, C. Sector collapse, sedimentation and clast population evolution at an active island-arc volcano: Stromboli, Italy. Bull Volcanol 57, 240–262 (1995). https://doi.org/10.1007/BF00265424
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DOI: https://doi.org/10.1007/BF00265424